Effect of Spectacle Lenses with Highly Aspherical Lenslets on Binocular Vision and Accommodation in Myopic Children with and without Intermittent Exotropia

Zhou, Fengchao; Li, Xue; Huang, Yingying; Li, Yuhao; Jiali, Zhang; Chen, Hao; Bao, Jinhua

doi:10.1155/2022/9306848

Cited by 2 publications

(2 citation statements)

References 36 publications

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“…Many previous studies that have explored the impact of myopia control lenses having a lenslet design on visual function. [18][19][20][21] In a short-term study, Fengchao et al 20 found that HAL use could increase accommodative mircrofluctuations. Two additional investigations 18,21 assessed the effect of long-term lenslet wear on visual function.…”

Section: Discussionmentioning

confidence: 99%

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Peripheral myopic defocus signal affects the efficiency of visual information processing in myopic children

Ding,

Mao,

et al. 2024

Ophthalmic Physiologic Optic

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PurposeSpectacle lenses with peripheral lenslets have shown promise for myopia control by providing peripheral myopic defocus signals. Here, we aimed to investigate the impact of prolonged exposure (>6 months) to peripheral myopic defocus on visual information processing in myopic children.MethodsThe study included 30 myopic children who habitually wore spectacle lenses with highly aspherical lenslets (HAL group) and 34 children who habitually wore single‐vision (SV group) spectacles. The quick contrast sensitivity function (qCSF) was used to measure contrast sensitivity (CS) under conditions of no or high noise. Both groups were tested with HAL and SV lenses. The perceptual template model was utilised to fit the contrast sensitivity function (CSF) and determine differences in information processing efficiency through internal additive noise () and perceptual template gain (β).ResultsThe areas under the log CSF in the SV group were significantly higher than for the HAL group in both zero‐noise conditions with the SV test lens (p = 0.03) and high‐noise conditions with the HAL test lens (p = 0.02). For 2 cycle per degree (cpd) stimuli, β was significantly higher in the SV group with the HAL test lens than in the HAL group (p = 0.02), while there was a trend towards a significant difference in β for 6 cpd stimuli (p = 0.07). However, there were no significant differences in between the two groups, with or without noise interference.ConclusionThe reduced CS observed in myopic children wearing HAL lenses for 6 months or more may be due to decreased β. This suggests that prolonged use of spectacle lenses with peripheral myopic defocus signals may compromise the central visual system's ability to process additional external noise, resulting in decreased efficiency in visual information processing.

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Section: Discussionmentioning

confidence: 99%

“…Many previous studies that have explored the impact of myopia control lenses having a lenslet design on visual function 18‐21 . In a short‐term study, Fengchao et al 20 . found that HAL use could increase accommodative mircrofluctuations.…”

Section: Discussionmentioning

confidence: 99%

Peripheral myopic defocus signal affects the efficiency of visual information processing in myopic children

Ding,

Mao,

et al. 2024

Ophthalmic Physiologic Optic

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Assessment of binocular vision and accommodation in myopic children wearing Defocus Incorporated Multiple Segments (DIMS) Lenses for 24 Months

Yahaya,

Norazman,

Mohd-Ali

et al. 2024

Preprint

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Purpose: The study aimed to investigate the changes in binocular vision (BV) and accommodation in myopic children following long-term wear of Defocus Incorporated Multiple Segments (DIMS) spectacle lenses for 24 months. Methods: Twenty-three Malay myopic children aged 7–12 years were enrolled in this prospective, self-controlled study. DIMS spectacle lenses were prescribed, and assessments were conducted at baseline, 12, and 24 months. Assessments included visual acuity (VA), cycloplegic refraction, axial length (AL), and a range of BV measures including stereopsis, near point of convergence (NPC), phoria, positive/negative fusional vergence (PFV/NFV), amplitude of accommodation (AA), accommodative lag, positive/negative relative accommodation (PRA/NRA), and accommodative convergence to accommodation (AC/A) ratio. Results: Statistically significant changes were observed after 24 months, including AL elongation and myopia progression (P<0.001), receded NPC (p<0.001), reduced AA (p=0.002), increased distance PFV (p=0.026), and improvements in accommodative lag (p=0.002), NRA (p=0.004), stereopsis (p<0.001), and the AC/A ratio (p<0.001). Additionally, there were statistically significant improvements in distance and near VA (p<0.01). Conclusion: Wearing DIMS spectacle lenses for 24 months significantly altered the BV and accommodation of myopic children, particularly by improving the accommodation-convergence interaction. Regular monitoring of NPC, as well as distance and near PFV and NFV, is recommended to optimize the effectiveness of DIMS lenses in controlling myopia progression and maintaining BV stability.

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Effect of Spectacle Lenses with Highly Aspherical Lenslets on Binocular Vision and Accommodation in Myopic Children with and without Intermittent Exotropia

Cited by 2 publications

References 36 publications

Peripheral myopic defocus signal affects the efficiency of visual information processing in myopic children

Peripheral myopic defocus signal affects the efficiency of visual information processing in myopic children

Assessment of binocular vision and accommodation in myopic children wearing Defocus Incorporated Multiple Segments (DIMS) Lenses for 24 Months

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