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Lawrence Tychsen, Nicholas Faron, James Hoekel; Outcomes of pediatric photorefractive keratectomy for correction of pseudophakic myopia. Invest. Ophthalmol. Vis. Sci. 2015;56(7 ):3933.
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© ARVO (1962-2015); The Authors (2016-present)
Children who have implantation of a standard, posterior chamber IOL at younger ages commonly develop pseudophakic myopia as axial length increases with growth. As an alternative to IOL exchange surgery, we report here outcomes of PRK in children who had pseudophakic myopia and difficulty wearing spectacles or contact lenses.
Clinical outcome data were collated prospectively in 7 children (8 eyes). Each child was amblyopic, and had undergone cataract surgery with implantation of a pc IOL. Mean IOL power was 20.83D. The mean age at IOL implantation was 5.76 yrs (range 1-11) and PRK 12.4 yrs (range 7-19). The mean follow-up from the IOL implantation was 11.7yrs.
Pseudophakic refractive error prior to PRK averaged -5.04D (range -2 to -8.25D). 2 years after laser treatment, each child was within ±0.5D of target value. Refractive spherical regression averaged -0.10D/yr. Uncorrected visual acuity improved from an average logMAR 0.9 (20/159) to 0.17 (20/30); best corrected visual acuity improved an average of 0.22 logMAR. 5/7 children treated had a gain in at least one level of binocular fusion; the remaining 2 remained at their preoperative level. No patient developed haze following PRK.
Our preliminary results show excimer laser PRK is an effective means for correcting refractive error and improving uncorrected visual acuity in pseudophakic amblyopic children.
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