ArticleInternational journal of ophthalmology2025
Ocular biometric parameters associated with the performance of actual near-add power in multifocal intraocular lenses.
Article in International journal of ophthalmology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
aimTo evaluate the influence of ocular biometric parameters on the performance of actual near-add power in the spectacle plane of multifocal intraocular lenses (MIOLs).
methodsThis retrospective study defined prediction error (PE) as the difference between actual postoperative near-add power and manufacturer-predicted values. Linear regression assessed PE correlations with axial length (AL), mean keratometry (K), pupil size, anterior chamber depth (ACD), lens thickness (LT), ACD+0.5×LT, and back-calculated IOL power. Differences in PE across MIOLs types, AL, K, pupil size, ACD, LT, ACD+0.5×LT, and back-calculated IOL power groups were compared.
resultsTotally 250 eyes of 250 patients (116 males and 134 females, mean age 56.22±12.31y) who underwent phacoemulsification with MIOL implantation were reviewed. PE showed no significant correlation with most parameters but had a weak positive correlation with LT. The mean predicted error (MPE) in the AL≤22, 26-27, and 27-28 mm groups were 0.83 (0.51, 1.01) D, 0.78 (0.51, 1.07) D, and 0.72 (0.57, 0.94) D respectively (
conclusionAlthough there is no significant linear relationship between near-add power and most ocular biometry parameters, and specific segments of AL, K, LT, and IOL power have a significant impact on the near-add power of MIOLs. These factors should be taken into account in preoperative evaluations.
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