Abstract：
OBJECTIVE: This study was conducted to compare the ocular surface temperature in keratoconus eyes with that in normal eyes.
METHODS: A total of 27 participants were enrolled, with 10 and 17 participants in the keratoconus and control groups, respectively. Participants in the control group underwent an ophthalmic slit lamp examination and ocular thermography, while an additional corneal tomography was performed for those in the keratoconus group.
RESULTS: For patients with keratoconus, the mean upper eyelid temperature (UET) was 32.36 ± 1.02 °C, inner canthus temperature (ICT) was 34.25 ± 0.83 °C, outer canthus temperature (OCT) was 33.62 ± 0.96 °C, initial central corneal temperature (initial CCT) was 33.04 ± 1.03 °C, sixth-second CCT (6 s-CCT) was 32.67 ± 1.19 °C, and the mean change in CCT measured within 6 s (change in CCT within 6 s) was 0.36 ± 0.26 °C. For controls, the values for UET, ICT, OCT, initial CCT, 6 s-CCT, and change in CCT within 6 s were 32.35 ± 1.13 °C, 34.14 ± 0.91 °C, 33.51 ± 1.02 °C, 33.22 ± 1.01 °C, 32.99 ± 1.01 °C, and 0.22 ± 0.17 °C, respectively. Except for the change in CCT within 6 s (p = 0.022), no significant differences were observed in UET (p = 0.973), ICT (p = 0.659), OCT (p = 0.697), initial CCT (p = 0.556) or 6 s-CCT (p = 0.310) between the two groups.
CONCLUSIONS: The keratoconus eyes showed faster changes in CCT and evaporation of tear film after opening the eyes. Therefore, the keratoconus eyes had a higher incidence of dry eye conditions.
METHODS: A total of 27 participants were enrolled, with 10 and 17 participants in the keratoconus and control groups, respectively. Participants in the control group underwent an ophthalmic slit lamp examination and ocular thermography, while an additional corneal tomography was performed for those in the keratoconus group.
RESULTS: For patients with keratoconus, the mean upper eyelid temperature (UET) was 32.36 ± 1.02 °C, inner canthus temperature (ICT) was 34.25 ± 0.83 °C, outer canthus temperature (OCT) was 33.62 ± 0.96 °C, initial central corneal temperature (initial CCT) was 33.04 ± 1.03 °C, sixth-second CCT (6 s-CCT) was 32.67 ± 1.19 °C, and the mean change in CCT measured within 6 s (change in CCT within 6 s) was 0.36 ± 0.26 °C. For controls, the values for UET, ICT, OCT, initial CCT, 6 s-CCT, and change in CCT within 6 s were 32.35 ± 1.13 °C, 34.14 ± 0.91 °C, 33.51 ± 1.02 °C, 33.22 ± 1.01 °C, 32.99 ± 1.01 °C, and 0.22 ± 0.17 °C, respectively. Except for the change in CCT within 6 s (p = 0.022), no significant differences were observed in UET (p = 0.973), ICT (p = 0.659), OCT (p = 0.697), initial CCT (p = 0.556) or 6 s-CCT (p = 0.310) between the two groups.
CONCLUSIONS: The keratoconus eyes showed faster changes in CCT and evaporation of tear film after opening the eyes. Therefore, the keratoconus eyes had a higher incidence of dry eye conditions.
摘要：
目的：本研究旨在比较圆锥角膜眼与正常眼的眼表温度。
方法：共纳入27名参与者，圆锥角膜和对照组有10和17名参与者，分别。对照组的参与者接受了眼科裂隙灯检查和眼温图,同时对圆锥角膜组的患者进行了额外的角膜断层扫描。
结果：对于圆锥角膜患者，平均上眼睑温度（UET）为32.36±1.02°C，内眼角温度（ICT）为34.25±0.83°C，眼外温度（OCT）为33.62±0.96°C，初始中央角膜温度（初始CCT）为33.04±1.03°C，第六秒CCT（6s-CCT）为32.67±1.19°C，在6s内测量的CCT的平均变化(6s内CCT的变化)为0.36±0.26°C。对于控件，UET的值，ICT,OCT,初始CCT,6s-CCT,6s内CCT的变化为32.35±1.13°C，34.14±0.91°C,33.51±1.02°C,33.22±1.01°C,32.99±1.01°C,和0.22±0.17°C，分别。除了6s内CCT的变化（p=0.022）外，在UET中没有观察到显著差异(p=0.973)，ICT（p=0.659），OCT(p=0.697),两组之间的初始CCT（p=0.556）或6s-CCT（p=0.310）。
结论：圆锥角膜在睁开眼睛后显示出更快的CCT变化和泪膜蒸发。因此,圆锥角膜眼干眼症的发生率较高。
方法：共纳入27名参与者，圆锥角膜和对照组有10和17名参与者，分别。对照组的参与者接受了眼科裂隙灯检查和眼温图,同时对圆锥角膜组的患者进行了额外的角膜断层扫描。
结果：对于圆锥角膜患者，平均上眼睑温度（UET）为32.36±1.02°C，内眼角温度（ICT）为34.25±0.83°C，眼外温度（OCT）为33.62±0.96°C，初始中央角膜温度（初始CCT）为33.04±1.03°C，第六秒CCT（6s-CCT）为32.67±1.19°C，在6s内测量的CCT的平均变化(6s内CCT的变化)为0.36±0.26°C。对于控件，UET的值，ICT,OCT,初始CCT,6s-CCT,6s内CCT的变化为32.35±1.13°C，34.14±0.91°C,33.51±1.02°C,33.22±1.01°C,32.99±1.01°C,和0.22±0.17°C，分别。除了6s内CCT的变化（p=0.022）外，在UET中没有观察到显著差异(p=0.973)，ICT（p=0.659），OCT(p=0.697),两组之间的初始CCT（p=0.556）或6s-CCT（p=0.310）。
结论：圆锥角膜在睁开眼睛后显示出更快的CCT变化和泪膜蒸发。因此,圆锥角膜眼干眼症的发生率较高。
