John Robert Bullock MD

Recommended Articles

• What Causes Iritis?

  What is iritis?The colored part of the eye is called the iris. When the iris gets inflamed, the condition is called iritis, which is also called anterior uveitis. The muscles present in the iris help in pupil contraction and relaxation. The anterior and posterior chambers of the eye are also...

• In Plain Sight: Vision Changes Linked to Parkinson’s Disease

  Parkinson’s disease is a chronic, progressive movement disorder that affects the nervous system. It is characterized by gradual death and breakdown of nerve cells in the brain resulting in the decreased production of a chemical messenger called dopamine. Reduced dopamine levels cause abnormal...

• What Causes Cataracts, and What Can Be Done to Fix Them?

  When the lens of the eye becomes clouded, it is deemed to be cataract. This is the leading cause of vision loss in people over the age of 40, and cataracts are responsible for the majority of blindness across the globe. Over 22 million Americans over the age of 40 are currently affected by...

• What is Cataract Surgery?

  The exact cause of cataracts is not known. Nevertheless, it seems that most cataracts are caused by long-term variations in the eye lens protein components which in turn causes cloudiness in the lens. Though not common, cataracts can affect infants and young children due to genetic enzyme...

• What Affects Night Vision?

  Problems with night vision is a very common problem. Most of the night vision problems, like halos, blurred vision, and night blindness, may be treated. Some of these may also be a sign of congenital medical condition, like retinitis pigmentosa. A number of other conditions, like exposure to the sun...

• Should I Opt for Cataracts Surgery?

  Cataracts is a cloudy area in the lens of the eye that blocks the light entering the eye, thus affecting vision. Surgery is one of the most common options to treat cataracts and improve vision. It is performed by an ophthalmologist and in most cases, is an outpatient procedure. Cataracts is an eye...