18 Posterior Segment
Jeffrey D. Perotti, M.S., O.D.
We know that you’ve had limited exposure to posterior segment disease in V680. As a result, we’ll mostly ask you to describe lesions that you find in the posterior segment, and to venture a guess as to what they are. You can describe lesions by specifying size, color, elevation, location using clock positions for peripheral findings (black and white scar @ 6; 1/2 disc diameter in size, flat) or anatomical location in posterior pole (single yellow deposit superior to macula within arcades). However, as you progress from V786 to V789, we expect that you become more proficient in posterior segment findings and management.
Clean your lenses
Dirty 20D and 78D/90D can significantly impact your views. Clean your lenses as appropriate.
In extreme cases, you can use a 3-mirror gonio lens to keep lids open during a posterior pole evaluation.