von Hippel-Lindau disease (angiomatosis of the retina and cerebellum).

von Hippel-Lindau disease is a multi-system disorder characterized by hemangioblastic lesions of the central nervous system and visceral organs. Angiomatosis retinae is often the first observable manifestation of von Hippel-Lindau disease. Optometry may be the initial point of entry into the health care system for the von Hippel-Lindau patient.

Branhamella keratoconjunctivitis.

A young male complained of monocular diplopia for over a year. Ophthalmic evaluation revealed gross corneal pannus in both eyes and clinical findings precipitated treatment for chronic chlamydial eye disease. The definitive pathogen isolated from both eyes was Branhamella catarrhalis.

Acanthamoeba dendriform keratitis.

A soft contact lens patient complained of persistent redness, blurry vision and photophobia of the right eye. Both tap water and distilled water were used in his contact lens care regimen. Atypical corneal epithelial dendriform patterns were noted and the patient was treated for presumed herpes simplex keratitis and corneal erosion.

Ocular hemorrhages in thrombocytopenia.

Thrombocytopenia is a deficiency in circulating platelets. Abnormal ocular bleeding can result when thrombocytopenia is severe. Two cases of ocular hemorrhage attributed to thrombocytopenia are presented.