Effect of the long-term wearing of spectacle lenses with highly aspherical lenslets on visual field sensitivity in children with myopia

This study investigated the effects of the short and long-term wearing of spectacle lenses with highly aspherical lenslets (HAL) on visual field sensitivity in children with myopia. This prospective case‒control study included 80 children with myopia aged 13–18 years, whose spherical equivalent refractive error (SER) ranged from ﹣1.00 D to -7.25 D. Forty children wore single vision lenses (SVL) habitually, while the remaining 40 children had been wearing HAL lenses for five years. Static visual field sensitivity was assessed using automatic static perimetry (Goldman III target) involving 76 white light points within a 30° radius visual field. After a practice round without the test lenses, measurements were taken while the participants wore either test HAL lenses or SVL in a randomized order. All assessments were conducted on the right eye while the left eye was occluded. Statistical analysis using generalized estimating equations (GEEs) revealed no significant main effects of group (p = 0.17) or lens (p = 0.52), nor significant interaction effect between these factors (p = 0.81). When the test SVL were used, the difference in mean sensitivity between the HAL and SVL groups (HAL group minus SVL group) was 0.7 ± 1.19 dB (ranging from ﹣ 2.5 dB to 4.8 dB). When the test HAL lenses were used, a mean difference of 0.7 ± 0.91 dB (ranging from ﹣ 0.6 dB to 3.3 dB) was observed between the two groups. Visual field reliability parameters (fixation, false-positive, and false-negative error ratios) were similar between conditions (all p > 0.05). Neither short nor long-term wearing of spectacles with HAL affected full-field static visual field sensitivity within the 30° radius visual field in children with myopia aged 13 to 18 years, supporting their safety profile in controlling myopia.