Correcting presbyopia with contact lenses

Correcting presbyopia with contact lenses

Myth: Only eyeglasses can correct Presbyopia

Fact: It is well-known that progressive spectacle lenses help you to see clearly, but did you know that presbyopes now have multifocal contact lenses that allow excellent vision at all distances? 

Contact lenses are great for those who do not like the feeling of wearing eyeglasses, do not like the look of eyeglasses, or those who lead a more active lifestyle.

The NaturalVue® Multifocal 1 Day Contact Lenses are a great option to correct Presbyopia, as these lenses offer excellent vision at all distances1 – at near (reading your phone), intermediate (computer distance), and far (trees and road signs) – without using readers. 

In a clinical study1, people with presbyopia gave higher ratings to NaturalVue Multifocal for vision in everyday situations vs. their current correction. NaturalVue® Multifocal Contact Lens wearers can perform 92% of daily activities without reading glasses, even in low light.

People prefer NaturalVue™ Multifocal 1 Day contact lenses over some options for better vision1, like reading very small print or using a cell phone:

Why NaturalVue® Multifocal?

  • See clearly like spectacles2 with little compromise
  • No need for readers – Clear vision near, far, and everywhere in between
  • Superior overall vision – 89% found better vision for everyday activities.1
  • Daily disposability for a fresh new pair every day
  • Added UV protection for your busy outdoor days**

5 pairs free trial of NaturalVue® Multifocal 1 Day Contact Lenses


Sources:

1. VTI Data on file, 2015. N=59. Data assessed after 1 week of wear. Preference based on those who expressed a preference among brands tested. p<0.05.

2. VTI Data on file, 2015. N=59. Data assessed after 1 week of wear. Of those who expressed a preference of mode of vision, 79% preferred NVMF vs. select tested brands. Attribute ratings based on subjective ratings from patients vs. select brands (100-point scale, 0=extremely poor and 100=extremely good/no problem).

**UV absorbing contact lenses aren’t substitutes for protective UV absorbing eyewear – for example, protective UV absorbing goggles or sunglasses – because they don’t completely cover the eye and surrounding area. Patients should continue to use UV absorbing eyewear as directed. Note: Long term exposure to UV radiation is a part of risk factors associated with cataracts. Exposure is according to a number of factors, for instance, environmental conditions (altitude, geography, cloud cover) and personal factors (extent and nature of outdoor activities). UV absorbing contact lenses help provide protection against harmful UV radiation. However, clinical studies have not been done to demonstrate that wearing UV absorbing contact lenses reduces the risk of developing cataracts or other eye problems.

5 biggest myopia myths

5 biggest myopia myths

1. Myopia can be cured or reversed with eye exercises.

FALSE: While eye exercises may relieve eye fatigue temporarily, there is no scientific evidence that myopia can be reversed or its progression slowed down with eye exercises.  

2. Contact Lenses are unsafe for kids

FALSE:  Daily disposables provide decreased inflammatory adverse events (12.5x less) as compared to reusable contact lenses1

In fact, children may be safer soft contact lens wearers than teens with more  

parental supervision and support. 

3. Soft multifocal contact lenses are not effective in reducing myopia progression. 

FALSE:  The NaturalVue® Multifocal 1 Day Contact Lenses are indicated to reduce myopic progression in children.  NaturalVue Multifocal 1 Day soft contact lenses utilize patented optics to move the light rays inside the retina so that the signal for the eye to grow and elongate is reduced (addressing Peripheral Hyperopia). 2,3

NaturalVue® Multifocal 1 Day Contact LensesProven to Decrease Myopia Progression in 98% of children studied.

  • 81% of children’s progression stopped completely, with some showing reversal. 4
  • 0.82D average dioptric decrease per year in children ages 6-194*

4. Wearing glasses that correct their vision is sufficient for myopic kids

FALSE:  Data has shown that routine correction of myopia in eyeglasses or contact lenses increases myopia by signaling the eye to elongate or grow.  This occurs when routine correction moves images behind the retina (known as peripheral hyperopia) which may signal the eye to grow.5

Data suggests that the optimal correction should bring the image inside of the retina.5 The patented optics of NaturalVue® Multifocal contact lenses focus peripheral light rays in front of the retina to remove peripheral hyperopia, thus reducing the signal for the eye to grow.2,3

5. It is better to be undercorrected so that our myopia will not worsen.

FALSE:  Undercorrection of myopia may lead to the stimulation of eye elongation due to the presence of blurred vision at any distance and accelerate the progression of myopia. Instead, a full distance correction for myopia with a progressive reading addition is suggested to reduce the progression of myopia.6

5 pairs free trial of NaturalVue® Multifocal 1 Day Contact Lenses


Sources:

  1. Chalmers et al. Multicenter Case-Control Study of the Role of Lens Materials and Care Products on the Development of Corneal Infiltrates. Optometry and Vision Science, Vol. 89, No. 3, March 2012.
  2. Dillehay S, Woods J, Situ P, Payor R, Griffin R, Tyson M, Jones L. (2014). Comparison of Three Power Levels of a Novel Soft Contact Lens Optical Design to Reduce Suspected Risk Factors for the Progression of Juvenile Onset Myopia. ARVO Poster, Poster #A00863637; Investigative Ophthalmology & Visual Science. 55(13). 3637
  3. Payor R, Woods J, Situ P, Dillehay S, Griffin R, Tyson M, & Jones L. (2014) Feasibility Testing of a Novel SCL Optical Design to Reduce Suspected Risk Factors for the Progression of JuvenileOnset Myopia. Investigative Ophthalmology & Visual Science. 55(13). 3638. Retrieved from http://iovs.arvojournals.org/article.aspx?articleid=2269075.
  4. Cooper J, O’Connor B, Watanabe R, Fuerst R, Berger S, Eisenberg N, Dillehay SM. Case series analysis of myopic progression control with a unique extended depth of focus multifocal contact lens. Eye & Contact Lens. 2018;4(5):e16-e24.

*Both eyes combined; On an annualised basis in children 6-19. Retrospective analysis of 32 children, ages 6 to 19, across 10 different practice locations who wore the lenses for 6-25 months.

5. Peripheral Hyperopia explanation summarized from: Gifford P, & Gifford KL. (2016). The Future of Myopia Control Contact Lenses. Optometry and Vision Science, 93(4), 336-343. Smith EL., Kee C, Ramamirtham R, Qiao-Grider Y, & Hung L. (2005). Peripheral Vision Can Influence Eye Growth and Refractive Development in Infant Monkeys.
 Investigative Ophthalmology & Visual Science. 46(11): 3965. Cooper J, Schulman E, Jamal N. (2012). Current Status on the Development and Treatment of Myopia. Optometry. 83(5):179-199.

6. http://reviewofmm.com/does-the-undercorrection-of-myopia-inhibit-myopia-progression/#:~:text=Overall%2C%20undercorrection%20of%20myopia%20may,reduce%20the%20progression%20of%20myopia.

Myopia – Risks and Management

Myopia – Risks and Management

What is myopia?

Myopia is a very common eye health condition. Often called “short-sighted,” a child with myopia can see clearly up close but has blurry vision when looking at objects in the distance—like a smartboard.

Myopia happens when the normal eye grows too long from front to back. 

Light rays have trouble reaching the right spot on the back of the eye (the retina) to achieve clear distance vision.

It’s more than just stronger, thicker glasses. Myopia in kids can get worse as they grow, increasing the risk of serious eye conditions.

What causes myopia?

  • Myopia can be inherited from one generation to the next. If mum or dad wears glasses, chances are their child will too.1
  • Lack of time spent outdoors in the sun has been linked to the development of myopia.1, 2,3
  • Spending more time reading close-up on digital devices may also contribute to a child’s myopia.2,3,4
  • And there’s the routine correction of myopia – resulting in Peripheral Hyperopia – that has also been shown to signal the eye to grow, thus causing myopia.2

What are the eye health risks?

The number of kids with myopia is growing at an alarming rate around the world.  The younger your child develops myopia, the greater the risk of serious eye conditions like retinal detachment, glaucoma, cataracts, and even blindness.5

Beyond the eye health risks, myopia can negatively impact your child’s performance in school and other activities.

There is NO SAFE level of myopia.5  Practitioners and researchers do not know which child will progress to what degree.  Each prescription (diopter) increase can have a significant impact and the impact can occur anywhere – in low to high myopia ranges.6   Earlier intervention may be ideal, but any intervention is a potential benefit.   If we can reduce the level of progression, data suggests that the impact could be significant:

  • 20% reduction in retinal detachment, cataracts, glaucoma, and overall visual impairment.6
  • 40% reduction in macular degeneration. 6

This means – ½ to nearly 1 year of visual impairment could be saved. 6

What are some evidence-based ways to slow down myopia progression?

Your eye care practitioners may be able to help slow or control your child’s myopia with specially designed glasses, eye drops, or contact lenses. All of these solutions have been shown to have various levels of effectiveness.  Talk to your eye care practitioner for more information like how each works, effectiveness rates, benefits, and limitations. 

  • Specially Designed Eyeglasses
  • Pharmaceutical Eye Drops (Atropine)
  • Specialty Contact Lenses
    • Hard contact lenses (or Orthokeratology or Ortho-K lenses) that physically re-shape the cornea at night during sleep.
    • Soft multifocal contact lenses like NaturalVue® Multifocal 1 Day Contact Lenses. 
      • NaturalVue Multifocal 1 Day soft contact lenses, by comparison, utilize patented optics to move the light rays inside the retina so that the signal for the eye to grow and elongate is reduced (addressing Peripheral Hyperopia). 16,17
      • These lenses provide excellent vision by day.18
      • These lenses are daily disposables, which means comfortable daily wear with no cleaning or maintenance.
      • Clinically effective for myopia progression control.19  
        • 98% of children showed a decrease in myopia progression19
        • 81% of children’s progression stopped completely, with some showing reversal. 19
        • 0.82D average dioptric decrease per year in children ages 6-1919*

5 pairs free trial of NaturalVue® Multifocal 1 Day Contact Lenses


Sources:

  1. Gifford P, & Gifford KL. (2016). The Future of Myopia Control Contact Lenses. Optometry and Vision Science. 93(4): 336-343.
  2. Enthoven CA, Tideman JWL, Polling JR, Yang-Huang J, Raat H, Klaver CCW. The impact of computer use on myopia development in childhood: The Generation R study. (2020) Mar;132:105988. doi: 10.1016/j.ypmed.2020.105988. Epub 2020 Jan 15.
  3. Grzybowski A, Kanclerz P, Tsubota K, Lanca C, Saw SM. BMC Ophthalmology (2020) Jan 14;20(1):27. doi: 10.1186/s12886-019-1220-0.
  4. Huang HM, Chang DS, Wu PC. The Association Between Near Work Activities and Myopia in Children – a Systematic Review and Meta-Analysis. PLoS ONE. 2015 Oct; 10(10): e0140419
  5. Flitcroft D. The complex interactions of retinal, optical and environmental factors in myopia aetiology. Progress in Retinal and Eye Research. 2012;31(6):622-660.
  6. Bullimore MA, Brennan NA. Myopia Control: Why Each Diopter Matters. Optom Vis Sci 2019 Jun.96(6):463-465
  7. Huang J, et al. (2016). Efficacy Comparison of 16 Interventions for Myopia Control in Children. Ophthalmology. 123(4): 697-708.
  8. Cooper J, Schulman E, Jamal N. (2012). Current Status on the Development and Treatment of Myopia. Optometry. 83(5):179-199.
  9. Cope j., et al. (2016). Acanthamoeba Keratitis among Rigid Gas Permeable Contact Lens Wearers in the United States, 2005 through 2011. Ophthalmology. 123(7): 1435-1441.
  10. Nichols, J. (2017). Contact Lenses 2016. Contact Lens Spectrum. 32(January 2017): 22-29.
  11. Chalmers RL, Keay L, McNally J, & Kern J. (2012). Multicenter Case-Control Study of the Role of Lens Materials and Care Products on the Development of Corneal Infiltrates. Optometry and Vision Science. 89(3): 316-325.
  12. Tan D, Tay SA, Loh, K, & Chia A. (2016). Topical Atropine in the Control of Myopia.  Asia-Pacific Journal of Ophthalmology. 5(6): 424-428.
  13. Liu Y M, & Xie P. (2016). The Safety of Orthokeratology—A Systematic Review. Eye & Contact Lens: Science & Clinical Practice. 42(1): 35-42.
  14. Gifford P, & Gifford KL. (2016). The Future of Myopia Control Contact Lenses. Optometry and Vision Science. 93(4): 336-343. 
  15. Lam CSY, Tang WC, Tse DY, et al. Defocus Incorporated Multiple Segments (DIMS) spectacle lenses slow myopia progression: a 2-year randomized clinical trial. Br J Ophthalmol. 2019 May29, e pub.
  16. Dillehay S, Woods J, Situ P, Payor R, Griffin R, Tyson M, Jones L. (2014). Comparison of Three Power Levels of a Novel Soft Contact Lens Optical Design to Reduce Suspected Risk Factors for the Progression of Juvenile Onset Myopia. ARVO Poster, Poster #A00863637; Investigative Ophthalmology & Visual Science. 55(13). 3637
  17. Payor R, Woods J, Situ P, Dillehay S, Griffin R, Tyson M, & Jones L. (2014) Feasibility Testing of a Novel SCL Optical Design to Reduce Suspected Risk Factors for the Progression of JuvenileOnset Myopia. Investigative Ophthalmology & Visual Science. 55(13). 3638. Retrieved from http://iovs.arvojournals.org/article.aspx?articleid=2269075.
  18. VTI data on file. N=59. Data assessed after 1 week of wear.
  19. Cooper J, O’Connor B, Watanabe R, Fuerst R, Berger S, Eisenberg N, Dillehay SM. Case series analysis of myopic progression control with a unique extended depth of focus multifocal contact lens. Eye & Contact Lens. 2018;4(5):e16-e24.

*Both eyes combined; On an annualised basis in children 6-19. Retrospective analysis of 32 children, ages 6 to 19, across 10 different practice locations who wore the lenses for 6-25 months.

Managing Myopia Progression in Children

Managing Myopia Progression in Children

Why is it important to manage myopia progression in children?

Myopia, also known as short sightedness or near sightedness, is an increasingly common condition that affects children’s sight. There can be many causes of myopia, such as family history or genetics, spending too much time focusing on close objects as a child, not spending enough time outdoors, etc.

Myopia can progress rapidly in children if it is not managed well, and every 1 diopter increase in myopia increases risk of myopic maculopathy by 67% – there is no “safe” level of myopia. As seen in the table below, myopia increases the risks of eye diseases such as cataracts, glaucoma, retinal detachment, and myopic maculopathy.

Some other risk factors (non-exhaustive) include diabetes, high blood pressure, family history of eye disease, or taking prescription medications which may affect the eyes.

Do take comprehensive eye exams to check your child’s eyes or your and detect eye diseases such as cataracts and glaucoma. You should also maintain healthy habits such as relaxing your eyes and eating healthy to get sufficient vitamins for your eyes and body.

What are some ways to slow down myopia progression?

EyedropsEyeglassesContact Lenses
What is it and how can it manage myopia progression?Atropine eyedrops, with differing doses available depending on the child’s needsIt slows down the progression of myopia in about 50% to 60% of children for low-dose atropine 0.01%, and 20% to 30% of children may require higher dose atropine (0.125% / 1%).Bifocal lenses: top half corrects for long distance and the bottom half corrects for reading vision, research has shown that it can slow down myopia progression  Myopia control lenses of differing designs: special lenses designed to help control myopia progression more effectively than the typical bifocal and progressive designsHard contact lenses, also known as Orthokeratology or OrthoK lenses which are worn to sleep; it flattens the central area of the cornea to restore clear vision and the mid-peripheral area is steepened to control myopia progression
Soft contact lenses: multifocal lenses can help slow down myopia progression. These lenses are clinically effective for myopia progression control.
AdvantagesThese eye drops can help to complement the eyeglasses that your child uses.Eyeglasses are usually more cost-effective than contact lenses. No infection risks involved as kids are not required to touch their eyes or put lenses into their eyes.Hard contact lenses: no need to wear anything during the day to see well, parents are able to supervise closelySoft contact lenses: lowest infection risk for daily disposables, minimal lifestyle limitations such as need for sufficient sleep
LimitationsChildren on 1% atropine eye drop treatment often require photochromatic or sunglasses with UV filters, and a progressive or reading additions in their glasses. Other possible side effects are often mild and temporary e.g. glare, dry eyes, eye allergy. Eyeglasses may be inconvenient when leading an active lifestyle, or some kids may find eyeglasses uncomfortableBifocal lenses: obvious line in the middleMyopia control lenses: pricier than normal single vision or bifocal lensesHard contact lenses: need to have sufficient amount of sleep every night, need to ensure hygieneSoft contact lenses: daily disposables may cost more

References:

  1. https://www.snec.com.sg/patient-care/specialties-and-services/clinics-centres/myopia-centre/Patient-Care
  2. https://pubmed.ncbi.nlm.nih.gov/24435660/
  3. https://www.singhealth.com.sg/news/patient-care/childhood-myopia-use-of-atropine-eye-drops

3 Benefits of Photochromic Lenses

3 Benefits of Photochromic Lenses

What are photochromic lenses and how do they work?​

Photochromic lenses also called light-adaptive lenses, or variable-tint lenses, look like regular clear lenses when indoors but automatically darken when exposed to sunlight. Ultraviolet (UV) rays from the sun affect the molecules in the photochromic lenses causing the lenses to change colour. Photochromic lenses may darken even on overcast days as UV rays still penetrate the clouds. These lenses usually would not darken inside a vehicle as the windshield glass blocks out most of the sun’s UV rays.

What are the benefits of photochromic lenses?

  1. Photochromic lenses help to reduce eye strain and decrease the risk of eye damage such as cataracts later in life by blocking up to 100% of the sun’s harmful ultraviolet light.
  2. With photochromic glasses, this reduces the hassle of needing to bring a pair of sunglasses whenever you are going out and switch between the two when travelling to different environments.
  3. Although photochromic glasses can be more expensive than ordinary prescription glasses, it may be a cost-effective option as you only have to pay for 1 pair of eyewear.

How does UV rays affect eye health?

Extended exposure to UV rays can harm your vision and increase the risk of several eye diseases in the long term. UV rays can cause the cornea (front of the eye) to become inflamed or burned. Additionally, it can also lead to skin cancer around eyelids, cataracts (clouding of the lens of the eye) and pterygium (tissue growth on the surface of the eye) which can impair vision.

One of the most popular brands of photochromic lenses is Transitions® lenses.

What are the benefits of Transitions® lenses?

  •   Automatically adapt to the perfect shade based on the changing light conditions, enabling you to see clearly with just the right amount of light
  •   Blocks 100% of UV rays and protect against harmful blue light indoors and outdoors
  •   Designed to be worn all day, everyday
  •   Anyone can wear Transitions® lenses as there are options for every lifestyle and every age, from kids to adults and elderly
  • Designed to fit virtually every frame, style, size and prescription

How long do photochromic lenses usually last?

Plastic photochromic lenses usually last about 2.5 to 3 years which is longer than the typical amount of time one changes his/her glasses due to changes in one’s prescription. In contrast, glass photochromic lenses would never lose their ability to block UV rays. In fact, its function would improve with more usage.


Sources

Essilor

http://www.x-celoptical.com/faq.php

https://www.cancer.org/cancer/cancer-causes/radiation-exposure/uv-radiation.html#:~:text=UV%20rays%2C%20either%20from%20the,can%20also%20cause%20eye%20problems.

https://www.northwoodvision.com/6-things-you-should-know-about-uv-radiation-and-your-eyes/

https://www.cancer.org/cancer/cancer-causes/radiation-exposure/uv-radiation.html#:~:text=UV%20rays%2C%20either%20from%20the,can%20also%20cause%20eye%20problems.

How to Sanitise your Eyewear in the COVID-19 Era

How to Sanitise your Eyewear in the COVID-19 Era

Guest post by Jeff Herman, chief editor of AllAboutVision.com

Your new hand-washing habit can help you to keep your glasses and contact lenses free of viruses and germs in this coronavirus pandemic … but don’t even think of reaching for a sanitizing wipe to clean your glasses.

There is a right way and a wrong way to disinfect your spectacles. Soap and water are good, sanitizing wipes (which are still hard to find on store shelves) are bad.

How to care for your contact lenses now? It’s really no different than before (but more on that later).

How to keep your glasses germ- and virus-free

Health officials around the world advise not touching your face to reduce the risk of transmitting the coronavirus to your eyes, nose and mouth. Another way to lower your odds of contracting coronavirus is to keep your specs spotless.

What’s the best way to wash your glasses? We asked optometrist Chui Wen Juan, of C C Chui Optical in Singapore, for the do’s and don’ts for ridding your glasses of contagions — as well as everyday dirt, grime and sweat.

“The safest way to clean spectacles is to use soap and water,” Chui says. “Thorough washing eliminates pathogens — bacteria, virus, fungi — and also body fluids such as perspiration, saliva, sebum (skin oil) that can harbour or encourage growth of pathogens.”

“Most hand soaps and liquid non-abrasive detergents can be used, along with cool — not cold — or tepid — not hot — water,” she adds.  

‘’The added advantage of using soap and water to wash the spectacles is that the hands are also being cleaned at the same time,” Chui says. “In fact, if your hands are dirty or greasy, you should wash them before cleaning your spectacles.”

glasses, reading, eyeglasses

And the don’ts?

“Avoid bath gels or soap with lanolin and sorbolene, as these will leave a film over the spectacles’ lenses,” Chui says.

“Avoid abrasive cleaners — those for polishing ovens and stoves — or acetone-type cleaners — nail polish remover, for example — as these will damage coatings on the lenses or the paintwork of the frames,” she adds.

For the same reasons, sanitizing or disinfecting wipes should never be used to clean your glasses.

“Sanitizing wipes often contain alcohol, which may be damaging to certain types of plastics in spectacle lenses or frames,” Chui says. “Sanitizing wipes may also contain emollients to keep the skin moisturised, but will leave a film on the spectacle lenses.”

Be gentle when washing and drying your glasses

One difference between your hand-washing and glasses-washing habits: Wash your hands thoroughly and with vigor but be gentle when washing your spectacles. The last thing you want is to break your lenses and have trouble getting a repair because your optical shop is closed.

Take it easy when drying your glasses too.

“Use the microfibre cloth — which is usually provided with your spectacles — to gently dry your spectacles,” Chui says. “Most spectacle lenses will come with water-repellent coatings, so you’ll find that very little water actually remains on the lenses, so there is no need to rub it aggressively.”

And how often should you clean your glasses? 

“An easy rule of thumb to remember is to wash your spectacles as often as you would wash your face,” “After all, would one put dirty spectacles on a cleaned face?”

Chui Wen Juan, Optometrist, C C Chui Optical

“Perhaps it might be most helpful and convenient to wash the spectacles in the morning, to start the day with clean and clear spectacles.”

Two more tips to lower your odds of transmitting coronavirus from your glasses to your face, eyes, nose or mouth:

“Make sure your spectacles are well-fitted,” Chui says. “If they are loose or uncomfortable, the wearer will have a tendency to touch them more often, which means spectacles get dirtier more quickly and there is also a risk of infection when touching the face with contaminated hands and fingers.”

“Remember also to wash the microfibre cloth for spectacles about once a week (more if heavily used),” she adds. “Simply use soap and water, and avoid fabric softeners.”

How to take care of your contact lenses

If you wear contact lenses, how can you ensure you’re doing all the right things in the lens-cleaning process to cut your COVID-19 risk?

“The first golden rule of wearing contact lenses has always been — even pre-COVID-19 — to wash and dry hands thoroughly before handling contact lenses,” Chui says.

“There are many types of cleaners and disinfectants for contact lenses,” she says. “Most of the commercially available ones have been tested to FDA standards, but must be used correctly to have maximum efficacy.”  

Your contact lens practitioner will advise you on how to care for your contact lenses, as certain disinfecting products may be more compatible with certain types of soft contact lenses.

“Last but not least, contact lens practitioners have always advised wearers not to wear contact lenses when unwell — for example, if you have the cold or flu — or if your eyes are sore,” Chui says. “Even though contact lenses did not cause the primary problem (colds and flu), it may exacerbate the symptoms of sore eyes (that occasionally accompanies respiratory illnesses).”

Reusing contaminated contact lenses and lens cases may delay recovery of the illness or cause a reinfection, she adds. If contact lenses were being used just before an episode of illness, it is best to discard those used lenses and lens cases and start fresh following recovery.

Why you should be extra mindful of your eyewear now

“As many places face lockdown and operating restrictions, it is all the more important to keep your eyewear safe, because it may be inconvenient to get repairs or replacements done,” Chui says.

“It is always safer to keep spectacles in the case when not in use, to mitigate accidental mishandling by young children, pets or the family member who unwittingly sat on your spectacles,” she adds. “Avoid placing spectacles, even for a brief moment, on chairs, beds, sofas, the floor — anywhere spectacles are least expected to be.”  

“In doing all these, not only will you save yourself unnecessary inconvenience, but you’ll also extend the life of your eyewear … and save your wallet.”

All About Vision, based in the United States, now has websites in Spanish, French, Portuguese and Hindi serving readers in Latin America, Canada, Brazil, India and the United Kingdom. In May, All About Vision launched a website for Australia.

Chui Wen Juan, is a second-generation optometrist from C C Chui Optical with 17 years experience. She trained and practised in Australia before returning to her family’s practice in Singapore. C C Chui Optical is now serving the 3rd generation of clients since its establishment in 1976.

3 Ways to Protect Yourself from Blue Light

3 Ways to Protect Yourself from Blue Light

What is Blue light?

Sunlight contains red, orange, yellow, green and blue light rays. Each of these individual rays have their respective energies and wavelengths.

Source: Points de Vue

Blue light is a colour in the visible light spectrum that can be seen by the human eye.  Located at the beginning of the visible spectrum, it includes harmful blue-violet radiations (415-455 nm) as well as beneficial blue-turquoise radiations (465-495 nm), involved in normal metabolic functioning in humans.

Blue light is Everywhere!

Blue light is everywhere – it is not only present in sunlight, but also in artificial and man-made light.  Most notably, the backlit displays of digital devices such as smartphones, computers and electronic notebooks, which are now used very frequently by people of all ages, emit significant amounts of blue light.

Blue light can be both good and harmful

Being exposed to blue light in the daytime is crucial in the regulation of the circadian rhythm – the body’s natural sleep-wake cycle. It also helps to boost alertness, aids memory and cognitive function and also elevates mood.

However, overexposure to blue light, especially late at night, has detrimental effects. Blue light emitted from smartphones and other digital devices can decrease contrast, leading to digital eye strain, leading to irritated or sore eyes, headaches, as well as difficulty focusing. Additionally, studies suggest that prolonged exposure to blue light over a period of time could lead to damaged retinal cells, which can increase the risk of age-related macular degeneration. Exposure to blue light right before sleeping at night also disrupts your natural sleep-wake cycle and hurts the quality of your sleep.

What can you do to protect your eyes from blue light?

In today’s digital age, prolonged usage of electronic devices is becoming a norm in our daily lives. Most people spend at least 12 hours a day consuming some form of media, yet it only takes as little as two hours in front of a screen to cause digital eye strain. Additionally, nearly 60% of people use their smartphones right before and after bed.

As prolonged exposure to blue light is close to unavoidable for many, the following are ways to reduce your exposure to harmful blue light:

1) Blue light filters 

A convenient, wallet-friendly and hassle-free way to reduce your blue light exposure while using electronic devices is to use blue light filters. These filters serve to prevent significant amounts of blue light from reaching your eyes without compromising on the visibility of the backlit display, and can be used for smartphones, tablets, and computer screens.

2) Blue light blocking/digital booster lenses 

Did you know that there are two types of lenses that have been developed to reduce blue light transmission to the eye?

  • Blue light blocking lenses

These lenses filter out blue light by blocking the transmission of a specific range of wavelengths and absorbing just the right amount of blue light. Blue light filters can either be built inside and incorporated into the lenses, or applied as an additional layer of coating on the lenses.

By blocking up to 50% of harmful blue light, our Signature Blue Light Protect lenses can help to protect your eyes without any colour distortions.

  • Digital boosters

In addition to filtering out blue light, digital boosters also relax our eyes in front of digital screens, reducing digital eye strain through an additional power zone which provides greater comfort and focusing support.

Essilor’s Crizal Eyezen™: Lenses for Digitally Connected People

Available in both prescription glasses and non-prescription glasses, Crizal Eyezen filters out harmful blue light and helps you to see more comfortably regardless of the size of screens (including the smaller ones) and the distance between the screen and your eyes. 

Source: Essilor SG

Essilor’s Crizal Eyezen™ boasts the following features:

  • Eyezen™ Focus provides extra focusing support with the additional power zone
  • Light Scan® filter out harmful blue violet light while letting beneficial blue turquoise light to pass through
  • W.A.V.E Technology™ provides sharp vision via fine tuned lens surface

3) Practise good eye health habits

Decrease the amount of time spent in front of these screens and take frequent breaks to give your eyes a rest by practising the 20-20-20 rule to relax your eyes. Maintain an appropriate distance between the digital screen and your eyes.

20-20-20 Rule: Every 20 minutes look at something 20 feet away for 20 seconds.

In addition, put your phone away at least 30 minutes before you sleep to prevent your sleep quality from being negatively affected. The longer the time you disconnect from your electronic devices before you sleep,

3 Ways to Correct Presbyopia

3 Ways to Correct Presbyopia

There are 3 main ways to correct presbyopia. Each treatment aims to enable the eyes to see near objects clearer with reduced eye strain.

1)      Eyeglasses

Eyeglasses are the most common and least invasive treatment for presbyopia. There are different types of eyeglasses designed to correct presbyopia. The table below compares 3 types of eyeglasses more commonly used by people with presbyopia.

Reading GlassesBifocal LensesProgressive Lenses
What is it?Single vision glasses which only corrects near vision.Lens is separated into two sections by a visible line. Top section of the lens is used to correct far vision while the bottom section is used to correct near distance.Enables you to see clearly at all distances more seamlessly as correction power varies smoothly over the lenses.
AdvantagesTend to be less expensiveAble to wear it all day.Able to wear it all day across various daily activities. Tend to provide more visual comfort than bifocal lenses.
LimitationsReading glasses only help you to see up close. Only worn when seeing near objects. Unable to wear it all day.Provides more limited range of vision as compared to progressive lenses.Tend to be more expensive.

Varilux® Progressive Lenses

Varilux progressive lenses provide sharp vision and smooth transitions at any distance, even in dimly lit conditions — eliminating the blurriness and low-light issues of ordinary progressive lenses, and helping you to achieve the most natural vision possible. It also eliminates off-balance, so that you can continue to live, play and work normally.

Key market leading innovations of Varilux® progressive lenses 

  • SynchronEyes™ – clearer vision from left to right and top to bottom.
  • Wavefront Advanced Vision Enhancement™ – sharp vision at any distance, even in low light.
  • 4D Technology™ – instant focus as your eyes move around.
  • Nanoptix™ – no ‘swim’ effect (where peripheral vision can be slightly altered by the changes that occur at the edge of progressive lenses

Image depicting difference in vision between standard bifocal lenses and Varilux® progressive lenses. Source: Essilor

Do not like the feeling of wearing glasses? Planning to swim or engage in more rigorous exercises? Fret not, contact lenses could also correct presbyopia.

2)      Contact Lenses

Another advantage of contact lenses as compared to eye-glasses is that contact lenses are worn closer to the eye, this increases our field of vision. There are several different types of contact lenses that could correct near vision. Multi-focal contact lenses are most commonly used and they are similar to progressive lenses where it corrects both near and far vision.

3)      Surgery

For those who do not like wearing glasses or contact lenses, surgical procedures could also treat presbyopia. One possible surgical procedure that has been growing in popularity is corneal inlay which lasts for 10 to 15 minutes. Tiny lenses or other optical devices are inserted into the non-dominant eye’s cornea. This implant corrects near vision through increasing the depth of focus at the center of the cornea.

However, surgery may not be a suitable solution for everyone. Thus, you are recommended to undergo a comprehensive eye examination and consult an ophthalmologist who specializes in the surgical correction of presbyopia to determine whether surgery is a viable solution for you.