Total meibomian gland loss in Parkinson's disease.

Parkinson's disease is characterized by motor dysfunction, affecting blink frequency in the eyes. Reduced blinking and use of anticholinergic medications result in dry eye disease (DED) in these patients. This unique case had complete meibomian gland loss seen on meibography with reduced blinking and lacrimal gland function as well attributed to Parkinson's and its treatment. The autoimmune workup was negative, and the final diagnosis of drug-induced DED was made. The patient was managed with ocular lubricants and anti-inflammatory eye drops.