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在软隐形眼镜佩戴者中,干燥感和眼睛表面温度以及结膜血流之间的关联
Takashi Itokawa1, Yukinobu Okajima2, Hiroko Iwashita1
1Department of Ophthalmology, Toho University Graduate School of Medicine, Tokyo, Japan.
概括
软隐形眼镜佩戴者的干燥与眼睛表面温度和结膜血流有关. 较低的温度和较高的血流与增加的干燥感相关,这表明这些是关键指标.
科学领域:
- 眼科医生 眼科 眼科
- 隐形眼镜技术 隐形眼镜技术
- 眼睛表面疾病 眼睛表面疾病
背景情况:
- 软隐形眼镜 (SCL) 的磨损与眼睛干燥有关.
- 了解干燥的生理相关性对于改善SCL舒适性至关重要.
研究的目的:
- 为了研究SCL佩戴者的干燥感,眼表面温度 (OST) 和结膜血流 (CBF) 之间的关系.
- 在空气流刺激后,比较两种不同的每日一次性水凝SCLs之间的这些参数.
主要方法:
- 21名SCL佩戴者使用两种类型的水凝透镜 (narafilcon A和delefilcon A) 进行评估.
- 测量了眼表面温度 (OST),结膜血流 (CBF),撕裂半径高度 (TMH) 和非侵入性撕裂破裂时间 (NIBUT).
- 在10分钟的3米/秒空气流刺激后,使用视觉模拟尺度 (VAS) 量化干燥度.
主要成果:
- 干燥感与OST的负相关性很弱 (r = -0.375) 和与CBF的负相关性很弱 (r = 0.339).
- 与纳拉菲尔康A镜片组相比,德利菲尔康A镜片组在TMH,NIBUT和VAS得分方面表现明显更好.
- 与纳拉菲尔康A镜片相比,戴尔菲尔康A镜片的OST和CBF变化显著小于纳拉菲尔康A镜片,这表明生理障碍较少.
结论:
- 在SCL佩戴者中,干燥感与OST降低和CBF增加有关.
- OST和CBF测量是有效的客观工具,用于评估隐形眼镜佩戴者的主观干燥.
- 与纳拉菲尔康A镜头相比,德利菲尔康A镜头在保持眼睛舒适方面表现优越.
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