The effect of orthokeratology lenses on optical quality and visual function in children
PurposeTo assess changes in optical quality and visual function in children after 3 months of wearing orthokeratology (OK) lenses.MethodsA total of 25 myopic children aged 8–12 years were recruited and completed the follow-up study. Optical quality, visual function and corneal morphology were assess...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-04-01
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| Series: | Frontiers in Neuroscience |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fnins.2023.1142524/full |
| _version_ | 1797847212115361792 |
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| author | Weiwei Lu Guanxin Song Yuhan Zhang Yan Lian Ke Ma Qingqing Lu Yiyu Jin Yang Zhao Shuyu Zhang Fan Lv Wanqing Jin |
| author_facet | Weiwei Lu Guanxin Song Yuhan Zhang Yan Lian Ke Ma Qingqing Lu Yiyu Jin Yang Zhao Shuyu Zhang Fan Lv Wanqing Jin |
| author_sort | Weiwei Lu |
| collection | DOAJ |
| description | PurposeTo assess changes in optical quality and visual function in children after 3 months of wearing orthokeratology (OK) lenses.MethodsA total of 25 myopic children aged 8–12 years were recruited and completed the follow-up study. Optical quality, visual function and corneal morphology were assessed at baseline and at follow-ups 1 and 3 months after wearing OK lenses. Optical quality parameters mainly included the modulation transfer function (MTF) cutoff, objective scattering index (OSI), Strehl ratio (SR) and the predicted visual acuities (PVAs). Visual function was assessed by visual acuity, monocular contrast sensitivity function (CSF) across five spatial frequencies and the area under the log contrast sensitivity function (AULCSF) that was also computed as an index for overall CSF.ResultsThe MTF cutoff and SR values both increased after 1 month of wearing the OK lenses (baseline vs. 1 month: PMTF = 0.008 and PSR = 0.049); this improvement plateaued after 3 months of lens wear (1 month vs. 3 months: PMTF = 0.626, PSR = 0.428). The corneal morphology also showed the similar change trend. The OSI showed the opposite change trend (baseline vs. 1 month: POSI < 0.001; 1 month vs. 3 months: POSI = 0.720). The mean CSF at 1.5 cpd decreased significantly after 1 month of wearing the lenses (baseline vs. 1 month: p = 0.001) and recovered after 3 months of lens wear (baseline vs. 3 months: p = 0.076). CSF at spatial frequencies of 3, 6, 12 and 18 cpd as well as the AULCSF did not significantly differ between any two timepoints (all Ps > 0.05).ConclusionAfter 3 months of wearing OK lenses, the subjects exhibited a decrease in optical quality, similar to corneal morphology, whereas their visual function remained largely unchanged. Thus, the optical quality was more susceptible to OK lenses than visual function in children. The initial month of OK treatment of children is a key period to be paid close attention to deterioration of optical quality and visual function. |
| first_indexed | 2024-04-09T18:07:39Z |
| format | Article |
| id | doaj.art-2c3b3672fa664cd49943325fe7bef45a |
| institution | Directory Open Access Journal |
| issn | 1662-453X |
| language | English |
| last_indexed | 2024-04-09T18:07:39Z |
| publishDate | 2023-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Neuroscience |
| spelling | doaj.art-2c3b3672fa664cd49943325fe7bef45a2023-04-14T05:02:25ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2023-04-011710.3389/fnins.2023.11425241142524The effect of orthokeratology lenses on optical quality and visual function in childrenWeiwei Lu0Guanxin Song1Yuhan Zhang2Yan Lian3Ke Ma4Qingqing Lu5Yiyu Jin6Yang Zhao7Shuyu Zhang8Fan Lv9Wanqing Jin10State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, ChinaState Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, ChinaDepartment of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Shenyang, ChinaState Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, ChinaState Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, ChinaState Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, ChinaState Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, ChinaState Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, ChinaState Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, ChinaState Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, ChinaState Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, ChinaPurposeTo assess changes in optical quality and visual function in children after 3 months of wearing orthokeratology (OK) lenses.MethodsA total of 25 myopic children aged 8–12 years were recruited and completed the follow-up study. Optical quality, visual function and corneal morphology were assessed at baseline and at follow-ups 1 and 3 months after wearing OK lenses. Optical quality parameters mainly included the modulation transfer function (MTF) cutoff, objective scattering index (OSI), Strehl ratio (SR) and the predicted visual acuities (PVAs). Visual function was assessed by visual acuity, monocular contrast sensitivity function (CSF) across five spatial frequencies and the area under the log contrast sensitivity function (AULCSF) that was also computed as an index for overall CSF.ResultsThe MTF cutoff and SR values both increased after 1 month of wearing the OK lenses (baseline vs. 1 month: PMTF = 0.008 and PSR = 0.049); this improvement plateaued after 3 months of lens wear (1 month vs. 3 months: PMTF = 0.626, PSR = 0.428). The corneal morphology also showed the similar change trend. The OSI showed the opposite change trend (baseline vs. 1 month: POSI < 0.001; 1 month vs. 3 months: POSI = 0.720). The mean CSF at 1.5 cpd decreased significantly after 1 month of wearing the lenses (baseline vs. 1 month: p = 0.001) and recovered after 3 months of lens wear (baseline vs. 3 months: p = 0.076). CSF at spatial frequencies of 3, 6, 12 and 18 cpd as well as the AULCSF did not significantly differ between any two timepoints (all Ps > 0.05).ConclusionAfter 3 months of wearing OK lenses, the subjects exhibited a decrease in optical quality, similar to corneal morphology, whereas their visual function remained largely unchanged. Thus, the optical quality was more susceptible to OK lenses than visual function in children. The initial month of OK treatment of children is a key period to be paid close attention to deterioration of optical quality and visual function.https://www.frontiersin.org/articles/10.3389/fnins.2023.1142524/fullorthokeratology lenseschildrenvisual functionopticalquality |
| spellingShingle | Weiwei Lu Guanxin Song Yuhan Zhang Yan Lian Ke Ma Qingqing Lu Yiyu Jin Yang Zhao Shuyu Zhang Fan Lv Wanqing Jin The effect of orthokeratology lenses on optical quality and visual function in children Frontiers in Neuroscience orthokeratology lenses children visual function optical quality |
| title | The effect of orthokeratology lenses on optical quality and visual function in children |
| title_full | The effect of orthokeratology lenses on optical quality and visual function in children |
| title_fullStr | The effect of orthokeratology lenses on optical quality and visual function in children |
| title_full_unstemmed | The effect of orthokeratology lenses on optical quality and visual function in children |
| title_short | The effect of orthokeratology lenses on optical quality and visual function in children |
| title_sort | effect of orthokeratology lenses on optical quality and visual function in children |
| topic | orthokeratology lenses children visual function optical quality |
| url | https://www.frontiersin.org/articles/10.3389/fnins.2023.1142524/full |
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