Abstract
Purpose: This study aimed to evaluate the effect of mesopic pupil size on corneal high-order aberrations in keratoconic eyes implanted with femtosecond laser-assisted intracorneal ring segments (ICRS) implantation procedure. Design: The study design involves a retrospective, consecutive case series. Patients and Methods: A total of 160 consecutive eyes of 133 patients with the diagnosis of keratoconus (93 eyes with keratoconus Grade 2 and 67 with keratoconus Grade 3) were included in the study. Keraring (Mediphacos, Belo Horizonte, Brazil) implantations were performed using femtosecond-assisted laser in Sohag Refractive Center, Sohag, Egypt, between September 2015 and September 2017. Pupil size and anterior corneal aberrations were measured by Scheimpflug placido topography (Sirius, CSO, Italy). Results: There were statistically significant changes between corneal aberrations preoperatively and postoperatively in both groups. Mesopic pupil size had no significant correlation with all corneal aberrations. Conclusion: Mesopic pupil size did not prove to be affecting corneal aberrations after femtosecond laser-assisted ICRS implantation for keratoconus.
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