Monika Wojtczak-Kwaśniewska, Mikołaj Domagalski, Maciej Dymczyk, Maria Padurska, Katarzyna Przekoracka, Anna Przekoracka-Krawczyk
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Cortical responses were assessed by visual evoked potentials (VEPs), recorded from 10 electrodes placed over the parieto-occipital area.</p><p><strong>Results: </strong>MiYOSMART lenses produced slightly better HCVA than SVL (-0.25 vs. -0.21 logMAR, p = 0.02) and a larger accommodative response (MS 1.68 D; SVL 1.53 D, p < 0.001). No significant differences in LCVA, heterophoria, NPC, stereopsis or contrast sensitivity were observed. The latencies and amplitudes of the early and late components of the VEPs (C1, N1, P1, P2) did not differ significantly between lenses.</p><p><strong>Conclusions: </strong>This study found no clinically significant differences in visual parameters or visual cortex responses between SVL and MS lenses after 2 weeks of adaptation. 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引用次数: 0
摘要
目的:观察配戴离焦合并多节段(DIMS)近视控制眼镜后的视觉参数和皮质活动。方法:选取年龄在20 ~ 30岁的近视成人。该研究包括(1)视觉参数检查和(2)皮质反应测量,同时在两周的适应期后,以平衡顺序佩戴单视力镜片(SVL)和MiYOSMART (MS)镜片。测试的视觉参数包括:高对比视力(HCVA)和低对比视力(LCVA)、对比敏感度、暗视、近会聚点(NPC)、立体视、调节设施和调节反应。皮层反应通过视觉诱发电位(vep)来评估,vep是由放置在顶枕区上的10个电极记录的。结果:MiYOSMART透镜产生的HCVA略优于SVL (-0.25 vs -0.21 logMAR, p = 0.02)和更大的调节响应(MS 1.68 D;结论:本研究发现SVL和MS镜片在适应2周后的视觉参数或视觉皮层反应无临床显著差异。这些结果证实了DIMS镜片用于控制近视没有不良的视觉影响。
Do myopia control spectacle lenses with defocus incorporated multiple segments technology alter visual parameters and cortical activity?
Purpose: This study evaluated visual parameters and cortical activity after wearing myopia control spectacle lenses with defocus incorporated multiple segments (DIMS).
Methods: Myopic adults between 20 and 30 years of age were enrolled. The study consisted of (1) examination of visual parameters and (2) measurement of cortical responses, while wearing single vision lenses (SVL) and MiYOSMART (MS) lenses in counterbalanced order after a two-week adaptation period. Visual parameters tested were: high-contrast visual acuity (HCVA) and low-contrast visual acuity (LCVA), contrast sensitivity, heterophoria, near point of convergence (NPC), stereopsis, accommodative facility and the accommodative response. Cortical responses were assessed by visual evoked potentials (VEPs), recorded from 10 electrodes placed over the parieto-occipital area.
Results: MiYOSMART lenses produced slightly better HCVA than SVL (-0.25 vs. -0.21 logMAR, p = 0.02) and a larger accommodative response (MS 1.68 D; SVL 1.53 D, p < 0.001). No significant differences in LCVA, heterophoria, NPC, stereopsis or contrast sensitivity were observed. The latencies and amplitudes of the early and late components of the VEPs (C1, N1, P1, P2) did not differ significantly between lenses.
Conclusions: This study found no clinically significant differences in visual parameters or visual cortex responses between SVL and MS lenses after 2 weeks of adaptation. These results confirm the absence of adverse visual effects from DIMS lenses for myopia control.
期刊介绍:
Ophthalmic & Physiological Optics, first published in 1925, is a leading international interdisciplinary journal that addresses basic and applied questions pertinent to contemporary research in vision science and optometry.
OPO publishes original research papers, technical notes, reviews and letters and will interest researchers, educators and clinicians concerned with the development, use and restoration of vision.