Skip to main content

EyeCU logo 250px

Home »

All About Vision

Worker Productivity and Computer Vision Syndrome

Since 43% of adults work at jobs that require prolonged use of a computer, tablet or other digital devices, computer vision syndrome (CVS) and blue light exposure are becoming increasingly serious threats to our vision, health and productivity.

Computer Vision Syndrome in the Workplace

Computer Vision Syndrome (CVS), also known as digital eye strain, is an increasingly common condition felt by those that spend two or more hours daily in front of a screen. Symptoms can include blurred vision, eye strain and fatigue, headaches, dry, red, irritated eyes, neck and back pain and headaches. Typically the symptoms of CVS are not permanent, however they can have an impact on comfort, productivity and one’s ability to focus. In rare cases, CVS can even be debilitating.

Studies show that symptoms of computer vision syndrome have become the most common workplace complaint or injury among workers with 50-90% of computer users reporting symptoms to some degree. These symptoms have been shown to have an impact on worker productivity.

The Effects of CVS on Productivity

In a study which looked at the correlation between computer vision and workplace productivity performed at the School of Optometry at the University of Alabama at Birmingham correlations were found between proper vision correction and overall productivity as well as the time it takes for a worker to complete a task. Even minor and unnoticeable vision problems were shown to affect productivity by up to 20% and to cause an increase in mistakes.

Blue Light Exposure

Blue light or high-energy visible (HEV) radiation exposure is another effect of extended digital device use. Excessive blue light exposure has been linked to sleep cycle disturbance – which can have an overall negative impact on alertness and one’s ability to focus. Blue light may also cause long term damage to the retina. While studies are currently being done to determine the effects of blue light, it is clear that protecting your eyes from blue light is recommended for eye health.

Workspace Ergonomics and Computer Eyewear

From both the worker’s and the employer’s perspectives, an investment in a combination of workspace ergonomics and computer eyewear can benefit the workplace and overall productivity. Workers will be more productive and experience fewer visual and musculoskeletal symptoms that can cause discomfort and distraction. Employers will benefit from productivity gains and reduced worker’s compensation claims.

Orthokeratology CRT & VST


Imagine freedom from daytime eyewear! Orthokeratology, best known as Ortho-K, are contact lenses which are only worn at night while you sleep, so that you don't need contacts or eyeglasses during the day.

SCHEDULE AN APPOINTMENT

Home »
eye exam near you

What is Ortho-K?

Orthokeratology, commonly called ortho-k, is a method used to correct myopia (nearsightedness) or astigmatism by wearing rigid gas permeable contact lenses overnight, so that no corrective lenses are needed during daytime hours.

Gas permeable (GP) lenses specialized for ortho-k are inserted at bedtime and worn as you sleep. Throughout the night, the lenses reshape your cornea gently so that your vision becomes clear on the following morning. The correction is temporary, and ideally no eyeglasses or contact lenses will be needed on the next day or two. In order to maintain sharp visual acuity on a daily basis, you need to wear the ortho-k reshaping lenses every night.

At present, three brands of orthokeratology contact lenses are approved for use by the FDA. Euclid Emerald, usually prescribed for myopia control, Paragon Vision Sciences, who produces “Corneal Refractive Therapy” (CRT), and Bausch and Lomb, who manufactures “Vision Shaping Treatment” (VST).

Best Candidates for Ortho-K

Ortho-k is very suitable for nearsighted people who are not appropriate candidates for vision correction surgery, such as children. Individuals of all ages with healthy eyes can try ortho-k, namely because it can be discontinued at any point without permanent effects to the eyes.

People who require vision correction and engage regularly in sports or work in extremely dusty, dirty environments will also appreciate the convenience of ortho-k.

How Does Ortho-k Feel?

Although some people have trouble wearing regular gas permeable contact lenses during the day, ortho-k GP lenses are worn while sleeping – so discomfort and awareness of the lenses in your eyes is generally not an issue.

optometrist near you
optical store near you

Vision Results from Orthokeratology

Success rates for ortho-k are generally higher for more mild vision prescriptions. The ideal goal is to provide 20/20 vision without any need for eyeglasses or contacts during the day.

According to FDA trials conducted on both CRT and VST lenses, more than 65% of ortho-k patients achieved 20/20 visual acuity. A whopping number of more than 90% of ortho-k patients achieved 20/40 vision or better (this is the legal requirement for driving without vision correction in most states). Consult with your eye doctor to find out if your vision prescription is within range for successful ortho-k treatment.

Note that although improvement in vision is generally reported within a day or two of wearing ortho-k overnight, the full effects may not be experienced until the lenses are worn for a few weeks. During this transition period, your vision will probably not be as crisp as it was with regular contacts or eyeglasses, and glare or halos around lights may be visible. Until ortho-k works fully, a temporary pair of eyeglasses may be required for specific actions, such as driving at night.

Is Ortho-k expensive?

Professional fitting for ortho-k requires a series of visits to your eye doctor. A number of pairs of contact lenses are also generally needed. GP lenses that are special for ortho-k are more costly than standard contacts. In sum, the fees for ortho-k add up to a higher total than regular contact lenses.

LASIK after Ortho-k

Some consider Ortho-K to be a non-surgical alternative to LASIK. Nonetheless, refractive surgeries, such as LASIK, are possible after treatment with ortho-k lenses. Yet because ortho-k works to reshape your cornea, you are required to stop wearing the lenses for approximately several months before undergoing LASIK. This allows your eyes to return to their original shape.

It’s important to inform your LASIK surgeon if you’ve been wearing ortho-k lenses, and you will be advised as to how long of a wait is necessary before having the laser procedure.

eye doctor near you