Evaluation of Viual Acuity and Color Viion in Normal Human Eye with a uturele Temporary Amniotic Membrane Patch

Purpoe To evaluate how uturele amniotic membrane patche may affect viual function in normal human eye. Deign Propective intervention tudy. Method Ten et of uturele amniotic membrane patch manufactured a PROKERA were inerted in one eye of ix normal patient. Four et (one each) were inerted in four patient, while ix et (three each) were inerted in two patient. Uncorrected ditant and near viual acuitie, color viion, amniotic membrane thickne meaured by pachymetry, and total ymptom core were compared before and after inertion. Reult Within 30 minute after inertion, mean ditant viual acuitie decreaed from −0.22 ± 0.06 to 0.92 ± 0.45 logarithmic minimum angle of reolution (logMAR). Among 10 et of PROKERA inerted, the larget optotype (1.0 logMAR) of the near viion chart could not be recognized in five, but color viion evaluated by Panel D-15 wa till preerved in all. Total ymptom core increaed to 47.8 ± 9.1 point (maximum, 100 point). Among ymptom, total core for foreign body enation (17.8 ± 3.6) and blurred viion (17.8 ± 4.4) were high. Lo of ditant viual acuity and increae of ymptom core were not correlated with amniotic membrane thickne, of which the mean wa 67.6 ± 25.2 μm. However, amniotic membrane that wa le opaque tended to provide relatively good viual acuitie. Concluion Becaue of the relative non-tranparency of uturele amniotic membrane patche in PROKERA, ditant and near viual acuitie decreaed in normal human eye. The foreign body enation noted after inertion i primarily derived from the rigid upporting kirt.