Turkiye Klinikleri Journal of Ophthalmology

.: ORIGINAL RESEARCH
Evaluation of the Effects of Photochromic Contact Lens on Visual Quality and Pupillary Diameter: Cross-Sectional Study
Fotokromik Kontakt Lensin Görme Kalitesi ve Pupilla Çapı Üzerine Etkilerinin Değerlendirilmesi: Kesitsel Çalışma
Ersin MUHAFİZa, Şerif NİZAMOĞULLARIa
aDepartment of Ophthalmology, Kafkas University Faculty of Medicine, Kars, Türkiye
Turkiye Klinikleri J Ophthalmol. 2022;31(4):216-22
doi: 10.5336/ophthal.2021-87854
Article Language: EN
Full Text
ABSTRACT
 Objective: To evaluate the effects of photochromic contact lenses (CL) on contrast sensitivity, aberrations and pupillary diameter in indoor environments. Material and Methods: Contrast sensitivity of the participants was measured and their pupillography under scotopic, mesopic and photopic illumination and topography were taken. Transparent senofilcon A (Acuvue Oasys hydraLuxe) CL was inserted to one eye of the subjects and photochromic senofilcon A (Acuvue Oasys with transitions) CL was inserted to the other eye. Subsequently, contrast sensitivity of subjects was measured, pupillography and topography were taken again over the CL. Aberration values were obtained from the topography. In terms of occurred changes, the eye with photochromic CL was compared with the other eye. Results: Before CL insertion, there was no significant difference between the photochromic side and the other side in terms of all parameters examined (for all; p>0.05). After CL insertion, there was no significant change in scotopic, mesopic and photopic pupil diameters on both the photochromic and transparent sides compared to the pre-CL condition (for all; p>0.05), high order aberrations increased (p0.05). Conclusion: Using the photochromic CL in indoors does not lead to different results than the transparent CL in terms of visual quality and pupil diameters. Both lenses cause a decrease in contrast sensitivity at high frequencies.

Keywords: Photochromic contact lens; contrast sensitivity; pupillary diameter; high-order aberrations
ÖZET
 Amaç: Fotokromik kontakt lenslerin (KL) iç ortamlarda kontrast duyarlılık, aberasyonlar ve pupilla çapı üzerine etkilerini değerlendirmektir. Gereç ve Yöntemler: Katılımcıların kontrast duyarlılıkları ölçülüp topografileri ve skotopik, mezopik ve fotopik aydınlatmada pupillografileri çekildi. Bireylerin rastgele bir gözlerine şeffaf senofilcon A KL (Acuvue Oasys hydraLuxe) diğer gözlerine ise fotokromik senofilcon A (Acuvue Oasys with transitions) KL takıldı. Daha sonra bireylerin tekrar kontrast duyarlılığı ölçülüp KL üzerinden topografi ve pupillografileri çekildi. Topografiden aberasyon değerleri elde edildi. Meydana gelen değişiklikler açısından fotokromik KL takılan göz ile diğer göz karşılaştırıldı. Bulgular: KL takılmadan önce fotokromik taraf ile diğer taraf arasında incelenen bütün parametreler açısından anlamlı bir fark yok idi (hepsi için; p>0,05). KL takıldıktan sonra hem fotokromik hem de şeffaf tarafta KL öncesi duruma göre skotopik, mezopik ve fotopik pupil çaplarında anlamlı bir değişiklik olmadı (hepsi için; p>0,05), yüksek sıralı aberasyonlar arttı (p0,05). Sonuç: İç mekânlarda çalışmamızda değerlendirilen fotokromik veya şeffaf KL'nin kullanılması görme kalitesi ve pupil çapları açısından farklı sonuçlara yol açmamaktadır. Her iki KL de yüksek frekanslarda kontrast duyarlılıkta düşüşe yol açmaktadır.

Anahtar Kelimeler: Fotokromik kontakt lens; kontrast duyarlılık; pupilla çapı; yüksek sıralı aberasyonlar
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