Eye-“itis:” differences between keratitis, episcleritis, scleritis, and uveitis

The eye-“itis”es can be pretty confusing for those of us who don’t regularly use an ophthalmoscope to visualize changes in blood vessels, free-floating cells, deposits, and detritus. (The last time an internal medicine resident diagnosed uveitis on slit lamp/fundoscopy was…? Sorry to my ophtho friends.) Here are some slides I made to help distinguish the “itis”es (organized from anterior to posterior):

***N.B.: One important cause of “red eye” not discussed here is ACUTE ANGLE CLOSURE GLAUCOMA. Conjunctivitis is also not discussed.

Screen Shot 2018-07-06 at 5.06.48 PM.png

Screen Shot 2018-07-06 at 4.58.18 PM.png

Screen Shot 2018-07-06 at 5.07.23 PM.png

Screen Shot 2018-07-06 at 4.58.34 PM.png