期刊
EYE & CONTACT LENS-SCIENCE AND CLINICAL PRACTICE
卷 44, 期 -, 页码 S131-S137出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/ICL.0000000000000355
关键词
Multifocal contact lenses; Optical aberrations; Vision; Center-distance design; Center-near design
资金
- Portuguese Fundacao para a Ciencia e Tecnologia through the European Social Fund [PTDC/SAU-BEB/098392/2008, PTDC/SAU-BEB/098391/2008, UID/FIS/04650/2013]
- Fundação para a Ciência e a Tecnologia [PTDC/SAU-BEB/098391/2008, PTDC/SAU-BEB/098392/2008] Funding Source: FCT
Purpose: To evaluate the combined effects of inherent ocular aberrations and induced aberrations with a multifocal soft contact lens (MFCL) after 15 days of lens wear in presbyopic participants and their influence on visual performance at distance and near under high and low contrast conditions. Methods: Forty presbyopic participants (mean age, 48.7 +/- 3.4) presenting a mean addition of 1.53 +/- 0.58 D were fitted with Biofinity Multifocal (CooperVision) and included in the study. Measurements comprised distance and near monocular high (100%) and low contrast (10%) logMAR visual acuity (VA). Ocular aberrations were obtained with Hartmann-Shack aberrometer (IRX3, Imagine Eyes) and analyzed for 2 mm and maximum round natural pupil. Results: Distance VA was significantly higher in dominant eye, whereas near VA was significantly better in the non-dominant eye (P<0.05 in all conditions). For a 2-mm pupil in the dominant eye fitted with MFCL, spherical-like aberration significantly increased (P=0.027) so as higher-order aberrations (HOA) (P=0.002). A significant increase was also observed in spherical-like aberrations (P=0.001), coma-like aberrations (P=0.006) and HOA (P=0.004) in non-dominant eye. For the maximum round natural pupil size, a significant decrease in vertical coma was observed (P=0.018) in dominant eye, whereas a significant increase in spherical-like (P<0.001) and coma- like aberrations (P<0.007) was observed in non-dominant eye. A negative significant correlation was found between vertical coma and high contrast VA (Rho=-0.405, P=0.011) in dominant eye; whereas in non-dominant eye, a significant correlation was found between induced secondary astigmatism and distance VA under high (Rho=0.556, P<0.001) and low contrast (Rho=0.448, P=0.005). Conclusions: On-eye visual performance of MFSCL is dependent on the high-order aberrations induced by dominant and non-dominant design coupled with the wearer's inherent aberrations.
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