Retinitis refers to the inflammation of the retina as a result of either a genetic disorder or an infectious disease. Genetic disorders are often due to an underlying defect in one of the 50 genes that are necessary for the proper creation of photoreceptor proteins.  Progression may therefore be defined by the rate of cellular breakdown of cone and rod cells. Further progression is defined by the degradation of pigment epithelium as well as retinal vessel attenuation and dysfunction of the optic nerve. Infectious diseases may also be responsible for retinitis, as bacterial and viral infections may result in scarring and lesions across the retinal tissue.
Retinitis pathophysiology
Diabetic retinopathy pathophysiology
Glaucoma pathophysiology
Uveitis pathophysiology
Acute retinal necrosis pathophysiology
Retinitis imaging findings
Retinitis risk factors
Retinitis classification