水凝胶隐形眼镜在可控环境条件下的脱水

Hydrogel contact lens dehydration in controlled environmental conditions.

作者信息

Morgan Philip B, Efron Nathan, Morgan Sarah L, Little Simon A

机构信息

Eurolens Research, Department of Optometry and Neuroscience, University of Manchester Institute of Science and Technology, Manchester, UK.

出版信息

Eye Contact Lens. 2004 Apr;30(2):99-102. doi: 10.1097/01.icl.00000118532.90284.09.

DOI:10.1097/01.icl.00000118532.90284.09

PMID:15260358

Abstract

PURPOSE

To ascertain the impact of environmental conditions on hydrogel contact lens dehydration.

METHODS

Six young adult subjects wore an ACUVUE lens in one eye and a Proclear lens in the other eye for 200 minute sessions in arid, temperate, and arctic conditions, maintained in a purpose-built environmental chamber in an aerospace medical facility. Dehydration was determined by measuring lens water content before and after each session using a soft contact lens refractometer. Comfort of the lenses was assessed at the conclusion of each session.

RESULTS

Lens dehydration was similar for the three environmental conditions (F2 = 0.3, P = 0.75). There was less dehydration with the Proclear lens compared with ACUVUE lens (F1 = 43.0, P = 0.001). No differences were detected with respect to lens comfort between the three environmental conditions (F2 = 2.0, P = 0.18) or the two lens types (F1 = 1.4, P = 0.29).

CONCLUSION

Soft contact lens dehydration is unaffected by environmental extremes.

摘要

目的

确定环境条件对水凝胶隐形眼镜脱水的影响。

方法

六名年轻成年受试者，一只眼睛佩戴ACUVUE镜片，另一只眼睛佩戴Proclear镜片，在干旱、温带和北极条件下进行200分钟的实验，实验在航空航天医疗设施中专门建造的环境舱内进行。使用软性隐形眼镜折射仪在每次实验前后测量镜片含水量，以确定脱水情况。在每次实验结束时评估镜片的舒适度。

结果

三种环境条件下镜片脱水情况相似（F2 = 0.3，P = 0.75）。与ACUVUE镜片相比，Proclear镜片的脱水情况较少（F1 = 43.0，P = 0.001）。在三种环境条件之间（F2 = 2.0，P = 0.18）或两种镜片类型之间（F1 = 1.4，P = 0.29），未检测到镜片舒适度的差异。