Photorefractive keratectomy as an alternative for the correction of refractive errors: a case report
Keywords:
Photorefractive Keratectomy, topography, pachymetry, visual acuityAbstract
Photorefractive Keratectomy (PRK) is an option for correcting refractive errors in patients who are not candidates for corneal flap procedures. A descriptive, observational study was conducted to evaluated preoperative examination findings, as well as topographic changes and visual acuity three months after surgery in a patient seen at the Optometry Clinic of Metropolitan University during the first quarter of 2026. The fundamentals of the technique, selection criteria and its effects on visual quality and patient well- being analyzed. Preoperative variables such as visual acuity, manifest refraction, corneal topography and pachymetry were considered in addition to postoperative clinical follow-up. The results showed a significant improvement in uncorrected vision, adequate epithelial regeneration, and sustained refractive stability. PRK proved to be a safe, effective, and predictable procedure, especially useful in patients with specific corneal characteristics who were not candidates for other techniques.
Downloads
References
Abdelghany, A. A., & Alio, J. L. (2014). Surgical options for correction of refractive error following cataract surgery. Eye and vision (London, England), 1, 2. https://doi.org/10.1186/s40662-014-0002-2
Abdelghany, A. A., & Alio, J. L. (2014). Surgical options for correction of refractive error following cataract surgery. Eye and Vision, 1, Article 2. https://doi.org/10.1186/s40662-014-0002-2
Aguilar, A. J. (2026). Cirugía refractiva y superficie ocular: Manejo del ojo seco post-LASIK, SMILE y PRK. Oftalmólogo al Día. https://oftalmologoaldia.com/cirugia-refractiva-y-superficie-ocular-manejo-del-ojo-seco-post-lasik-smile-y-prk/
Barrera Meléndez, A. (2019). Resultados a largo plazo de la cirugía refractiva corneal [Trabajo de fin de grado, Universidad de Valladolid]. Universidad de Valladolid.
Chen, A., Lin, B., & Lin, S. (2020). How to interpret corneal topography: 5 clinical uses. EyeGuru. https://eyeguru.org/essentials/corneal-topography/
D’Oria, F., Bagaglia, S. A., Alio del Barrio, J. L., Alessio, G., Alio, J. L., & Mazzotta, C. (2024). Refractive surgical correction and treatment of keratoconus. Survey of Ophthalmology, 69(1), 122–139. https://doi.org/10.1016/j.survophthal.2023.09.005
Essa Mohammed, E. H., & Moodley, V. R. (2024). Visual functions and anterior ocular surface changes post trans-PRK. African Vision and Eye Health, 83(1), 1–7. https://doi.org/10.4102/aveh.v83i1.904
Jacobs, D. S., Shen, T. T., Afshari, N. A., Bishop, R. J., Keenan, J. D., & Vitale, S. (2023). Refractive surgery preferred practice pattern. Ophthalmology, 130(3), 61–135. https://doi.org/10.1016/j.ophtha.2022.10.032
Naderi, M., Sabour, S., Khodakarim, S., & Daneshgar, F. (2018). Studying the factors related to refractive error regression after PRK surgery. BMC Ophthalmology, 18, Article 198. https://doi.org/10.1186/s12886-018-0879-y
Rey, R. V., & Moreno-Montoya, J. (2017). Resultado visual a los tres meses de cirugía con LASEK. Revista Mexicana de Oftalmología, 91(5), 221–228. https://www.elsevier.es/es-revista-revista-mexicana-oftalmologia-321-articulo-resultado-visual-tres-meses-cirugia-S0187451916300762
Sastre, T. (2017). Efecto entre la magnitud del defecto refractivo en la agudeza visual sin corrección. Relación entre agudeza visual y refracción [Trabajo de fin de grado, Universidad de Valladolid].
Solís Sánchez, G., Alcalde Bezhold, G., & Alfonso Farnós, I. (2023). Ética en investigación: De los principios a los aspectos prácticos. Anales de Pediatría, 99(3), 195–202. https://doi.org/10.1016/j.anpedi.2023.06.005
Suárez Fernández, R., Trasobares, L., Medina, S., & García Rodríguez, M. (2001). Neurofibromatosis. Medicina Integral, 38(2), 64–68. https://www.elsevier.es/es-revista-medicina-integral-63-articulo-neurofibromatosis-13015324
Tomás-Juan, J., Murueta-Goyena Larrañaga, A., & Hanneken, L. (2015). Corneal regeneration after photorefractive keratectomy: A review. Journal of Optometry, 8(3), 149–169. https://doi.org/10.1016/j.optom.2014.09.001
Downloads
Published
Issue
Section
License
Copyright (c) 2026 Yoandra Licea-Reyes, Armando Randy Lara-Valle
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Authors who publish in Revista UGC agree to the following terms:
1. Copyright
Authors retain unrestricted copyright to their work. Authors grant the journal the right of first publication. To this end, they assign the journal non-exclusive exploitation rights (reproduction, distribution, public communication, and transformation). Authors may enter into additional agreements for the non-exclusive distribution of the version of the work published in the journal, provided that acknowledgment of its initial publication in this journal is given.
© The authors.
2. License
The articles are published in the journal under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (CC BY-NC-SA 4.0). The terms can be found at: https://creativecommons.org/licenses/by-nc-sa/4.0/deed.en
This license allows:
- Sharing: Copying and redistributing the material in any medium or format.
- Adapting: Remixing, transforming, and building upon the material.
Under the following terms:
- Attribution: You must give appropriate credit, provide a link to the license, and indicate if any changes were made. You may do this in any reasonable manner, but not in any way that suggests the licensor endorses or sponsors your use.
- NonCommercial: You may not use the material for commercial purposes.
- ShareAlike: If you remix, transform, or build upon the material, you must distribute your creation under the same license as the original work.
There are no additional restrictions. You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
