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. Is hydroxychloroquine sulphate a steroid Mechanism of action of hydroxychloroquine Plaquenil visual field coding Baseline visual field and SD OCT are recommended if abnormalities are present e.g. macular lesions, glaucoma, etc that could affect screening tests. Annual Screening The risk of toxicity is rare in the first several years of treatment with HCQ and CQ. For years, eye doctors have relied on threshold visual field testing to detect functional vision changes with plaquenil use, rarely finding any signs of toxicity except in advanced cases where vision symptoms are already manifest. For women, start with 100 pounds, and add 5 pounds for every inch over 5 feet. For men, start with 106 pounds, and add 6 pounds for every inch over 5 feet. The maximum dose of Plaquenil is 6.5 mg/kg of ideal body weight per day, regardless of whether a person is overweight, underweight, or normal weight. 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 visual field testing Plaquenil and failed vision test? -, Plaquenil-Induced Toxic Maculopathy - Decision-Maker PLUS Chloroquine phosphate 250 mg side effectsChloroquine diphosphate packagingHydroxychloroquine plaquenil for malaria protectionHow to get chloroquine Methods of visual field testing Confrontation Visual Fields Estimates the patient’s visual field limits as compared to the clinician’s field Helpful in picking up gross defects such as hemianopsia, quadrantanopsia, or altitudinal loss Typically part of the basic patient workup 17 Amsler Grid Used by the patient to self-monitor changes in the central 10° of the visual field Understanding Visual Field Testing NCEyes June 2018. Protecting your eyesight when taking Plaquenil Lupus.. New Plaquenil Guidelines -. Central threshold automated visual fields with a white target • Subtle, repeatable visual field defectsshould be taken seriously and are an indication to do objective testing At least one of the following objective tests should be performed during routine screening if available19 Plaquenil hydroxychloroquine is in a class of drugs called disease-modifying anti-rheumatic drugs, which are used to decrease inflammation, pain and joint damage. While today it is used to treat autoimmune conditions, such as rheumatoid arthritis and lupus, it was originally used as an anti-malaria drug. Visual field testing actually maps the visual fields to detect any early or late signs of glaucomatous damage to the optic nerve. In order to find and follow glaucoma, visual fields are measured by a computer one eye at a time. One eye is covered and the patient places his or her chin in a type of bowl.