If a patient is legally blind and on hydroxychloroquine, do you still recommend follow up with ophthalmology to monitor for hydroxychloroquine retinal toxicity?  

A patient who is legally blind but taking hydroxychloroquine absolutely needs to be monitored by an ophthalmologist. The usual definition of legal blindness in the United States is vision no better than 20/200 in the better-seeing eye. But 20/200 is far better than say counting fingers (the ability ...