In New York City



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What is Glaucoma?

Glaucoma is a disease of the optic nerve, the cord that connects your eyeball to your brain. A disease of the optic nerve is called an “optic neuropathy” and glaucoma is the most common optic neuropathy. Other optic neuropathies include
  • Arteritic ischemic optic neuropathy (Giant Cell Arteritis, Temporal Arteritis)
  • Nonarteritic ischemic optic neuropathy 
  • Nutrient deficient optic neuropathy
There are many different types of glaucoma. The most common, primary open angle glaucoma, or POAG, is characterized by an open angle (the area where the aqueous fluid drains into the trabecular meshwork). 
POAG can have elevated or normal pressure, and an enlarged or normal optic nerve. Most typically, the cup to disc ratio is enlarged. When Dr. Rapoport looks inside your eye, the optic nerve looks like a donut. In a normal eye, the “donut hole” is about 0.3 of the entire donut. In a patient with glaucoma, that hole is enlarged, anywhere from 0.6 to 0.99. This signifies thinning of the optic nerve
There is an entity called normal pressure glaucoma, in which the optic nerve is thinned and there is progressive peripheral vision loss, but the pressure is of a normal range. In these patients the goal intraocular pressure is even lower. 



Glaucoma Treatment with Dr. Rapoport in NYC