Martin D K, Fatt I
Acta Ophthalmol (Copenh). 1986 Oct;64(5):512-8. doi: 10.1111/j.1755-3768.1986.tb06964.x.
The anterior corneal surface temperature beneath a contact lens covering the cornea was determined from measurements of the average heat flow from the cornea to the atmosphere (efflux) in a group of 13 healthy young subjects. The average heat efflux was 1.1 X 10(-2) cal X cm-1 X sec-1. The mean corneal surface temperature of the same group was 34.5 degrees C for the open eye and 36.2 degrees C for the closed eye conditions. The anterior corneal surface temperature beneath a 0.07 mm thick hydrogel contact lens (40% water content) was found to be 34.6 degrees C (rise of 0.1 degree C) and 34.9 degrees C (rise of 0.4 degree C) beneath a 0.3 mm thick hydrogel contact lens (40% water content), using the measurement of corneal heat efflux and taking the contact lens to have a slight insulating effect. Contact lenses of higher water content caused a smaller rise in anterior corneal surface temperature than lenses of lower water content.
通过测量13名健康年轻受试者群体中从角膜到大气的平均热流(外流),确定了覆盖角膜的隐形眼镜下方角膜前表面温度。平均热外流为1.1×10⁻²卡×厘米⁻¹×秒⁻¹。同一组在睁眼条件下的平均角膜表面温度为34.5℃,闭眼条件下为36.2℃。利用角膜热外流测量,并考虑到隐形眼镜有轻微的隔热作用,发现在0.07毫米厚的水凝胶隐形眼镜(含水量40%)下方角膜前表面温度为34.6℃(升高0.1℃),在0.3毫米厚的水凝胶隐形眼镜(含水量40%)下方为34.9℃(升高0.4℃)。含水量较高的隐形眼镜导致角膜前表面温度升高幅度小于含水量较低的隐形眼镜。