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. Plaquenil and edema Primaquine chloroquine dosage This test can help find if blind spots have developed in your field of vision. OCT imaging This test makes a detailed, three-dimensional image of your eye. Your ophthalmologist can use this image to look for early retinal damage. Multifocal ERG This test looks at cells in the retina called rods and cones. The test measures how well these. Nov 18, 2011 The 10-2 white test was felt by the authors to be the most reproducible and easiest to interpret. Although visual field defects in HCQ toxicity can be highly variable in terms of the depth of defect, all our patients showed a similar pattern on 10-2 white, with the same areas affected. Or, the visual field could just be patchy all over. If these errors are not too bad, the general gist of the field can be deduced, especially if compared to prior fields. Most often, as long as everything else is stable IOP, ONH appearance, we just reorder these fields in a few month’s time. 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 screening Hydroxychloroquine toxicity - EyeWiki, Humphrey visual field findings in hydroxychloroquine toxicity Plaquenil side effects dry skin Feb 19, 2020 In patients of Asian descent, it is recommended that visual field testing be performed in the central 24 degrees instead of the central 10 degrees. It is recommended that hydroxychloroquine be discontinued if ocular toxicity is suspected and the patient should be closely observed given that retinal changes and visual disturbances may progress even after cessation of therapy. Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects.. How to interpret visual fields 5 most common patterns - EyeGuru. Hydroxychloroquine Plaquenil Toxicity and.. 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. Visual fields. In early cases of Plaquenil toxicity, an early indicator of damage is the appearance of a paracentral scotoma seen on automated visual field testing in the absence of fundus changes. 18 Each of the testing strategies can be used to detect early toxicity changes, but the presentation of the visual field effects will vary. Due to. During the annual screening assessment you will have a test called a visual field test. In this test, one eye is tested at a time while the other is temporarily covered with a patch.