The main difference between conjunctivitis and uveitis is the layer of the eye that each condition affects. Conjunctivitis, also known as pink eye, affects the outer layer, while uveitis affects the middle layer.
The causes can also vary. While uveitis may be the result of inflammation associated with an autoimmune disorder, conjunctivitis is typically the result of a bacterial, viral, or fungal infection. It may also occur due to an irritant or allergen getting into the eye.
While both can cause red, irritated eyes, conjunctivitis often does not cause vision issues. However, a person may experience watery eyes, a feeling that something is stuck in the eye, discharge, and irritation of the eye.