A novel progressive defocus rigid gas permeable contact lenses for controlling axial elongation in myopic children: a retrospective study
- 1Health Science Center, Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
- 2Department of Optometry and Vision Science, Xi'an No.1 Hospital, Northwest University, Xi'an 710002, Shaanxi Province, China
- 3Department of Ophthalmology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
Abstract
AIM: To evaluate the efficacy of progressive defocus rigid gas permeable (DRGP) contact lenses in slowing down myopic progression and analyze the factors may influence axial length (AL) elongation in myopic children. METHODS: This was a retrospective study conducted on school-age children with myopia of -5.00 D or higher who were fitted with DRGP lenses. A matched control group wearing single-vision (SV) spectacles was selected based on comparable baseline age and refractive error. The AL was measured at baseline and at 6-month intervals thereafter. Changes in AL were compared between the groups. RESULTS: The DRGP lenses group comprised 56 subjects (39 females, mean age 11.96±2.32y), the SV spectacle group comprised 53 subjects (29 females, mean age 11.09±2.33y). After a 12-month follow-up period, the mean axial elongation was measured to be 0.19±0.13 mm in the DRGP group and 0.45±0.20 mm in the SV group, respectively (P<0.001). The use of DRGP lenses by children resulted in a 57.8% lower AL of the eye compared to the use of spectacles over the one-year period. Concurrently, the treatment effect was found to be negatively correlated with the baseline age (r=-0.46, P<0.001) and flat keratometry (r=-0.34, P=0.010). CONCLUSION: Daily wearing of the DRGP lenses significantly curbs axial elongation in children when compared with SV lenses.
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BibTeX
@article{zhang2026novel,
title = {{A novel progressive defocus rigid gas permeable contact lenses for controlling axial elongation in myopic children: a retrospective study}},
author = {Xue-Hui Zhang and Hui-Hu Zheng and Pan Li and Jin Wang and Xin Ai and Lin Kang and Cheng Pei},
journal = {International Journal of Ophthalmology},
year = {2026},
month = nov,
doi = {10.18240/ijo.2026.11.13},
url = {https://doi.org/10.18240/ijo.2026.11.13},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - A novel progressive defocus rigid gas permeable contact lenses for controlling axial elongation in myopic children: a retrospective study
AU - Xue-Hui Zhang
AU - Hui-Hu Zheng
AU - Pan Li
AU - Jin Wang
AU - Xin Ai
AU - Lin Kang
AU - Cheng Pei
PY - 2026
DA - 2026/11/02
JO - International Journal of Ophthalmology
DO - 10.18240/ijo.2026.11.13
UR - https://doi.org/10.18240/ijo.2026.11.13
AB - AIM: To evaluate the efficacy of progressive defocus rigid gas permeable (DRGP) contact lenses in slowing down myopic progression and analyze the factors may influence axial length (AL) elongation in myopic children. METHODS: This was a retrospective study conducted on school-age children with myopia of -5.00 D or higher who were fitted with DRGP lenses. A matched control group wearing single-vision (SV) spectacles was selected based on comparable baseline age and refractive error. The AL was measured at baseline and at 6-month intervals thereafter. Changes in AL were compared between the groups. RESULTS: The DRGP lenses group comprised 56 subjects (39 females, mean age 11.96±2.32y), the SV spectacle group comprised 53 subjects (29 females, mean age 11.09±2.33y). After a 12-month follow-up period, the mean axial elongation was measured to be 0.19±0.13 mm in the DRGP group and 0.45±0.20 mm in the SV group, respectively (P<0.001). The use of DRGP lenses by children resulted in a 57.8% lower AL of the eye compared to the use of spectacles over the one-year period. Concurrently, the treatment effect was found to be negatively correlated with the baseline age (r=-0.46, P<0.001) and flat keratometry (r=-0.34, P=0.010). CONCLUSION: Daily wearing of the DRGP lenses significantly curbs axial elongation in children when compared with SV lenses.
SN - 2222-3959
SN - 2227-4898
ER -