AIDS: Visual manifestations of HIV infection and AIDS can present in a variety of ways. Different types of ocular infections are classified and factors that affect diagnosis and treatment are explained. Complications to the eyelids and anterior and posterior parts of the eye are addressed. Steps to determine the presence of ophthalmic herpes, Kaposi's sarcoma (KS), syphilis, conjunctivitis, and CMV retinitis are given. Cytomegalovirus and toxoplasmosis infections, and diseases that effect the retina and cause blindness are discussed.