Plaquenil, also known as hydroxychloroquine, is a medication used in the treatment or prevention of malaria. It has also been used to treat other conditions, such as liver disease, that may have been caused by the same parasites that cause malaria. Plaquenil has also been used to treat the symptoms of arthritis, lupus and dermatologic conditions.
Plaquenil can prove toxic to the retina, threatening the vision. Regular eye examinations are essential for those patients taking plaquenil because over time the retina can become damaged beyond repair. Regular medical monitoring is the only way to ensure that toxicity is not occurring. The drug accumulates within the retina and can remain there long after drug use has been discontinued.
Before beginning treatment with plaquenil, the doctor will perform a baseline eye examination and the following tests: Dilated Retinal Examination, Retinal Photography, Visual Field Test, OCT.
The risk of developing retinopathy increases with the length of time plaquenil has been taken and the dosage prescribed.
