| One of the most common presenting
symptom in ophthalmology I red eye. It is the manifesting sign of
many ocular diseases; can be acute or chronic, mild or severe, unilateral
or bilateral. The etiology can be infectious, allergic, autoimmune,
inflammatory or traumatic (probably most common). Pathologies of each
of the orbit, eyelid, conjunctiva, cornea, sclera, episcleral and
even the posterior uveal tract can all manifest as a red eye |