Corneal integrity and thickness of central fovea after phacoemulsification surgery in diabetic and nondiabetic cataract patients
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Submission date: 2016-01-05
Final revision date: 2016-05-30
Acceptance date: 2016-07-20
Online publication date: 2016-11-29
Publication date: 2018-06-19
Arch Med Sci 2018;14(4):818-825
Here we intended to investigate the changes in corneal endothelial cells and foveal thickness after phacoemulsification surgery on the eyes of diabetic and non-diabetic cataract patients.

Material and methods:
A total of 120 cataract patients who were scheduled for phacoemulsification surgery and intraocular lens implantation were recruited and divided into 2 categories according to the diagnosis of diabetes mellitus. Changes in integrity, endothelial cell density (ECD), coefficient of variation (CV), percentage of hexagonal cells (PHC), central corneal thickness (CCT), and central foveal thickness (CFT) were all recorded at preoperative day 1 and postoperative day 3, 1 week, 1 month, 3 months and 6 months.

None of the recorded variables showed any difference between the nondiabetic and diabetic groups before surgery (p > 0.05). During the postoperative 6 months, ECD and PHC decreased and CV increased in both groups (all ptime < 0.05), whereas CCT and CFT fluctuated in both groups significantly (both ptime < 0.05), with their individual peaks at postoperative 1 week in the diabetic group. The groups differed significantly in ECD, PHC, and CV at each time point postoperatively (all pgroup < 0.05). Furthermore, the diabetic group had improved CFT during the postoperative 1 month and higher CCT during the 6 months postoperatively than the nondiabetic group (all pgroup < 0.05). The time and group interactions were significant for ECD, CV, PHC, CCT and CFT (all pgroup × time < 0.05).

The diabetic group had more changes in corneal endothelial cells and foveal thickness than the nondiabetic group postoperatively.

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