Van Herick angle grade ‘3’ of anterior chamber denotes –
Correct Answer: Moderately open angle
Description: The Van Herick technique for grading the depth of anterior chamber angles is one of the easiest methods to estimate the "openness" of the angle. With an optic section of the limbal cornea, orient your beam at about a 60 degree angle and compare the width of the corneal section and the width of the shadow adjacent to it. 1:1 -Wide Open angle, VH grade 4 1:1/2 - Moderately Open angle, VH grade 3 1:1/4 - Narrow angle, VH grade 2 (Angle Closure Possible) 1: <1/4 - Angle closure likely, VH grade 1 Ref:Basic ophthalmology -Jogi-4th edition page no:281
Category:
Ophthalmology
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