ArticleBeyoglu eye journal2025
8-to-10-Year Follow-Up Results of Photorefractive Keratectomy and Risk Factors for Myopia Regression (Including Near Work Activity) in Southeast Iran.
Article in Beyoglu eye journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objectives: To evaluate the 8-to-10-year safety, efficacy, and predictability of photorefractive keratectomy (PRK) and to assess the risk factors for myopic regression and the role of near-work activity in myopia progression. Methods: This retrospective study included patients who underwent mechanical PRK and were followed up for 8-10 years. Pre-operative clinical data, including visual acuity, refraction, tomography, optical zone, and ablation depth, were analyzed. Safety, efficacy, and predictability indices were evaluated, and astigmatism correction was assessed using Alpins' vector analysis. Myopic regression was defined as a spherical equivalent <-0.25 D. Risk factors for myopic regression were evaluated using regression analysis, and near-work activity was investigated as a potential factor for myopia progression. Results: Eighty-two patients (mean age 30±5.8 years) completed the follow-up. Pre-operative and post-operative refractive errors were -3.61±1.80 D and -0.12±0.25 D, respectively (p<0.001). Seventy-four percent of patients had post-operative refractive errors within ±0.25 D. The safety, efficacy, and predictability indices were 1, 0.95, and 0.97, respectively. The astigmatism correction index was 1.02±0.78. Myopic regression occurred in 22% of patients. Regression analysis showed that the odds of myopic regression increased by 1.4 times (p=0.04) for each 1 D increase in myopia and by 1.05 times (p=0.04) for each micrometer increase in ablation depth. Conversely, the odds decreased by 0.14 times (p=0.03) with each millimeter increase in corneal diameter. The odds ratio for the time spent on near-work activity was insignificant. Conclusion: PRK proved to be a safe, effective, and predictable procedure in the long term. Myopia and ablation depth were significant risk factors for myopic regression, while corneal diameter was protective. Near-work activity did not affect myopia progression. Under-corrected eyes for astigmatism exhibited a higher magnitude of pre-operative astigmatism compared to over-corrected eyes.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.