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Ophthalmology

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Glaucoma

Question
21 out of 48
 

Field defect not seen in glaucoma is: (AIPG 2010)



A Temporal field is first to be affected

B Paracentral scotomas

C Isolated scotoma may develop

D Complete barring of blind spot

Ans. A

1. The most common early visual field defect in chronic open angle glaucoma is small isolated paracentral Q scotomas between 10° and 20°. (Bjerrum’s area).

2. In uncontrolled -glaucoma a sickle shaped extension of blind spot with concavity of sickle towards the fixation point may develop. (Seidel's sign) Q

3. Isolated scotomas in Bjerrum's area may coalesce to form a classic arcuate scotoma known as Bjerrum's scotoma.Q

4. If the visual field is charted with a very small object (1/2000) the central field shows a localized constriction to exclude the blind spot (baring of blind spot).

Glaucoma Flashcard List

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