Pattern of Retinopathy: Although the locus of toxic damage is parafoveal in many eyes, Asian patients often show an extramacular pattern of damage. Dose: We recommend a maximum daily HCQ use of 5.0 mg/kg real weight, which correlates better with risk than ideal weight. Hydroxychloroquine sulfate molecular weight Plaquenil months Background/Aims Hydroxychloroquine HCQ retinopathy may result in severe and irreversible vision loss, emphasising the importance of screening and early detection. The purpose of this study is to report the novel finding of early optical coherence tomography OCT abnormalities due to HCQ toxicity that may develop in the setting of normal Humphrey visual field HVF testing. Methods Data from. This article is from June 2011 and may contain outdated material.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. To detect chloroquine toxicity, the American Academy of Ophthalmology recommends performing fundus examinations, 10-2 automated visual fields, and at least one objective test multifocal electroretinography mfERG, fundus autofluorescence imaging, or spectraldomain optical coherence tomography SD-OCT. 1 By contrast, Amsler grid testing. Risk of Toxicity: The risk of toxicity is dependent on daily dose and duration of use. There are no similar demographic data for CQ, but dose comparisons in older literature suggest using 2.3 mg/kg real weight. Plaquenil retnopathy oct Hydroxychloroquine Plaquenil Toxicity and Recommendations., Hydroxychloroquine-Induced Retinal Toxicity - American. Plaquenil tylenol And screening for hydroxychloroquine retinopathy should be given to all patients. GPP All patients should undergo 10-2 Humphrey visual fields testing using a white stimulus, followed by pupillary dilation and imaging with both spectral domain optical coherence tomography SD-OCT and widefield fundus autofluorescence FAF. B Hydroxychloroquine and Chloroquine Retinopathy.. Retina Today - Evaluating Hydroxychloroquine Toxicity With.. Hydroxychloroquine toxicity - EyeWiki. To report expanded SD-OCT findings of HCQ retinopathy that may assist the clinician in earlier diagnosis. 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. Hydroxychloroquine Retinopathy with SD-OCT Changes and Minimal Fundus Changes. The images shown here refer to the same case as "Hydroxychloroquine Retinopathy with Minimal Fundus Changes". This 68 year old woman with systemic lupus erythematosus had been on hydroxychloroquine at a dosage of 400 mg/d 6.52 mg/kg/d for eight years. Abstract. Background The American Academy of Ophthalmology recommendations on screening for chloroquine CQ and hydroxychloroquine HCQ retinopathy are revised in light of new information about the prevalence of toxicity, risk factors, fundus distribution, and effectiveness of screening tools.