Abstract
Proliferative vitreoretinopathy (PVR) has been mitigated by intravitreal methotrexate (MTX) 400 μg/0.1 mL in several studies. Here, we evaluate the results from a lower dose of MTX, 200 μg/0.05 mL. We identified and reviewed records of patients with grade ≥C1 PVR who were treated with 200 μg/0.05 mL MTX injections: during PVR surgery and every 2 weeks thereafter. Twenty-four eyes met inclusion criteria with a mean of 5.6 injections and follow-up ranging 6 to 56 months. The retina was reattached in 19 of 24 eyes (79%) after a single surgery and in 5 of 24 eyes (21%) after one additional PVR surgery. Visual acuity improved from baseline logMAR 1.63 to 0.97 at 12 months (P < .001), with 5 of 20 achieving 20/60 or better and 16 of 20 achieving 20/200 or better. One eye developed a transient corneal abrasion that resolved within 1 week. Low-dose MTX (200 μg/0.05 mL) during and after PVR surgery resulted in good rates of retinal reattachment and visual acuity recovery. [Ophthalmic Surg Lasers Imaging Retina 2023;54(3):139-146.].
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