Plaquenil visual field red stimulus

Discussion in 'Chloroquine' started by OMvitamin-D, 03-Mar-2020.

  1. Nat Well-Known Member

    Plaquenil visual field red stimulus

    A, At the start of hydroxychloroquine sulfate treatment. B, Two years after starting treatment, a right paracentral scotoma appeared.

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    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. However, one needs to look carefully for subtle decreases in threshold in the area at risk 2–6 degrees from center. It is important that eye care providers are familiar with the patterns on HVF that indicate toxicity partial or complete ring defect between 2-6 degrees with central sparing on 10-2 white tests; central scotoma affecting one or more of the 4 points around fixation on 24-2 testing more evident on deviation plots; or more diffuse central or paracentral defect on 10-2 red visual field testing. Three consecutive 10–2 visual fields with a red target in a patient taking hydroxychloroquine at toxic doses who developed retinopathy. Figure 4 mfERG of a patient taking hydroxychloroquine at toxic doses who developed retinopathy.

    Morand EFMc Cloud PILittlejohn GO Continuation of long term treatment with hydroxychloroquine in systemic lupus erythematosus and rheumatoid arthritis. C, Three years after cessation of treatment, the scotoma regressed.

    Plaquenil visual field red stimulus

    Value of Red Targets and Pattern Deviation Plots in Visual., Humphrey Visual Field Findings in Hydroxychloroquine Toxicity

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  4. Visual Fields Early toxicity can cause bilateral relative paracentral scotomas. 4 Defects can be present BEFORE definitive signs are seen on fundus examination. Some experts suggest using a red stimulus or blue-yellow perimetry for early detection of retinopathy. 5

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    This 10-2 visual field VF was done with the III, red stimulus using the FASTPAC protocol. The field is normal, and illustrates several points to consider in interpreting such VFs. The test took 6 minutes, 47 seconds red arrow. The gray scale commonly shows dark areas particularly near the edge of the visual field that are not worrisome. The AAO recommends that all patients beginning hydroxychloroquine therapy have a baseline evaluation, including a complete dilated examination and visual field test Amsler grid or Humphrey 10-2 perimetry. Other testing, such as color vision and fundus photography, is optional. How do I run visual fields? Visual field instruments are kept in dim spaces, and testing is run in dim illumination. Bright light exposure for too long can throw off the calibration of the field, so avoid it if you can. Bowl-based perimetries require the patient to be patched.

  5. -Smoke- Moderator

    Some side effects may occur that usually do not need medical attention. Hydroxychloroquine Oral Route Side Effects - Mayo Clinic Plaquenil Hydroxychloroquine Side Effects and Adverse. Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects.
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  7. mixxxon XenForo Moderator

    Safety of hydroxychloroquine in pregnant patients with connective. Safety of hydroxychloroquine in pregnant patients with connective tissue diseases a study of one hundred thirty-three cases compared with a control group. Costedoat-Chalumeau N1, Amoura Z, Duhaut P, Huong DL, Sebbough D, Wechsler B, Vauthier D, Denjoy I, Lupoglazoff JM, Piette JC.

    Hydroxychloroquine Plaquenil Side Effects & Dosage for.