Abstract
after anterior segment surgery the anatomical structures and in particular corneal metabolism and corneal trophic are reduced. The corneal wound healing might be monitored by measuring corneal sensitivity. In a prospective study of 1 year corneal sensation of 26 patients, age = 72.49 +/- 11.09 years, after phacoemulsification with scleral tunnel is examined. Corneal sensitivity is measured with the Draeger aesthesiometer in the corneal center, in the 6 o'clock and 12 o'clock position before and 4 weeks, 4 months and 1 year after the operation. The preoperative corneal sensitivity thresholds before the operation are with 11.61 +/- 10.49 x 10(-5) N in the 12 o'clock position, in the center with 2.43 +/- 2.57 x 10(-5) N and in the 6 o'clock position with 11.86 +/0 10.37 x 10(-5) N normal. Even 1 year after surgery corneal sensitivity is markedly reduced with 257.08 +/- 306.71 x 10(-5) N, 107.77 +/- 246.76 x 10(-5) N and 82.81 +/- 140.77 x 10(-5) N in the 6 o'clock position. Even 1 year after phacoemulsification corneal sensitivity is definitely hyposensitive in the center and descretely hypotensitive in the periphery at the 6 o'clock.
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