Corneal topographic changes and surgically induced astigmatism following combined phacoemulsification and 25-gauge vitrectomy.
OBJECTIVE
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 2ndpostoperative week and then returned to baseline values thereafter. Mean SIA gradually decreased to reach 0.12 D by the 6thpostoperative month.


CONCLUSIONS
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 3rdpostoperative month but it continued till the 6thmonth postoperatively.
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.
Khulood Mohammed
KM
Sayed
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.
Mahmoud M
MM
Farouk
Department of Ophthalmology and Visual Neuroscience, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan.
Takashi
T
Katome
Department of Ophthalmology and Visual Neuroscience, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan.
Toshihiko
T
Nagasawa
Department of Ophthalmology and Visual Neuroscience, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan.
Takeshi
T
Naito
Department of Ophthalmology and Visual Neuroscience, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan.
Yoshinori
Y
Mitamura
25-gauge sutureless vitrectomy; corneal topographic indices; phacoemulsification; surgically induced astigmatism