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Scientific paper - Original scientific paper
Vector Analysis of Visual Acuity and Refractive Outcomes of Astigmatic Corrections After T-PRK and Fs-LASIK
Acta Informatica Medica, 28 (2020), 3; 180-184. https://doi.org/10.5455/aim.2020.28.180-184
Biščević, Alma; Pjano Ahmedbegović, Melisa; Pandurević, Bojana; Gabrić, Ivan; Drino Sofić, Vernesa; Kovačević, Damir

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Biščević, A., Pjano Ahmedbegović, M., Pandurević, B., Gabrić, I., Drino Sofić, V. & Kovačević, D. (2020). Vector Analysis of Visual Acuity and Refractive Outcomes of Astigmatic Corrections After T-PRK and Fs-LASIK. Acta Informatica Medica, 28. (3), 180-184. doi: 10.5455/aim.2020.28.180-184

Biščević, Alma, et al. "Vector Analysis of Visual Acuity and Refractive Outcomes of Astigmatic Corrections After T-PRK and Fs-LASIK." Acta Informatica Medica, vol. 28, no. 3, 2020, pp. 180-184. https://doi.org/10.5455/aim.2020.28.180-184

Biščević, Alma, Melisa Pjano Ahmedbegović, Bojana Pandurević, Ivan Gabrić, Vernesa Drino Sofić and Damir Kovačević. "Vector Analysis of Visual Acuity and Refractive Outcomes of Astigmatic Corrections After T-PRK and Fs-LASIK." Acta Informatica Medica 28, no. 3 (2020): 180-184. https://doi.org/10.5455/aim.2020.28.180-184

Biščević, A., et al. (2020) 'Vector Analysis of Visual Acuity and Refractive Outcomes of Astigmatic Corrections After T-PRK and Fs-LASIK', Acta Informatica Medica, 28(3), pp. 180-184. doi: 10.5455/aim.2020.28.180-184

Biščević A, Pjano Ahmedbegović M, Pandurević B, Gabrić I, Drino Sofić V, Kovačević D. Vector Analysis of Visual Acuity and Refractive Outcomes of Astigmatic Corrections After T-PRK and Fs-LASIK. Acta Informatica Medica [Internet]. 2020 [cited 2024 December 03];28(3):180-184. doi: 10.5455/aim.2020.28.180-184

A. Biščević, M. Pjano Ahmedbegović, B. Pandurević, I. Gabrić, V. Drino Sofić and D. Kovačević, "Vector Analysis of Visual Acuity and Refractive Outcomes of Astigmatic Corrections After T-PRK and Fs-LASIK", Acta Informatica Medica, vol. 28, no. 3, pp. 180-184, 2020. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:184:419960. [Accessed: 03 December 2024]

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Metadata
Title (english)Vector Analysis of Visual Acuity and Refractive Outcomes of Astigmatic Corrections After T-PRK and Fs-LASIK
AuthorAlma Biščević
AuthorMelisa Pjano Ahmedbegović
AuthorBojana Pandurević
AuthorIvan Gabrić
AuthorVernesa Drino Sofić
AuthorDamir Kovačević
Author's institutionUniversity of Rijeka
Faculty of Medicine
(Department of Ophthalmology)
Scientific / art field,
discipline and subdiscipline		BIOMEDICINE AND HEALTHCARE
Clinical Medical Sciences
Ophthalmology
Abstract (english)
Introduction: T Transepithelial photorefractive keratectomy (T-PRK) and femtosecond laser in situ keratomileusis (Fs-LASIK) are reftactive surgery methods for treating myopia and myopic astigmatism. Although T-PRK obtains similar results to Fs-LASIK with spherical myopia, it has differences in astigmatism correction. Vector analysis is a perfect tool to see the real difference between these two methods regarding astigmatic refraction and visual acuity.Aim: The aim of the study is to investigate changes in astigmatism and visual acuity following treatment of myopia and myopic astigmatism above -5.00DS and up to -2.00DC after either T-PRK or Fs-LASIK. Methods: Patients (30 eyes per group) underwent unremarkable T-PRK (group I) or Fs- LASIK (group II) using Schwind Amaris 750S laser. Astigmatic data acquired by subjective refraction were subjected to vector analysis to determine the association between surgically (SIA) and target induced (TIA) astigmatic powers and differences in axes(θ). Results: Key results at 6 months were: i) Mean astigmatism changed from -0.92 DC (sd ±0.49, 95%CI-1.10to-0.75) to -0.38 DC (sd ±0.40, 95% CI-0.52 to -0.24) in group I and -0.93DC (sd±0.55, 95%CI -1.07 to -0.67) to -0.14DC (sd±0.31, 95% CI-0.25 to -0.03) in group II (P=0.005 at 6 months). ii) Mean (±sd) θ was +9.7° (±19.0°) in group I and -2.2° (±15.5°) in group II (P=0.005).Conclusion: There was a greater mismatch between SIA and TIA powers and axes after T-PRK. T-PRK tends to induce more unwanted astigmatism. The predictability of the refractive and optical changes is better following Fs-LASIK.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review
Publication versionPublished version
Journal titleActa Informatica Medica
Numberingvol. 28, no. 3, pp. 180-184
p-ISSN0353-8109
DOIhttps://doi.org/10.5455/aim.2020.28.180-184
URN:NBNurn:nbn:hr:184:419960
Publication2020
Document URLhttp://bib.irb.hr/1106847
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) icon
Created on2022-03-15 12:06:17