کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2697333 | 1143902 | 2013 | 4 صفحه PDF | دانلود رایگان |
PurposeTo ascertain whether a difference in the permeability of the corneal epithelium to fluorescein (Pdc) exists between Asians and non-Asians.MethodsFrom a multi-study database we extracted 632 records of baseline, open-eye Pdc measurements taken on both eyes of 176 subjects. Subjects were awake for a minimum of 4 h before measurement, and were free of ocular disease and central corneal staining. Pdc was transformed by natural logarithm to better approximate normality for statistical tests.ResultsThe mean ln(Pdc) in the Asian group was significantly greater than in the non-Asian group [−2.34 ln(nm/s) vs. −2.58 ln(nm/s); p < 0.001].ConclusionsCompared with non-Asians, Asians exhibited a less negative ln(Pdc), which translates to a higher Pdc and a more permeable corneal epithelium. We speculate that this may be related to anatomic differences responsible for greater eyelid tension in Asians.
Journal: Contact Lens and Anterior Eye - Volume 36, Issue 5, October 2013, Pages 215–218