Hart D E, Simko M, Harris E
Harkness Eye Institute, Columbia Presbyterian Medical Center, New York, NY 10032.
J Am Optom Assoc. 1994 Jul;65(7):517-22.
Moisture chambers are prosthetic devices coupled to eyeglasses that slow the evaporation of the tears from the ocular surface. The need for moisture chamber glasses is most evident when a patient suffers from Sjögren's syndrome. This disease creates a pathologically dry eye from tear anomalies. Other ocular and systemic conditions can also cause a painfully dry eye.
The concept behind a moisture chamber is to significantly minimize the air flow over the ocular surface. The chamber provides a vapor barrier that functions passively to prevent tear evaporation. This is achieved by using a polyurethane plastic to produce a chamber contiguous with spectacles.
The chamber provides a humid environment behind the eyeglass lens and in front of the eye surface. Before deciding to produce a moisture chamber, one should consider the extensive time consumption involved in the production of these facially contoured customized devices.
It may take 3-6 hours for a technician who has not previously made a moisture chamber to construct the first one. As the proficiency increases, one may be able to streamline the process to approximately 3 hours. This approach was investigated because of the paucity of available information about the production of moisture chamber glasses and the acute need and benefit by pathological dry eye patients for these special glasses.
保湿罩是一种与眼镜相连的假体装置，可减缓眼表泪水的蒸发。当患者患有干燥综合征时，对保湿罩眼镜的需求最为明显。这种疾病会因泪液异常导致病理性干眼。其他眼部和全身性疾病也可能导致痛苦的干眼。
保湿罩背后的理念是显著减少眼表的气流。该罩提供了一个蒸汽屏障，被动地起到防止泪液蒸发的作用。这是通过使用聚氨酯塑料制作一个与眼镜相连的罩来实现的。
该罩在眼镜镜片后和眼表前提供了一个湿润的环境。在决定制作保湿罩之前，应考虑生产这些面部轮廓定制装置所涉及的大量时间消耗。
对于之前未制作过保湿罩的技术人员来说，制作第一个保湿罩可能需要3至6小时。随着熟练程度的提高，制作过程可能会简化至约3小时。由于关于保湿罩眼镜生产的可用信息匮乏，以及病理性干眼患者对这些特殊眼镜的迫切需求和益处，因此对这种方法进行了研究。
