Analysis of Corneal Topography and Wavefront Aberrations after Upper Eyelid Blepharoplasty

Abstract

In this prospective, interventional study, the effect of upper eyelid blepharoplasty (UEB) surgery performed on dermatochalasis patients on the cornea was investigated by corneal topography, and its effect on visual function was investigated by examining visual acuity and corneal wavefront aberrations. Eighty eyelids of 40 patients were evaluated at least 1 month after surgery. No significant differences were found for visual acuity, flat keratometry, steep keratometry, average keratometry, topographic astigmatism, axis, central corneal thickness, and anterior chamber depth (p>0.05 for all). While preoperative anterior chamber volume (ACV) was 122.06±28.0 mm3, the postoperative ACV was 126.23±28.80 mm3 (p=0.045). Root mean square-higher-order aberrations for total corneal surface (RMS-HOAs) in a 6-mm optical zone decreased significantly from 0.331±0.115 μm to 0.255±0.106 μm (p<0.001). The RMS-coma (Z₃¹) (p=0.841), RMS-trefoil (Z₃³) (p=0.866), and RMS-quadrifoil (Z₄⁴) (p=0.932) values were similar. The RMS-spherical aberration (Z₄⁰) decreased significantly (0.398±0.301, 0.371±0.280, p=0.035). In conclusion, it was seen that UKB surgery can improve the topographic and aberrometric measurements of the cornea in the early postoperative period.

Keywords

• dermatochalasis
• corneal topography
• wavefront aberrations
• higher order aberrations

Üst Göz Kapağı Blefaroplasti Ameliyatı Sonrası Kornea Topografisi ve Korneal Wavefront Aberasyonların İncelenmesi

Abstract

Bu prospektif, girişimsel çalışma ile dermatoşalazis hastalarına uygulanan üst göz kapağı blefaroplasti (ÜKB) ameliyatının kornea üzerine etkisi korneal topografi ile, görme fonksiyonuna etkisi ise görme keskinliği ve korneal wavefront aberasyonlar incelenerek araştırıldı. Kırk hastanın 80 göz kapağı ameliyattan en az 1 ay sonra değerlendirildi. Ameliyat öncesi ve sonrası görme keskinliği, düz keratometri, dik keratometri, ortalama keratometri, topografik astigmatizma, aks, santral kornea kalınlığı ve ön kamara derinliği değerleri açısından anlamlı fark yoktu (hepsi için p >0,05) Ameliyat öncesi ön kamara hacmi (ACV) 122,06±28,0 mm3 iken, ameliyat sonrası ACV 126,23±28,80 mm3 (p=0,045) idi. 6 mm’lik optik zonda, total korneal yüzey için root mean square-higher-order aberrations (RMS-HOAs) 0,331±0,115 μm'den, 0,255±0,106 μm'ye düştü (p<0,001). RMS-koma (Z₃¹) (p=0,841), RMS-trefoil (Z₃³) (p=0,866) ve RMS-quadrifoil (Z₄⁴) (p=0,932) değerleri benzerdi. RMS- spherical aberration (Z₄⁰) istatistiksel olarak anlamlı azaldı (0,398±0,301, 0,371±0,280, p=0,035). Sonuç olarak, ÜKB ameliyatı sonrası erken dönemde, korneal topografik ve aberometrik ölçümlerde değişiklikler gözlemlenmiştir.

Keywords

• dermatoşalazis
• kornea topografisi
• wavefront aberasyonları
• yüksek sıralı aberasyonlar

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