Emily Wiecek1, James D Akula2, Deborah K Vanderveen2, Iason S Mantagos2, Carolyn Wu2, Amber-Lee Curran3, Hanna De Bruyn3, Bridget Peterson3, Anne B Fulton2. 1. From Boston Children's Hospital (E.W., J.A., D.V., I.M., C.W., A-L.C., H.D., B.P., A.F.), Boston, Massachusetts, USA; Harvard Medical School (E.W., J.A., D.V., I.M., C.W., A.F.), Boston, Massachusetts, USA. Electronic address: emily.wiecek@childrens.harvard.edu. 2. From Boston Children's Hospital (E.W., J.A., D.V., I.M., C.W., A-L.C., H.D., B.P., A.F.), Boston, Massachusetts, USA; Harvard Medical School (E.W., J.A., D.V., I.M., C.W., A.F.), Boston, Massachusetts, USA. 3. From Boston Children's Hospital (E.W., J.A., D.V., I.M., C.W., A-L.C., H.D., B.P., A.F.), Boston, Massachusetts, USA.
Abstract
PURPOSE: To compare progression of myopia and refractive error in former premature infants with retinopathy of prematurity (ROP) treated using intravitreal bevacizumab (IVB) or laser. DESIGN: Retrospective clinical cohort study. METHODS: We identified premature infants with ROP treated using IVB from 2011 to 2020 and compared their longitudinal cycloplegic refraction data to that of infants with ROP treated using laser during the same timeframe. A subset of infants treated using IVB also underwent additional treatment using laser. We included cycloplegic refractions from 789 cumulative visits over a median 3.2 years. We used a linear mixed-effects model with a log decay function to evaluate how refraction changed with age after treatment. RESULTS: In aggregate, the model estimated a significant (P < .001) trend in refraction-from slight hyperopia to relatively more myopic states. However, progression in laser-treated eyes was significantly (P < .001) more rapid, regardless of treatment with IVB. The number of laser spots resulted in increased myopic progression by approximately 0.16 diopters per 100 laser spots. Both ROP stage and zone had a significant effect on myopic progression, with more severe disease resulting in faster myopic progression. Random effects, including individual subject variation with nested variance for left and right eye, accounted for 86.4% of the remaining variance not explained by age and treatment. CONCLUSIONS: Laser treatment for severe ROP increases the trend to severe myopia. In our sample, IVB did not affect myopic progression but did substantially reduce the amount of consequent laser required to treat ROP. The effect of laser persists after accounting for differences in ROP stage and zone.
PURPOSE: To compare progression of myopia and refractive error in former premature infants with retinopathy of prematurity (ROP) treated using intravitreal bevacizumab (IVB) or laser. DESIGN: Retrospective clinical cohort study. METHODS: We identified premature infants with ROP treated using IVB from 2011 to 2020 and compared their longitudinal cycloplegic refraction data to that of infants with ROP treated using laser during the same timeframe. A subset of infants treated using IVB also underwent additional treatment using laser. We included cycloplegic refractions from 789 cumulative visits over a median 3.2 years. We used a linear mixed-effects model with a log decay function to evaluate how refraction changed with age after treatment. RESULTS: In aggregate, the model estimated a significant (P < .001) trend in refraction-from slight hyperopia to relatively more myopic states. However, progression in laser-treated eyes was significantly (P < .001) more rapid, regardless of treatment with IVB. The number of laser spots resulted in increased myopic progression by approximately 0.16 diopters per 100 laser spots. Both ROP stage and zone had a significant effect on myopic progression, with more severe disease resulting in faster myopic progression. Random effects, including individual subject variation with nested variance for left and right eye, accounted for 86.4% of the remaining variance not explained by age and treatment. CONCLUSIONS: Laser treatment for severe ROP increases the trend to severe myopia. In our sample, IVB did not affect myopic progression but did substantially reduce the amount of consequent laser required to treat ROP. The effect of laser persists after accounting for differences in ROP stage and zone.
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