The American Academy of Ophthalmology released an updated set of screening recommendations for hydroxychloroquine (Plaquenil) and chloroquine to account for the many studies that have shown the effects of these medications on the retina (1). It succinctly makes the case for screening, and outlines the evidence for screening methods and parameters to know for screening.
As you can probably tell, I'm starting to skip around a little bit while I put together these OKAP review articles. I have a fairly large list of topics to cover, but hopefully these will all be helpful pieces of information. I decided to skip to aniridia, because it is one of those conditions that seems to be very popular in practice questions.
The modified Airlie House classification has been used to classify nonproliferative diabetic retinopathy (NPDR) since the Diabetic Retinopathy Study (DRS) and Early Treatment Diabetic Retinopathy Study (ETDRS). (1-3) Since this classification determines management of nonproliferative diabetic retinopathy, it is extremely important to know these criteria. This classification has been further refined by Wilkinson et al for international use and was adopted as part of the AAO's Preferred Practice Pattern for Diabetic Retinopathy. (4,5)