ESCRS - PP26.04 - Evaluation Of Thermography Of Ocular Surface And Conjunctiva After Vr Viewing

Evaluation Of Thermography Of Ocular Surface And Conjunctiva After Vr Viewing

Published 2023 - 41st Congress of the ESCRS

Reference: PP26.04 | Type: Free paper | DOI: 10.82333/syj6-mj62

Authors: Chang Won Park* 1 , Tae Young Gil 2 , Ying Jun Li 3 , Ji Won Park 4

1Dept. of Optometry,Baekseok Culture University,Cheonan si,Korea, Republic Of, 2Department of Ophthalmology,Min Eye Clinic,Cheongju si,Korea, Republic Of, 3Department of Ophthalmology,Fuyang People’s Hospital of Anhui Medical University,Fuyang, Anhui,China, 4Hanil General Hospital(KEPCO Medical Foundation),Seoul si,Korea, Republic Of

Purpose

After watching VR(Virtual reality) for 40 minutes with healthy college students in their 20s, an innovative dry eye test method(Korea Patent, No. 10-1662775) using a thermal imaging camera was applied to observe the temperature change of the ocular surface and the conjunctiva.

Setting

25 subjects diagnosed with normal eyes using TBUT, Schirmer test, and self-diagnosis questionnaire(McMonnies test), which are traditional dry eye test methods, were asked to watch a VR HMD device (Oculus quest II, Oculus, USA), and then noninvasively.

Methods

Using the dry eye thermography system (DET system) as a method, the temperature change of the ocular surface and the temperature of the conjunctiva were measured(IRB no.2-7008132-A-N-01).

Results

The subject's ocular surface tear film was measured in the central, nasal, temporal, superior and inferior area. After instructing the subject to open their eye lid for 5 seconds, the resulting values ​​of the ocular surface temperature were measured three times and the average value was taken. At the results of the temperature change, before VR viewing, −0.13±0.05, −0.11±0.06, −0.14±0.07, −0.13±0.06, −0.11±0.08(℃/sec), and immediately after viewing, −0.19±0.05, −0.14±0.07, −0.15±0.06, −0.17±0.09, −0.12±0.06 (℃/sec) were significant in the center and superior area(p<0.05). 

Conclusions

After VR viewing, the temperature change on the ocular surface tended to decrease significantly. VR viewing is assessed to increase tear film evaporation. The temperature changes on the ocular surface, observed with a thermal camera, were objective values to assess the stability of tear films, and might provide useful data for studies related to dry eye syndrome.