The Effect Of Artificial Tears Containing Sodium Hyaluronate On Corneal Temperature
Published 2024
- 42nd Congress of the ESCRS
Reference: PO859
| Type: Poster
| DOI:
10.82333/g11t-jd71
Authors:
Busra Cidem* 1
, Eray Atalay 1
, Sertac Eroglu 2
, Onur Ozalp 1
1Department of Ophthalmology,Eskisehir Osmangazi University, Faculty of Medicine,Eskisehir,Türkiye, 2Department of Physics,Eskişehir Osmangazi University, Faculty of Science,Eskisehir,Türkiye
Purpose
To evaluate the effect of artificial tears containing sodium hyaluronate on corneal temperature.
Setting
Eskişehir Osmangazi University, Eskişehir, Turkey.
Methods
This prospective study included subjects employed at our ophthalmology clinic who had no ocular diseases. The examination room was standardized to have an average temperature of 24-26°C and a humidity level of 30-40%. Measurements were made after the subjects were acclimated to the clinic environment for at least 15 min. Artificial tears containing sodium hyaluronate were instilled only in the left eye of the subjects. One minute after the drops were instilled, the subjects were instructed to keep their eyes open for 30 seconds, and the average temperatures of the central cornea (3mm x 3mm) were recorded for both eyes using a thermal camera (FLIR, MA). Data were analyzed with the software Graphpad Prism version 10 (GraphPad Software, CA).
Results
A total of 60 eyes of 30 subjects were evaluated. The mean age of subjects was 34.1 ± 8.8 years and 53.3% were female. The initial temperature was 34.79°C in the right eye and 34.54°C in the left eye where the drops were instilled. The temperature decrease within 10 seconds was -0.0005°C, and -0.0023°C in the right and left eye, respectively (p<0.001).
Conclusions
Instilling artificial tears containing sodium hyaluronate resulted in a more rapid decrease in corneal temperature compared to not instilling artificial tears. Lipid-containing artificial tears preparations may be more effective in maintaining corneal temperature by further inhibiting evaporation.