Yu Zhang

Ray-tracing–guided FS-LASIK Using Mi Optimized Strategies

Yimeng Fan, Xindi Wang, Lei Luo, Yu Zhang et autres

Purpose: To evaluate the clinical outcomes of ray-tracing–guided femtosecond laser–assisted laser in situ keratomileusis (FS-LASIK) in the patients with a difference of greater than 0.50 diopters (D) between subjective and wavefront refractions at the corneal plane. Methods: This retrospective study included 80 …

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Corneal epithelial remodeling following myopic ray-tracing-guided laser-assisted in situ keratomileusis: A clinical study

Lei Luo, Yimeng Fan, Xindi Wang, Linjuan Yang et autres

PURPOSE: To evaluate corneal epithelial remodeling profile following ray-tracing-guided laser-assisted in situ keratomileusis (LASIK) for myopia. METHODS: This retrospective study enrolled 65 eyes from 33 patients undergoing ray-tracing-guided LASIK for myopia. Corneal epithelial thickness (CET) was measured across a 9-mm diameter area …

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The relationship between relative peripheral refraction and axial length elongation in myopic children wearing orthokeratology lenses using a novel wide-angle multispectral refraction topographer

Mandantuoya, Mingxin Ao, Yu Zhang

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Correlation of tear cortisol levels with morphological and biomechanical parameters of keratoconus

Xiaorui Zhao, Tong Sheng Sun, Yifei Yuan, Yu Zhang et autres

Introduction: Keratoconus (KC) is a vision-threatening corneal disorder predominantly affecting young males, significantly impairing their quality of life. We aim to evaluate tear cortisol levels in KC and compare with controls, and to determine the correlation of tear cortisol levels with morphological …

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The correlation between ocular residual astigmatism and wavefront-guided FS-LASIK correction effects in myopic astigmatism patients

Yu Zhang, Mingxiong He, Siyi Wang, Zhiyu Du

To evaluate the impact of ocular residual astigmatism (ORA) on the astigmatic correction outcomes of wavefront-guided femtosecond laser-assisted in situ keratomileusis (WFG FS-LASIK) in myopic astigmatism patients. Retrospective cohort study. This study analyzed 90 patients (177 eyes) undergoing WFG FS-LASIK at Chongqing …

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Predictability of central corneal stromal thickness reduction in InnovEyes ablation profile: A retrospective study

Yimeng Fan, Xindi Wang, Yu Zhang, Yunpeng Li et autres

• The InnovEyes ablation profile demonstrates good predictability of the central corneal stromal thickness (CST) reduction, ensuring its safety. • The CST reduction was greater in the InnovEyes profile than in the Custom-Q profile, but there was no significant difference in the …

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Accommodative and binocular characteristics in myopes with age-related accommodation deficiency

Ruiyu Zhang, Yifei Yuan, Yu Zhang, Yueguo Chen

BACKGROUND: To investigate accommodative and binocular characteristics in myopic patients with age-related accommodation deficiency, and to investigate the relationship of accommodation amplitude (AA) with other accommodative and binocular parameters. METHODS: Myopic patients between 40 and 50 years old to undergo refractive surgery …

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Visual Quality Following Femtosecond Laser–Assisted In Situ Keratomileusis With Q-Value–Guided Optimized Monovision in Patients With Myopia and Presbyopia

Ruiyu Zhang, Yu Zhang, Yueguo Chen

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Ray-tracing–Guided or Q-Value–Adjusted FS-LASIK for Correction of Myopia and Myopic Astigmatism: A Comparative Contralateral Eye Study

Yifei Yuan, Ruiyu Zhang, Zizhen Wang, Yuexin Wang et autres

Purpose To compare the safety and efficacy of individualized ray-tracing–guided femtosecond laser–assisted in situ keratomileusis (FS-LASIK) for correction of myopia and myopic astigmatism. Methods This prospective, randomized, double-blind, contralateral eye study included 68 eyes of 34 patients with myopia or myopic astigmatism …

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Comparison of Subjective and Wavefront-Measured Refractions by InnovEyes Platform in Myopic Patients

Yuexin Wang, Zhixin Duan, Yu Zhang, Yifei Yuan et autres

Purpose To compare the subjective refraction and Innov-Eyes (Alcon Laboratories, Inc) wavefront-measured refraction in patients with myopia and astigmatism before refractive surgery. Methods Consecutive myopic patients planning to receive refractive surgery with ages between 18 and 50 years old were retrospectively enrolled. …

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The Role of Pentacam Random Forest Index in Detecting Subclinical Keratoconus in a Chinese Cohort

Yan Liu, Yu Zhang, Yuexin Wang, Ruilan Dong et autres

Purpose: This study aimed to evaluate the diagnostic accuracy of a novel shape index, the Pentacam Random Forest Index (PRFI), in detecting keratoconus (KC), specifically subclinical keratoconus, in Chinese refractive surgery candidates. Methods: This prospective cohort study included 856 participants who were …

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Full range of vision and visual quality after mini-monovision FS-LASIK in high myopic patients with presbyopia

Ruiyu Zhang, Yifei Yuan, Yu Zhang, Yueguo Chen

BACKGROUND: To evaluate clinical outcomes and visual quality 3 months after mini-monovision (spherical equivalent [SE] between - 0.25 D and - 0.50 D) femtosecond laser-assisted in situ keratomileusis (FS-LASIK) for correction of high myopia in patients with presbyopia. METHODS: Patients who had …

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