Do i need to see a ophthalmologist if i think i have aniscoria or can a gp easily tell?

Primary Care is good: Great question! Your primary care provider is able to do most general eye exams (diagnose conjunctivitis, cataracts, corneal abrasions etc) and aniscoria. You could also screen for this yourself by taking a photo of your eyes and compare the pupil size. (as long as you have equal lighting on both eyes - if the light on each eye is different you will have a false positive test). If + see your Dr.