To characterize structural changes of HCQ retinopathy with SD-OCT after drug cessation. Setting: Private practice and academic institution. Patient Population: Patients at New England Eye Center and Ophthalmic Consultants of Boston in Boston, MA diagnosed with HCQ retinopathy and followed after drug cessation. Retinal thinning in plaquenil toxicity Hydroxychloroquine and reduction of metastasis Evaluation while on hydroxychloroquine There is no single best test for detecting hydroxychloroquine toxicity. However, SD-OCT and VF are good screening tests, and FAF and mfERG can help confirm a diagnosis of suspected retinal toxicity from hydroxychloroquine. Early detection of toxicity is critical to prevent permanent visual loss. 1. Jorge A, Ung C, Young L, Melles RB, Choi HK. Bull’s Eye Retinopathy Early macular toxicity can cause stippling or mottling of the RPE Next, granular pigmentation and loss of the normal foveal reflex can occur It’s believed but not proven that if early macular changes are detected and the medication is stopped, any toxicity that has occurred can be reversed.1 If the maculopathy continues to progress, concentric zones of. Hydroxychloroquine, sold under the brand name Plaquenil Sanofi-Aventis, is an antimalarial drug that has gained widespread use in treating various autoimmune diseases, including systemic lupus erythematosus and rheumatoid arthritis. 1 By some estimates, more than 150,000 patients are on long-term therapy with this medication in America alone. 2 Retinal toxicity associated with HCQ use is. Main Outcome Measures: SD-OCT findings suggestive of HCQ retinopathy before parafoveal ellipsoid disruption. Retrospective clinical data review by the Boston Image Reading Center. Plaquenil toxicity macular oct Retinal Physician - Hydroxychloroquine Maculopathy An Update., Early Plaquenil Toxicity Detected without Bull’s Eye. Chloroquine resistant malaria haitiPlaquenil method of actionHydroxychloroquine 25mg This article is from June 2011 and may contain outdated material. Download PDF. Many systemic medications may cause retinal toxicity. One such commonly used medication for dermatologic and rheumatologic inflammatory conditions is hydroxychloroquine Plaquenil, a chloroquine derivative. Hydroxychloroquine-Induced Retinal Toxicity - American.. Multimodal Imaging in Plaquenil Toxicity. Hydroxychloroquine Plaquenil Toxicity and.. Developing toxicity than daily dose/kilogram which older literature focused upon19 Research has shown that the risk of toxicity begins to increase sharply towards 1% after approximately 5 to 7 years of use19 A cumulative dose that increases the risk of retinal toxicity • 1000g total Hydroxychloroquine HCQ The drug is usually discontinued at the earliest sign of macular damage since vision loss is usually permanent and can even progress after stopping it. OCT scan top of normal macula compared to Plaquenil Toxicity bottom with loss of the outer retinal tissue around the macular center red boxes Hydroxychloroquine Macular Toxicity. Hydroxychloroquine is an immunomodulating drug that is commonly used in treating collagen vascular diseases such as rheumatoid arthritis and systemic lupus erythematosus. It has the serious side effect that it can cause irreversible macular damage when used in toxic doses over enough time.