Deniz KILIC, Muhammed Raşit SİREM, Yunus Naci AZİZ, Semra KOCA, İbrahim TOPRAK

Fotokromik Senofilcon A Kontakt Lensin Total Göz Aberasyonlarına Etkisi

Amaç: Fotokromik Senofilcon-A kontakt lensin (FKL) ortam aydınlatma koşullarında gözün optik aberasyonları (toplam (TA) ve yüksek sıralı aberasyonlar (YSA)) üzerindeki etkisini araştırmak. Yöntemler: Bu geriye dönük çalışmada, sağ gözlerine fotokromik olmayan Senofilcon-A kontakt lens (KL), sol gözlerine FKL takılan 20 gönüllü ele alındı. FKL aktif ve inaktif fazlarında ölçümler yapıldı. FKL’nin aktif fazına ulaşabilmek ultraviyole cihazı kullanıldı. Aberrometrik ölçümler 3 aşamada; lens takılmadan önce, FKL inaktifken ve FKL aktifken yapıldı. Ayrıca pupil boyutlarının aberasyonları etkileyebileceğinden aberasyonlar pupil çapları 3 mm, 6 mm ve maksimum genişlikte alındı. Bulgular: Her iki göz için başlangıçta TA ve YSA'lar açısından fark yoktu (3 mm, 6 mm ve maksimum pupil boyutu için, TA; P= 0,456; P= 0,687; P= 0,899 ve YSA; P = 0,226; P = 0,259; P = 0,442). Tüm pupil çaplarında, FKL grubunda KL grubuna göre toplam aberasyonlarda lens aktivasyonundan bağımsız olarak istatistiksel anlamlı olmayan artış bulundu (3 mm, 6 mm ve maksimum pupil boyutu için, aktif lens durumu; P = 0,523; P = 0,622; P = 0,244 ve inaktif lens durumu; P = 0,785; P = 0,357; P = 0,201, sırasıyla). FKL grubunda, YSA’larda istatistiksel anlamlı olmayan azalma bulundu (3mm,6mm ve maksimum pupil boyutu için, aktif lens durumu; P = 0,235; P = 0,661; P = 0,841 ve inaktif lens durumu; P = 0,245; P = 0,071; P = 0,231, sırayla). Sonuç: FKL, hem aktif hem de inaktif durumda fotokromik olmayan yumuşak kontakt lens ile benzer TA ve YSA'lara sahip olduğu bulundu. Değişken ışık koşullarında FKL tercih sebebi olabilirler.

Anahtar Kelimeler:

aberasyon, kontakt lens, fotokoromik, ultraviyole

Effect of Photochromic Senofilcon A Contact Lens on Total Aberrations of the Eye

Purpose: To investigate the effect of newly designed photochromic Senofilcon-A lens(PCL) on optical aberrations of the eye (total (TA) and high-order-aberrations (HOA)) under ambient illumination conditions. Methods: In this retrospective study, 40 eyes of 20 volunteers were fitted with a non-photochromic Senofilcon-A contact lens on the right eye, a PCL on left eye. Subjects were evaluated in terms of best-corrected visual-acuity. Aberrometric measurements were obtained at baseline(lens-free), with activated and deactivated PCL in 3 mm, 6 mm and maximum pupil size. Results: In lens-free situation there was no difference in terms of TA and HOAs(for 3mm, 6mm and max-pupil-size, TA; P= .456; P= .687; P= .899 and HOA; P = .226; P = .259; P = .442 respectively).In all pupil diameters, in the PCL group compared to the standard lens group, there was a slight increase in total aberrations independent of lens activation, which was not statistically significant(for 3mm,6mm and max-pupil-size, activated lens situation;P = .523; P = .622; P = .244 and deactivated lens situation; P = .785; P = .357; P = .201,respectively). Contrary to total aberrations, higher order aberrations were non-significantly slightly decreased in the PCL group(for 3mm,6mm and max-pupil-size, activated lens situation; P = .235; P = .661; P = .841 and deactivated lens situation;P = .245; P = .071; P = .231,respectively). Conclusion: The PCL produces similar TA and HOAs with the non-photochromic soft contact lens in both activated and deactivated situation. PCLs can be preferred for those who need uninterrupted vision in variable light conditions.

Keywords:

aberasyon, kontakt lens, fotokoromik, ultraviyole,

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