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Ju Byung Chae, Tae Hwan Moon, Jae-hyung Kim; Changes of accommodative power in vitrectomized eyes with crystalline lenses without presbyopia. Invest. Ophthalmol. Vis. Sci. 2014;55(13):3780.
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To evaluate changes of accommodative power in phakic eyes after uneventful pars plana vitrectomy in patients <45 years old without presbyopia.
We investigated patients aged <45 years who had undergone pars plana vitrectomy without crystalline lens extraction due to vitreo-retinal disorders. Six and 12 weeks after vitrectomy, the near point of accommodation (NPA), refractive error, cataract grading using LOCS III, and anterior chamber depth (ACD) using partial coherence interferometry (ALscan, Nidek) of vitrectomized and contralateral non-vitrectomized eyes were examined.
Fifteen eyes of 15 patients were included. Average [Mean±SD] patient age was 39.8 ± 4.3 years. None experienced crystalline lens damage during vitrectomy, and none experienced cataract progression in the vitrectomized eye for up to 12 weeks. NPA was significantly lower in the vitrectomized eye than in the opposite eye at 6 weeks (4.8 ± 0.9 diopters (D) vs. 5.6 ± 1.5 D, P < 0.05, Wilcoxon signed ranked test) and 12 weeks (5.5 ± 1.5 D vs. 6.1 ± 2.1 D, P < 0.05, Wilcoxon signed ranked test) after vitrectomy. At 12 weeks, however, anterior chamber depth was similar to that observed preoperatively.
Uneventful vitrectomy in relatively young patients without presbyopia could reduce accommodative power during the early postoperative period with no cataract progression.
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