Journals / Türk Oftalmoloji Dergisi / 2020 / Cilt: 50 - Sayı: 3

Comparison of Higher-Order Aberrations After Single-Step Transepithelial and Conventional Alcohol-Assisted Photorefractive Keratectomy

Transepitelyal ve Konvansiyonel Alkol Destekli Fotorefraktif Keratektomi Sonrası Yüksek Sıralı Aberasyonların Karşılaştırılması

Pages
127–132
Publication Date
2022-11-06
DOI
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⚡ TL;DR(Too Long; Didn't Read)

Conclusion: Both tPRK and aaPRK procedures obtain similar postoperative CDVA, SE, asphericity, and HOA outcomes, except the aberration coefficient value.

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: To compare the asphericity and higher-order aberration (HOA) outcomes of single-step transepithelial photorefractive keratectomy (tPRK) and conventional alcohol-assisted PRK (aaPRK) in patients with myopia and myopic astigmatism.
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Key Findings & Data:Materials and Methods: Of the 108 eyes of 54 patients enrolled in the study, tPRK was performed on 54 (50%) eyes and aaPRK was performed on 54 (50%) eyes.
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Conclusion & Impact:Conclusion: Both tPRK and aaPRK procedures obtain similar postoperative CDVA, SE, asphericity, and HOA outcomes, except the aberration coefficient value.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objectives: To compare the asphericity and higher-order aberration (HOA) outcomes of single-step transepithelial photorefractive keratectomy (tPRK) and conventional alcohol-assisted PRK (aaPRK) in patients with myopia and myopic astigmatism. Materials and Methods: Of the 108 eyes of 54 patients enrolled in the study, tPRK was performed on 54 (50%) eyes and aaPRK was performed on 54 (50%) eyes. The following parameters were compared: corrected distance visual acuity (CDVA), spherical equivalent (SE), flat and steep keratometry, intraocular pressure, central corneal thickness, asphericity, and HOAs including horizontal and vertical coma, horizontal and vertical trefoil, spherical aberration, second-order vertical coma, and aberration coefficient. Results: The demographic and baseline characteristics were similar between the two groups (p>0.05, for all). The aberration coefficient value was significantly lower in patients treated with aaPRK compared to patients treated with tPRK at postoperative 3 months, 6 months, and 1 year (p=0.022, p=0.019, and p=0.017, respectively). Differences in the other variables were statistically insignificant (p>0.05 for all). Conclusion: Both tPRK and aaPRK procedures obtain similar postoperative CDVA, SE, asphericity, and HOA outcomes, except the aberration coefficient value.

Özet

Amaç: Miyop ve miyopik astigmatizmalı hastalarda tek aşamalı transepitelyal fotorefraktif keratektomi (tFRK) ve konvansiyonel alkol yardımlı FRK (aFRK) sonrası asferiklik ve yüksek sıralı aberasyon (YSA) sonuçlarını karşılaştırmak. Gereç ve Yöntem: Çalışmaya 54 hastanın 108 gözü dahil edildi. Elli dört (%50) göze tFRK, 54 (%50) göze aFRK uygulandı. Aşağıdaki parametreler karşılaştırıldı: En iyi düzeltilmiş görme keskinliği (EİDGK), sferik eşdeğer (SE), düz ve dik keratometri, göz içi basıncı, merkezi kornea kalınlığı, asferiklik ve horizontal ve vertikal koma, horizontal ve vertikal trefoil, sferik aberasyon, ikinci sıra vertikal koma ve aberasyon katsayısı. Bulgular: Demografik ve başlangıç klinik özellikler iki grup arasında benzerdi (hepsi için p>0,05). Aberasyon katsayısı değeri, aFRK ile tedavi edilen hastalarda ameliyat sonrası 3. ayda, 6. ayda ve 1. yılda tFRK ile tedavi edilen hastalara göre istatistiksel olarak anlamlı derecede düşük bulundu (sırasıyla p=0,022, p=0,019 ve p=0,017). Diğer değişkenler istatistiksel olarak anlamlı değildi (p>0,05, hepsi için). Sonuç: Hem tFRK hem aFRK prosedürleri ile, aberasyon katsayısı değeri hariç, benzer postoperatif EİDGK, SE, asferiklik ve YSA sonuçları elde edilmektedir.

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Cite This Article

ÖZÜLKEN, K., İLHAN, Ç. (2022). Comparison of Higher-Order Aberrations After Single-Step Transepithelial and Conventional Alcohol-Assisted Photorefractive Keratectomy. Türk Oftalmoloji Dergisi, Cilt: 50 - Sayı: 3, 127–132. https://ajindex.com/articles/637678

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