Opportunistic microorganism
Opportunistic condition, Opportunistic infection.
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- Optic cup
The white, cup-like area in the center of the optic disc. The optic disk is the circular area at the back of the inside of the eye where the optic nerve connects to the retina.
- Optic glioma
A rare, most commonly benign tumor on the optic nerve or the optic chiasm (the crossing of the two optic nerves). Optic gliomas cause pressure and destruction of normal optic nerve tissue. They are most common in children and teens. Optic gliomas are strongly associated with neurofibromatosis (NF1).
- Optic disc
The circular area in the back of the inside of the eye where the optic nerve connects to the retina. Also called the optic nerve head.
- Optic nerve
The optic nerve connects the eye to the brain. The optic nerve carries the impulses formed by the retina, the nerve layer that lines the back of the eye and senses light and creates impulses. These impulses are dispatched through the optic nerve to the brain, which interprets them as images. Using an ophthalmoscope, the […]
- Optic nerve head
The circular area in the back of the inside of the eye where the optic nerve connects to the retina.