Postflight right and left optic disc showing grade 1 ( superior and nasal ) edema at the right optic disc.
32.
This procedure works by burning one or more rows in between the optic disc and areas of serous retinal detachment.
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Optic disc edema, globe flattening, choroidal folds, hyperopic shifts and an increased intracranial pressure have been documented in these astronauts.
34.
Situs inversus of the optic disc may occur unilaterally or bilaterally, associated with reduced binocularity and stereoacuity resembling monofixation syndrome.
35.
Both the severity of optic disc drusen and the degree of intraocular pressure elevation have been associated with visual field loss.
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Because there are no cells to detect light on the optic disc, the corresponding part of the field of vision is invisible.
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Continued damage to the optic nerve results in the development of optic atrophy, classically seen as temporal pallor of the optic disc.
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The increased pressure leads to papilledema, which is swelling of the optic disc, the spot where the optic nerve enters the eyeball.
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Determining the equivalent width of arterioles and venules near the optic disc is also a widely used technique to identify cardiovascular risks.
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If left untreated, glaucoma can cause damage to the optic disc and a gradual loss of vision, says Peter Kansas, an Albany ophthalmologist.
