Purpose. To evaluate changes in corneal sensitivity and subbasal nerve density after pterygium excision. Methods. This prospective\ntrial included 22 eyes with nasal primary pterygium and 18 controls. Corneal sensitivity was evaluated using a Cochetâ??Bonnet\nesthesiometer in the nasal, superior, temporal, inferior, and center quadrants of the cornea before surgery and 10 days, 1 month,\nand 3months after surgery. The central cornea was analyzed using in vivo confocal microscopy (IVCM) before surgery and 1 and 3\nmonths after surgery. Subbasal nerve density and other nerve parameters were analyzed using NeuronJ. Nerve tortuosity was\nevaluated and graded in individual IVCM scans. The tear film break-up time (TBUT) test and Schirmerâ??s test were performed\nbefore surgery, as well as 1 and 3 months after surgery. All the same tests were performed in the controls. Results. All affected eyes\nshowed a significant increase in corneal sensitivity in the nasal corneal quadrant after surgery when compared with preoperative.......................
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