Corneal topographic changes and surgically induced astigmatism following combined phacoemulsification and 25-gauge vitrectomy

Khulood Mohammed Sayed; Mahmoud M Farouk; Takashi Katome; Toshihiko Nagasawa; Takeshi Naito; Yoshinori Mitamura

doi:10.18240/ijo.2017.01.12

Corneal topographic changes and surgically induced astigmatism following combined phacoemulsification and 25-gauge vitrectomy

Int J Ophthalmol. 2017 Jan 18;10(1):72-76. doi: 10.18240/ijo.2017.01.12. eCollection 2017.

Authors

Khulood Mohammed Sayed¹, Mahmoud M Farouk¹, Takashi Katome², Toshihiko Nagasawa², Takeshi Naito², Yoshinori Mitamura²

Affiliations

¹ Department of Ophthalmology and Visual Neuroscience, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan; Department of Ophthalmology, Sohag Faculty of Medicine, Sohag University, 82524 Sohag, Egypt.
² Department of Ophthalmology and Visual Neuroscience, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan.

Abstract

Aim: To evaluate corneal topographic changes and surgically induced astigmatism (SIA) after combined phacoemulsification and 25-gauge transconjunctival sutureless vitrectomy (25-G TSV).

Methods: A retrospective study on 96 eyes of 87 patients who underwent combined phacoemulsification and 25-G TSV. The different topographic parameters and SIA were analyzed pre- and postoperatively.

Results: There was no significant changes in corneal topographic parameters at different follow up periods. Only surface regularity index changed significantly in the 2^nd postoperative week and then returned to baseline values thereafter. Mean SIA gradually decreased to reach 0.12 D by the 6^th postoperative month.

Conclusion: Corneal surface and astigmatic changes are insignificant in either early or late postoperative periods following combined phacoemulsification and 25-G TSV. The SIA was the minimum among previous reports on sutureless vitrectomy alone or combined with phacoemulsification. Improvement of SIA did not stop at the 3^rd postoperative month but it continued till the 6^th month postoperatively.

Keywords: 25-gauge sutureless vitrectomy; corneal topographic indices; phacoemulsification; surgically induced astigmatism.