Fujishima H, Toda I, Yamada M, Sato N, Tsubota K
Department of Ophthalmology, Tokyo Dental College, Chiba, Japan.
Br J Ophthalmol. 1996 Jan;80(1):29-32. doi: 10.1136/bjo.80.1.29.
The corneal temperature change following each blink was investigated in patients with dry eye using an infrared radiation thermometer.
Twenty patients with dry eye and 20 normal controls were enrolled in this study. Subjects kept their eyes open for 10 seconds without blinking and corneal temperature was measured every second with a recently improved infrared radiation thermometer.
In the 20 patients with dry eye, corneal temperature change after keeping the eye open for 10 seconds was 0.21 (SD 0.06) degree C while it was 0.61 (0.28) degree C in the 20 normal patients (p = 0.0001). In an exponential equation, the inclination of the slope of a patient with dry eye was smaller than the normal. The correlation coefficient was r = 0.79 (0.16) in patients with dry eye and r = 0.90 (0.07) in normal patients. The mean K value of patients with dry eye was 0.20 (0.13)/second and that of normal subjects was 0.31 (0.19)/second (p = 0.03).
Findings demonstrate the usefulness of this thermometer for measuring corneal temperature in the evaluation of dry eye. Decrease in corneal temperature with each blink in patients with dry eye was smaller than in normal subjects.
使用红外辐射温度计研究干眼症患者每次眨眼后的角膜温度变化。
本研究纳入了20名干眼症患者和20名正常对照者。受试者睁眼10秒不眨眼，使用最近改进的红外辐射温度计每秒测量一次角膜温度。
20名干眼症患者在睁眼10秒后的角膜温度变化为0.21（标准差0.06）摄氏度，而20名正常患者为0.61（0.28）摄氏度（p = 0.0001）。在指数方程中，干眼症患者斜率的倾斜度小于正常患者。干眼症患者的相关系数r = 0.79（0.16），正常患者为r = 0.90（0.07）。干眼症患者的平均K值为0.20（0.13）/秒，正常受试者为0.31（0.19）/秒（p = 0.03）。
研究结果表明该温度计在干眼症评估中测量角膜温度方面有用。干眼症患者每次眨眼时角膜温度的下降幅度小于正常受试者。
