《Table 1 Hemodynamic parameters of retrobulbar vessels beforeand after application of hot compress (

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《Ocular surface heat effects on ocular hemodynamics detected by real-time measuring device》

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CRA:Central retinal artery；LPCA:Long posterior ciliary artery；OA:Ophthalmic artery；CRV:Central retinal vein；PSV:Peak systolic velocity；EDV:End diastolic velocity；RI:Resistance index；Vm:Mean velocity.

Measurement of Retrobulbar Hemodynamic Parameters Before and After Application of Hot Compress CDFIclearly showed the blood flow before and after the application of a hot compress.Figure 7 showed the contrast between the retrobulbar blood flow before and after application of the hot compress，in ultrasound images.The hemodynamic parameters for each of the vessels were listed in Table 1.In the CRA，the PSV was 22.50±1.80 mm Hg and 27.61±1.29 mm Hg before and after heating，respectively（P=0.004），and the EDVwas 22.50±1.80 mm Hg and 27.61±1.29 mm Hg（P=0.044），respectively.Both of these differences were statistically significant.The corresponding RI values were 0.48±0.09 mm Hg and 0.48±0.07 mm Hg（P=0.921），respectively，a difference which was not statistically significant.In the LPCA，the PSVwas 22.78±1.62 mm Hg and 25.19±1.88 mm Hg（P=0.009）before and after heating，respectively，and the EDV was12.30±1.87 mm Hg and 14.22±1.46 mm Hg（P=0.034），respectively.Both differences were statistically significant.The RI values were 0.47±0.07 mm Hg and 0.45±0.05 mm Hg（P=0.470），respectively，a difference which was not statistically significant.In the OA，the PSV was 24.44±2.85 mm Hg and 27.44±3.79 mm Hg（P=0.026）before and after heating，respectively，which represents a statistically significant difference.The EDV was 13.29±3.14 mm Hg and 15.52±3.29 mm Hg（P=0.141），respectively，and the respective RI values were0.46±0.10 mm Hg and 0.45±0.07 mm Hg（P=0.647）.These differences were not statistically significant.In the CRV，the Vm was 5.21±0.52 mm Hg and 6.13±0.95 mm Hg（P=0.043）before and after heating，respectively，which was a statistically significant difference.The analysis showed that the PSVand EDV of the CRA and LPCA，as well as the PSV of the OA，significantly increased after the application of the hot compress.The Vm in the CRV also significantly increased after the hot compress application.There were no significant changes in the EDV of the OA nor the RI value of each artery.