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  • Title: Effect of Combined Atropine and Patching vs Patching Alone for Treatment of Severe Amblyopia in Children Aged 3 to 12 Years: A Randomized Clinical Trial.
    Author: Wang S, Wen W, Zhu W, Liu Y, Zou L, Tian T, Lin J, Liu R, Liu H.
    Journal: JAMA Ophthalmol; 2021 Sep 01; 139(9):990-996. PubMed ID: 34264296.
    Abstract:
    IMPORTANCE: Patching is often less effective for severe amblyopia because of poor adherence. For the treatment of severe amblyopia, although combined atropine and patching therapy (CAPT) has been found to be efficacious, it is currently unknown whether CAPT is more efficacious than patching alone. OBJECTIVE: To compare the efficacy of CAPT vs patching alone in children aged 3 to 12 years with severe amblyopia. DESIGN, SETTING, AND PARTICIPANTS: This single-center randomized clinical trial was conducted from November 2018 to May 2020. The visual acuity (VA) examiner was masked to the treatment groups. The follow-up visits were at 3 months and 6 months. Participants aged 3 to 12 years with severe amblyopia (20/100 to 20/500) resulting from strabismus, anisometropia, or both were randomly assigned to CAPT or patching therapy. INTERVENTIONS: CAPT or patching alone for 6 months. MAIN OUTCOMES AND MEASURES: Change of the amblyopic eye VA from baseline to 6 months. RESULTS: Among 108 participants, the mean (SD) age was 5.2 (1.8) years, and 54 (50%) were female. Overall, 53 participants (49%) were randomized to CAPT and 55 (51%) were randomized to patching therapy. At baseline, the mean (SD) amblyopic eye VA was 0.95 (0.22) logMAR (approximately 20/200 [2.2 lines]). At 6 months, the CAPT group's mean improvement in amblyopic eye VA was 0.72 logMAR (7.2 lines) compared with 0.58 logMAR (5.8 lines) in the patching alone group (difference, 0.14 logMAR [1.4 lines] greater in the CAPT group; 95% CI, 0.05-0.22 logMAR [0.5-2.2 lines]; P = .002). The amblyopic eye VA improvement in the CAPT group also was greater than that in the patching alone group at 3 months (difference in the means, 0.13 logMAR [1.3 lines]; 95% CI, 0.04-0.22 logMAR [0.4-2.2 lines]; P = .004). No participants were withdrawn because of adverse effects. CONCLUSIONS AND RELEVANCE: CAPT resulted in more mean improvement of amblyopic eye VA than patching alone among participants enrolled in this trial, although the clinical relevance of this relatively small VA difference cannot be determined from this trial. TRIAL REGISTRATION: Chinese Clinical Trial Registry Identifier: ChiCTR1800018663.
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