Ocular Pathognomonics
1. Arlt's Line
--> Pathognomonic of a healed Trachoma.
2. Bone spicule
pigmentation --> Retinitis pigmentosa.
3. Busaca Nodules
--> Granulomatous Anterior uveitis.
4. Bitot's spots
--> a conjunctival triangular white patches, pathognomonic of Dry eye.
5. Black sunburst
---> RPE Hyperplasia in Sickle Cell Retinopathy.
6. Bull's Eye
Maculopathy -->
Chloroquine toxicity,
HydroxyChloroquine toxicity,
Cone dystrophy &
Batten Mayou syndrome.
7. Cobble stone
papillae --> Spring catarrh.
8. Cornea
verticillata --> Amiodarone side effect .
Other Causes --->
chloroquine,Fabry's disease,Indomethacin.
9. Cherry red
macula --> CRAO
10. Chocked disc
--> Papilloedema.
11. Candlewax
drippings (Retinochoroidal exudate)
--> sarcoid periphlebitis (Ocular Sarcoidosis).
12. Egg yolk
appearance --> Vitelliform macular dystrophy (Best disease).
13. Eclipse sign
--> Shallow Anterior chamber
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