Lopes-Ferreira Daniela, Fernandes Paulo, Queirós António, González-Meijome José M
Clinical and Experimental Optometry Research Laboratory (CEORLab), Department of Physics (Optometry), School of Sciences, University of Minho, Gualtar, Braga, Portugal.
Eye Contact Lens. 2018 Sep;44 Suppl 1:S131-S137. doi: 10.1097/ICL.0000000000000355.
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.
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.
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).
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.
评估老花眼参与者佩戴多焦点软性接触镜（MFCL）15天后，固有眼像差和诱导像差的综合影响，以及它们在高对比度和低对比度条件下对远视力和近视力视觉表现的影响。
40名老花眼参与者（平均年龄48.7±3.4岁），平均附加度数为1.53±0.58 D，佩戴Biofinity Multifocal（库博光学）镜片并纳入研究。测量包括远视力和近视力单眼高对比度（100%）和低对比度（10%）的对数视力（VA）。使用哈特曼-夏克像差仪（IRX3，Imagine Eyes）获取眼像差，并对2毫米和最大圆形自然瞳孔进行分析。
优势眼的远视力显著更高，而非优势眼的近视力显著更好（在所有条件下P<0.05）。对于佩戴MFCL的优势眼2毫米瞳孔，类球差显著增加（P=0.027），高阶像差（HOA）也显著增加（P=0.002）。非优势眼的类球差（P=0.001）、类彗差（P=0.006）和HOA（P=0.004）也有显著增加。对于最大圆形自然瞳孔大小，优势眼的垂直彗差显著降低（P=0.018），而非优势眼的类球差（P<0.001）和类彗差（P=0.007）显著增加。优势眼的垂直彗差与高对比度VA之间存在显著负相关（Rho=-0.405，P=0.011）；而在非优势眼中，诱导性继发性散光与高对比度（Rho=0.556，P<0.001）和低对比度（Rho=0.448，P=0.005）下的远视力之间存在显著相关性。
MFSCL的眼视觉表现取决于优势眼和非优势眼设计诱导的高阶像差以及佩戴者的固有像差。
