(traumatic or spontaneous)
Retinal abnormalities with gradual impairment of vision
Disc white like a
♦ OPTIC ATROPHY
Primary (optic nerve disease): compression, toxins, ischaemia, optic neuritis Secondary (following papilledema):
- 'tennis ball' with 'punched out' margins: blood supply is less prominent and the number of arteries reduced help differentiate cause N.B. Any disease of the optic nerve or anterior visual pathway causing loss of vision will eventually result in optic atrophy.
visual field charting (see later) may
-Pigmentary deposits in the RETINITIS PIGMENTOSA retina
Areas of white sclera -
exposed along with areas of proliferation of retinal pigmentary epithelium - follows atrophy of the choroid
Field examination reveals a patchy loss.
Occurs in toxoplasmosis and in cytomegalovirus infection
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