Purpose: To assess the safety and effectiveness of transepithelial photorefractive keratectomy (T-PRK) in patients with mild myopia using the Schwind Amaris 750 s Excimer laser system which take corneal epithelium variability in consideration during ablation.
Methods: A prospective case series study of patients with mild myopia with or without astigmatism (spherical equivalent ≤ -3 diopters), who underwent T-PRK as a single-step treatment, was carried out at King Abdulaziz University Hospital, Riyadh between May 2017 and January 2018. The main outcomes included postoperative uncorrected distance visual acuity (UDVA), residual refraction (manifest refraction) and complications.
Results: A total of 42 patients (84 eyes) underwent bilateral T-PRK with a preoperative spherical equivalent ranging from - 0.75 to - 3.00 D. Median spherical equivalent before Trans-PRK was - 1.75 (- 1.25to - 1.75). The spherical equivalent six months after Trans-PRK was 0.0 (- 0.25 to 0.5). All patients had a postoperative UDVA of 20/20 or better in the last follow-up. Transient postoperative corneal haze was observed in five eyes (6%).
Conclusion: T-PRK appears to be safe and effective in patients who have mild myopia, with or without astigmatism. The normal variation in corneal epithelial thickness seems not to affect the outcomes.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s10792-021-01816-y | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Weight Status and Myopia in Children and Adolescents: A Nationwide Cross-Sectional Study of China.
Nutrients
January 2025
Chinese Center for Disease Control and Prevention, National Institute for Nutrition and Health, Key Laboratory of Public Nutrition and Health, National Health Commission of the People's Republic of China, Beijing 100050, China.
Background/objectives: The prevalence of both myopia and obesity is increasing among children and adolescents around the world. We aimed to examine the association between weight status and myopia in Chinese children and adolescents.
Methods: The analysis included 35,108 participants aged 6-17 from a nationwide cross-sectional survey.
Corneal Biomechanical Characteristics and Correlation Analysis in Children With Different Refractive States.
J Ophthalmol
January 2025
Pediatric Ophthalmology, Shanxi Aier Eye Hospital, Aier Eye Hospital Group, Changsha, China.
To investigate the correlation between corneal biomechanical characteristics and refractive status in adolescents aged 5-13 years. A cross-sectional study involved 339 children aged 5-13 with a spherical equivalent (SE) range from -6.00 to +2.
View Article and Find Full Text PDFA study on the variability and correlation of ocular biological measurement parameters in adult myopic patients.
Front Med (Lausanne)
January 2025
Shenzhen Eye Institute, Shenzhen Eye Hospital, Jinan University, Shenzhen, Guangdong, China.
Objective: This study aims to explore the differences in ocular parameters among adult myopic patients with different degrees of myopia and axial lengths, and to investigate the correlations between these ocular parameters.
Methods: This single-center observational study collected clinical data from myopic patients aged 18-45 years who visited the Eye Hospital of Nanjing Medical University between January and June 2023. The data included laterality, diopter of spherical power (DS), diopter of cylindrical power (DC), spherical equivalent (SE), axial length (AL), central corneal thickness (CCT), flat meridian keratometry (K1), steep meridian keratometry (K2), mean keratometry (Km), anterior chamber depth (ACD), corneal radius of curvature (CRC), and axial length/corneal radius of curvature ratio (AL/CRC).
Case report: Transmuscular migration of a solid encircling silicone band through all four rectus muscles.
Front Med (Lausanne)
January 2025
Department of Ophthalmology and Vision Science, Eye and ENT Hospital of Fudan University, Shanghai, China.
Purpose: We present a case of transmuscular migration of a solid encircling silicone band through all four rectus muscles.
Observations: A 33-year-old male with high myopia presented with a progressively worsening subclinical peripheral rhegmatogenous retinal detachment in his left eye. An encircling silicone band (#240) was placed anterior to the equator, and 5-0 polyester sutures (Ethicon, Inc.
Axial length to corneal curvature radius ratio is negatively correlated with choroidal blood flow in myopic children.
Front Ophthalmol (Lausanne)
January 2025
Department of Ophthalmology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
Background: The pathophysiologic mechanisms underlying early-onset myopia remain unclear; in this study, we investigate the pathogenesis by examining the interrelationships between axial length to corneal curvature radius ratio ( ) and choroidal blood flow.
Methods: This cross-sectional study included 202 eyes from myopic children, categorized into 141 eyes with mild myopia, 47 eyes with moderate myopia, and 14 eyes with high myopia. Optical coherence tomography angiography (OCTA) was used to measure choroidal blood flow perfusion within a 6 mm × 6 mm area of the macular region, divided into nine subareas based on ETDRS partitioning: macular fovea, nasal side 1, superior 1, temporal side 1, inferior 1, nasal side 2, superior 2, temporal side 2, and inferior 2.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!