Dr. John Joseph Teahan M.D.

Recommended Articles

• What are the Side Effects of Cataract Surgery?

  Cataract is a disease which makes an eye lens to appear cloudy, thus reducing the eyesight. A normal eye lens assists in focusing light onto the retina for clear and undistorted image appearance. When a cataract forms in the eye, it makes images appear blurred and distorted. Although cataracts can...

• Differences Between Optometrists, Opticians, and Ophthalmologists

  Safeguarding Your VisionWe are all dependent on our vision in more ways than we realize. Without a healthy vision, we would be unable to smoothly do a lot of things. Our vision enables us to properly work and recognize faces and objects.There are numerous factors that can affect our eyes, including...

• What Is Tay-Sachs Disease?

  IntroductionTay-Sachs disease is a genetic disorder that affects the brain's nerve cells. Individuals who have this disorder lacks a type of protein that is needed to break down fatty substances in the brain. Without this protein, fatty substances accumulate in the brain to toxic levels, which...

• What are Gonococcal and Chlamydial Conjunctivitis?

  Conjunctivitis is an infection of the eyes. It is easily contracted, but if treated in the right way, could be cured easily. There are several types of conjunctivitis, and two of them are Gonococcal and Chlamydial Conjunctivitis. These types of conjunctivitis are usually bacterial and may affect one...

• What Is Double Vision?

  What is Double Vision?Seeing two images of the same object displaced horizontally or vertically is known as double vision or diplopia. While most of the cases of double vision are not serious, some need to be treated quickly. There are three categories of diplopia:...

• Eye Twitching: Causes and How to Stop It

  What is eye twitching?While it may seem like a normal experience of the eye, eye twitching could become irritating and could be a cause for concern when it persists for a long period of time and with higher frequency. In medical terms, eye twitching is known as blepharospasm, which is defined as an...