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. Expired chloroquine Chloroquine injection route Plaquenil during pregnancy lupus Does plaquenil cause heartburn Apr 20, 2011 Although the incidence of macular toxicity is infrequent with Plaquenil use at a dosage of 200mg or 400mg q.d. its visual impact can be devastating. 2,3. The associated classic retinal toxicity is described as a bull’s eye maculopathy ring of depigmented retinal pigment epithelium that spares the foveal area. It is crucial to detect retinal toxicity induced by HCQ early and take necessary actions before it results in permanent visual loss. In our study, we demonstrated HCQ-induced retinal toxicity at an earlier stage through the measurement of RGC-IPL thickness by using SD-OCT, which is an easy-to-use and non- invasive method. SD-OCT showed loss of the parafoveal inner/outer segment junction, thinning of the parafoveal outer nuclear layer, and a loss of the normal foveal depression, which is characteristic for hydroxychloroquine retinal toxicity Figure 3. 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 in macular oct Protecting your eyesight when taking Plaquenil Lupus., A New Objective Parameter in Hydroxychloroquine-Induced. Prescribing hydroxychloroquine for raPlaquenil make toungue Jan 05, 2020 Kidney and liver disease predispose to hydroxychloroquine toxicity due to impaired clearance of the drug. Old age is hypothesized to contribute to overall risk due to the natural aging process of the retinal pigment epithelium RPE, causing the RPE to be more sensitive to toxic drugs. Hydroxychloroquine toxicity - EyeWiki. Hydroxychloroquine Plaquenil Toxicity and Recommendations.. How to Succeed in Plaquenil Screenings. In obvious toxicity, the nasal inner subfield showed more thinning than the temporal inner subfield at 12 months after drug cessation p = 0.018, 95 % CI −1 to −8 μm. Conclusions Once HCQ retinopathy is diagnosed and the medication is discontinued, structural retinal changes commonly occur. Upon further testing with an OCT scan through the macula, you can clearly see the parafoveal outer retinal atrophy, as seen below Humphrey Visual Field 10-2 Testing demonstrates a paracentral scotoma which is consistent with this macular toxicity that occurs with Plaquenil Discussion. A risk factor for Plaquenil hydroxychloroquine retinotoxicity is a daily dose that exceeds 5.0 mg of drug per kg of body weight. The tool on the right simply calculates this threshold based on a patient’s real body weight. It’s important to understand that the daily dose is only one risk factor for plaquenil retinotoxicity.