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PURPOSE: To evaluate the influence of amniotic membrane on intraocular pressur e (IOP) measurement with the Tono-Pen. DESIGN: Observational case series. METHO D: Eight patients with partial limbal dysfunction who underwent penetrating kera toplasty were recruited. Amniotic membranes were patched just after keratoplasty . One week postoperatively, amniotic membranes were removed, and accuracy of IOP measurement with the Tono-Pen was evaluated with comparisons before and after the removal. RESULTS: No epithelial defects were detected after the removal of a mniotic membrane. Mean IOPs with and without amniotic membranes were 16.6 ±.3.0 mm Hg (mean ±.SD) and 16.0 ±.3.7 mm Hg, respectively. The difference was not statistically significant. CONCLUSIONS: Assessment of IOP with the Tono-Pen was observed to be accurate even when used over an amniotic membranes patch in case s who underwent penetrating keratoplasty.
PURPOSE: To evaluate the influence of amniotic membrane on intraocular pressur e (IOP) measurement with the Tono-Pen. DESIGN: Observational case series. METHO D: Eight patients with partial limbal dysfunction who underwent penetrating kera toplasty were recruited. Amniotic membranes were patched just after keratoplasty. One week postoperatively, amniotic membranes were removed, and accuracy of IOP measurement with the Tono-Pen was evaluated with comparisons before and after the removal. RESULTS: No epithelial defects were detected after removal of a mniotic membrane. Mean IOPs The difference was not significant significant. CONCLUSIONS: Assessment of IOP with the Tono-Pen was observed to be accurate (with mean ± SD) of 16.0 ± 3.0 mm Hg even when used over an amniotic membranes patch in case s who underwent penetrating keratoplasty.