Schmid Katrina L, Gifford Kate L, Atchison David A
School of Optometry and Vision Science, Centre for Vision and Eye Research, Faculty of Health, Queensland University of Technology, 60 Musk Ave, Kelvin Grove, Qld 4059, Australia.
School of Optometry and Vision Science, Centre for Vision and Eye Research, Faculty of Health, Queensland University of Technology, 60 Musk Ave, Kelvin Grove, Qld 4059, Australia; Myopia Profile Pty Ltd, Australia.
Cont Lens Anterior Eye. 2023 Feb;46(1):101588. doi: 10.1016/j.clae.2022.101588. Epub 2022 Mar 15.
Multifocal soft contact lenses (MFCLs) are prescribed to inhibit myopia progression; these include aspheric and concentric designs. The effects of MFCLs on visual quality, accommodation and vergence in young-adult myopes were evaluated.
Participants were twenty-six myopes (19-25 years, spherical equivalent -0.50 to -5.75D), with normal binocular vision and no past myopia control. Pupil sizes were 4.4 ± 0.9 mm during distance viewing and 3.7 ± 0.8 mm at near. In random order, participants wore four MFCLs: Proclear single vision distance, MiSight concentric dual focus (+2.00D), distance center aspheric (Biofinity, +2.50D) (CooperVision lenses), and NaturalVue aspheric (Visioneering Technologies). Testing included visual acuity, contrast sensitivity (Pelli-Robson), stereoacuity, accommodation response, negative and positive relative accommodation, horizontal phorias, horizontal fusional vergence and AC/A ratio, and a visual quality questionnaire.
The four lenses differed in distance (p = 0.001) and near visual acuity (p = 0.011), and contrast sensitivity (p = 0.001). Compared with the single vision lens, the Biofinity aspheric had the greatest visual impact: 0.19 ± 0.14 logMAR distance acuity reduction, 0.22 ± 0.15 log contrast sensitivity reduction. Near acuity was affected less than distance acuity; the reduction was greatest with the NaturalVue (0.05 ± 0.07 logMAR reduction). The MFCLs altered the autorefraction measure at distance and near (p = 0.001); the accommodation response was less with aspheric lenses. Negative relative accommodation reduced with the aspheric lenses (p = 0.001): by 0.9 ± 0.5D with Biofinity and 0.5 ± 0.7D with NaturalVue. Exophoric shifts were greater with aspheric lenses (1.8 ± 2.4Δ Biofinity, 1.7 ± 1.7Δ NaturalVue) than with the concentric MiSight (0.5 ± 1.3Δ).
MFCLs alter visual performance, refraction and vergence; two aspheric lenses had greater effect than a concentric lens.
多焦点软性接触镜（MFCL）被用于抑制近视进展；这些镜片包括非球面和同心设计。评估了MFCL对年轻成年近视患者视觉质量、调节和聚散功能的影响。
研究对象为26名近视患者（年龄19 - 25岁，等效球镜度数-0.50至-5.75D），双眼视力正常且既往未进行过近视控制。远距离注视时瞳孔直径为4.4±0.9mm，近距离注视时为3.7±0.8mm。患者随机佩戴四种MFCL：宝晴视单焦点远距离镜片、米视明同心双焦点镜片（+2.00D）、非球面远距离中心镜片（博视顿，+2.50D）（库博光学镜片）以及自然视非球面镜片（视景科技）。测试项目包括视力、对比敏感度（佩利-罗布森视力表）、立体视锐度、调节反应、负相对调节和正相对调节、水平隐斜、水平融合性聚散及AC/A比率，以及一份视觉质量问卷。
四种镜片在远距离（p = 0.001）和近距离视力（p = 0.011）以及对比敏感度（p = 0.001）方面存在差异。与单焦点镜片相比，博视顿非球面镜片对视觉的影响最大：远距离视力下降0.19±0.14logMAR，对比敏感度下降0.22±0.15log。近距离视力受影响程度小于远距离视力；自然视镜片导致的下降最为明显（下降0.05±0.07logMAR）。MFCL改变了远距离和近距离的自动验光测量值（p = 0.001）；非球面镜片的调节反应较小。非球面镜片使负相对调节降低（p = 0.001）：博视顿镜片降低0.9±0.5D，自然视镜片降低0.5±0.7D。非球面镜片引起的外隐斜偏移比同心的米视明镜片更大（博视顿镜片为1.8±2.4Δ，自然视镜片为1.7±1.7Δ），而米视明镜片为0.5±1.3Δ。
MFCL改变视觉性能、屈光和聚散功能；两种非球面镜片的影响大于同心镜片。
