HIGH YIELD POINT FOR OPHTHALMOLOGY 2015
http://www.doctorsquiz.com important topics for DNB-CET, AIPGMEE, FMGE, DNB-PDCET, UPSC-CMS online medical examination .
M/C cause of rubeosis iridis is--> DM (M/C in India) and CRVO (M/C in world)
Ring of Summering is seen in--> After cataract
Bruckner's test- done for detection of congenital amblyopia
In chronic papilledema, persistently elevated CSF pressure in the optic nerve produces stasis of axoplasmic flow and swellin of optic disc which eventually causes disruption of neurofilament and nerve fibre atrophy.
Optic atrophy- Congenital hereditary optic atrophy-appear at birth
Primary or simple atrophy-It is d/t disease or poisoning of second visual neuron proximal to the disc.
No evidence of local inflammation. The classic cause of primary atrophy is tabes. In such a case, disc is grey or white. The stippling of lamina cribrosa is seen. Edges are sharply defined and surrrounding retina is normal.
Secondary optic atrophy: Follows any injury or direct pressure, affecting the visual fibre in any part of their course from the lamina cribrosa to the geniculate body.
Consecutive optic atrophy- occurs secondary to retinal disease.----- SEEN IN --
A. Retinitis pigmentosa
B.Retinal detachment
C. High myopia
D.Retinochoroiditis
Vascular optic atrophy: seen in-
A. Arteriosclerosis
B.Anaemia
C.Sudden massive loss of blood
D.Occlusion of central retinal artery or vein
Post neuritic optic atrophy- ensues after optic neuritis
READ MORE
http://www.doctorsquiz.com important topics for DNB-CET, AIPGMEE, FMGE, DNB-PDCET, UPSC-CMS online medical examination .
M/C cause of rubeosis iridis is--> DM (M/C in India) and CRVO (M/C in world)
Ring of Summering is seen in--> After cataract
Bruckner's test- done for detection of congenital amblyopia
In chronic papilledema, persistently elevated CSF pressure in the optic nerve produces stasis of axoplasmic flow and swellin of optic disc which eventually causes disruption of neurofilament and nerve fibre atrophy.
Optic atrophy- Congenital hereditary optic atrophy-appear at birth
Primary or simple atrophy-It is d/t disease or poisoning of second visual neuron proximal to the disc.
No evidence of local inflammation. The classic cause of primary atrophy is tabes. In such a case, disc is grey or white. The stippling of lamina cribrosa is seen. Edges are sharply defined and surrrounding retina is normal.
Secondary optic atrophy: Follows any injury or direct pressure, affecting the visual fibre in any part of their course from the lamina cribrosa to the geniculate body.
Consecutive optic atrophy- occurs secondary to retinal disease.----- SEEN IN --
A. Retinitis pigmentosa
B.Retinal detachment
C. High myopia
D.Retinochoroiditis
Vascular optic atrophy: seen in-
A. Arteriosclerosis
B.Anaemia
C.Sudden massive loss of blood
D.Occlusion of central retinal artery or vein
Post neuritic optic atrophy- ensues after optic neuritis
READ MORE
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