Dr. John Hetherington, MD

• What are the remedy for low contrast sensitivity?

  There are several options for people with low contrast sensitivity. Custom LASIK surgery, Yellow filtered lenses and Intraocular lenses. If you don't want to take the risk of having lasik surgery, yellow tinted lens can help offset low contrast sensitivity.

• What are the Symptoms of Low Contrast Sensitivity?

  People with low contrast sensitivity will have difficulty to differentiate similar colored terrains and usually need extra light to read. When they are driving at night, the walkers seem to mix up into the scenery in dim light.

• What are the common eye problems among older people?

  It is unbelievable that some people in their 80s still have good vision. It is definitely true that old individuals have different degrees of vision ability. Older people will have presbyopia, glaucoma, cataract, macular degeneration and diabetic retinopathy. So early detection and treatment of these underlying diseases are essential to control and cure them.

• What are the cataract surgery complications?

  There are several complications you may suffer after cataract surgery, such as bleeding , swelling, inflammation, damage to the cornea and severe infection. If thet are serious enough, you may need a repeat cataract surgery. However, These complications are rare which are fewer than 1 out of 100 patients. So there is no need to worry about it.

• How to choose the right color for contact lenses?

  If you don't know which one will suit you fine, you can try on different clothes with different colors. Try on different color of contact lenses and stand in front of a mirror and hold a shirt next to your face. Then closes your eyes for a while. When you open your eyes, you could find which one is more prominent, your face or the shirt. Then you can determine which color will suit you best.

• What are OTC lubricating eye drops used for?

  Lubricating eye drops are mainly used for reducing the signs and symptoms of dry eye, but it can only temporary relief of burning and irritation due to dryness of the eye. You should not use them if you are sensitive to any ingredient in the product.

• What are the Consequences of MGD in eyes?

  Meibomian glands dysfunction may cause obstructed thick secretions and possibly leads to chalazion, which is painful and unsightly. Another negative point brought by MGD is that infections of the lid margins will be significantly increased, which in turn contributes to bacterial growth. What’s more, the risks of developing postoperative infections after ocular surgeries will be higher.

• In what situation should I not use pinhole glasses?

  Pinhole glasses use the technology to reduce the amount of light getting into the eye, so people will find difficult seeing in the dark or dimly light places with pinhole glasses. So pinhole glasses are not suitable for dark or dimly light places.

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