One-year Outcomes of Photorefractive Keratectomy and Factors Influencing Its Efficacy

Konuralp Yakar; Göksu Alaçamlı

Makale detayları

One-year Outcomes of Photorefractive Keratectomy and Factors Influencing Its Efficacy

Yazarlar:

Konuralp Yakar | Göksu Alaçamlı

Yayıncı:

Mugla Sitki Kocman University

Ana Başlıklar:

Klinik Tıp Bilimleri (Diğer)

Dergi:

Muğla Sıtkı Koçman Üniversitesi Tıp Dergisi Vol.12 Issue 2, pp.149-154

Belge Tipi:

Makale

Yayın Tarihi:

8/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001357189

pISSN:

2148-8118

Anahtar kelimeler:

Özet:

 We conducted a retrospective study to evaluate the one-year outcomes of photorefractive keratectomy PRK and investigate the factors affecting its efficacy, The medical records of 196 eyes of 98 patients aged 18-40 years who underwent PRK between January 2021 and January 2023 for myopic, hypermetropic, andor astigmatic refractive errors, and follow-up examinations in the first postoperative year were included. Outcome measures included intraoperative and postoperative complications and objective refraction spherical equivalent SE at the postoperative 1st year visit. A one-year postoperative measurement of SE within  0.50 D was considered successful. Potential factors that may influence success, including age, sex, preoperative corneal thickness, visual acuity, refractive error type and magnitude, astigmatism type, and mean keratometry Kmean were investigated. All PRK surgeries were performed by the same surgeon, utilizing alcohol-assisted epithelial removal using a WaveLight EX 500 device. At the first year visit, 80.1 of patients achieved SE within  0.50 D. No intraoperative or postoperative complications were observed. Preoperative corneal thickness was identified as the sole factor affecting PRK outcomes. Analysis of the multiple model results indicated that a one-unit decrease in the preoperative pachymetry value increased the probability of success by a factor of 1.021 10.979 p0.001. The other independent variables did not exhibit a statistically significant effect on the probability of success p0.05.

 We conducted a retrospective study to evaluate the one-year outcomes of photorefractive keratectomy PRK and investigate the factors affecting its efficacy, The medical records of 196 eyes of 98 patients aged 18-40 years who underwent PRK between January 2021 and January 2023 for myopic, hypermetropic, andor astigmatic refractive errors, and follow-up examinations in the first postoperative year were included. Outcome measures included intraoperative and postoperative complications and objective refraction spherical equivalent SE at the postoperative 1st year visit. A one-year postoperative measurement of SE within  0.50 D was considered successful. Potential factors that may influence success, including age, sex, preoperative corneal thickness, visual acuity, refractive error type and magnitude, astigmatism type, and mean keratometry Kmean were investigated. All PRK surgeries were performed by the same surgeon, utilizing alcohol-assisted epithelial removal using a WaveLight EX 500 device. At the first year visit, 80.1 of patients achieved SE within  0.50 D. No intraoperative or postoperative complications were observed. Preoperative corneal thickness was identified as the sole factor affecting PRK outcomes. Analysis of the multiple model results indicated that a one-unit decrease in the preoperative pachymetry value increased the probability of success by a factor of 1.021 10.979 p0.001. The other independent variables did not exhibit a statistically significant effect on the probability of success p0.05.

 We conducted a retrospective study to evaluate the one-year outcomes of photorefractive keratectomy PRK and investigate the factors affecting its efficacy, The medical records of 196 eyes of 98 patients aged 18-40 years who underwent PRK between January 2021 and January 2023 for myopic, hypermetropic, andor astigmatic refractive errors, and follow-up examinations in the first postoperative year were included. Outcome measures included intraoperative and postoperative complications and objective refraction spherical equivalent SE at the postoperative 1st year visit. A one-year postoperative measurement of SE within  0.50 D was considered successful. Potential factors that may influence success, including age, sex, preoperative corneal thickness, visual acuity, refractive error type and magnitude, astigmatism type, and mean keratometry Kmean were investigated. All PRK surgeries were performed by the same surgeon, utilizing alcohol-assisted epithelial removal using a WaveLight EX 500 device. At the first year visit, 80.1 of patients achieved SE within  0.50 D. No intraoperative or postoperative complications were observed. Preoperative corneal thickness was identified as the sole factor affecting PRK outcomes. Analysis of the multiple model results indicated that a one-unit decrease in the preoperative pachymetry value increased the probability of success by a factor of 1.021 10.979 p0.001. The other independent variables did not exhibit a statistically significant effect on the probability of success p0.05.

 Fotorefraktif keratektominin FRK bir yıllık sonuçlarını değerlendirmek ve etkinliğini etkileyen faktörleri araştırmak için retrospektif bir çalışma yürüttük. Ocak 2021 ile Ocak 2023 tarihleri arasında miyopik, hipermetropik veveya astigmatik kırma kusurları nedeniyle FRK uygulanan 18-40 yaş arası 98 hastanın 196 gözünün tıbbi kayıtları ve ameliyat sonrası birinci yıldaki sonuçları çalışmaya dahil edildi. Ameliyat sonrası birinci yıldaki sferik eşdeğer SE ölçümünün  0.50 D içinde olması başarılı olarak kabul edilmiştir. Yaş, cinsiyet, ameliyat öncesi kornea kalınlığı, görme keskinliği, kırma kusurunun tipi ve büyüklüğü, astigmatizma tipi ve ortalama keratometri gibi başarıyı etkileyebilecek potansiyel faktörlerin başarıya etkisi araştırıldı. Tüm FRK ameliyatları aynı cerrah tarafından, WaveLight EX 500 cihazı kullanılarak alkol destekli epitel soyma yöntemiyle gerçekleştirilmiştir. Ameliyat sonrası birinci yıl vizitinde, hastaların 80.1inde  0.50 D içinde SE elde edildi. İntraoperatif veya postoperatif komplikasyon gözlenmedi. Ameliyat öncesi kornea kalınlığının FRKnın birinci yıl sonuçlarını etkileyebilecek tek faktör olduğu saptandı. Çoklu model sonuçlarının analizi, ameliyat öncesi pakimetri değerindeki bir birimlik düşüşün başarı olasılığını 1.021 10.979 kat artırdığını göstermiştir p0.001. Diğer bağımsız değişkenlerin başarı olasılığı üzerinde istatistiksel olarak anlamlı bir etkisi saptanmamıştır. p0.05.

Makale detayları

One-year Outcomes of Photorefractive Keratectomy and Factors Influencing Its Efficacy

Yazarlar:

Konuralp Yakar | Göksu Alaçamlı

Yayıncı:

Mugla Sitki Kocman University

Ana Başlıklar:

Klinik Tıp Bilimleri (Diğer)

Dergi:

Muğla Sıtkı Koçman Üniversitesi Tıp Dergisi Vol.12 Issue 2, pp.149-154

Belge Tipi:

Makale

Yayın Tarihi:

8/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001357189

pISSN:

2148-8118

Surgical Outcomes

Photorefractive Keratectomy

Refractive SurgeryCerrahi Sonuç

Fotorefraktif Keratektomi

Refraktif Cerrahi

Sayı

Makale detayları

One-year Outcomes of Photorefractive Keratectomy and Factors Influencing Its Efficacy

Yazarlar: Konuralp Yakar | Göksu Alaçamlı

Yayıncı: Mugla Sitki Kocman University

Ana Başlıklar: Klinik Tıp Bilimleri (Diğer)

Dergi: Muğla Sıtkı Koçman Üniversitesi Tıp Dergisi Vol.12 Issue 2, pp.149-154

Belge Tipi: Makale

Yayın Tarihi: 8/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001357189

pISSN: 2148-8118

Surgical Outcomes

Photorefractive Keratectomy

Refractive SurgeryCerrahi Sonuç

Fotorefraktif Keratektomi

Refraktif Cerrahi

Sayı

Yazarlar:

Konuralp Yakar | Göksu Alaçamlı

Yayıncı:

Mugla Sitki Kocman University

Ana Başlıklar:

Klinik Tıp Bilimleri (Diğer)

Dergi:

Muğla Sıtkı Koçman Üniversitesi Tıp Dergisi Vol.12 Issue 2, pp.149-154

Belge Tipi:

Makale

Yayın Tarihi:

8/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001357189

pISSN:

2148-8118