Acta clinica Croatica, Vol. 62. No. 2, 2023.
Izvorni znanstveni članak
https://doi.org/10.20471/acc.2023.62.02.05
The Effect of Palpebral Fissure Height in Primary Gaze Position on Tear Film Stability
Ana Čović
orcid.org/0009-0005-2098-0514
; Servus Anda Polyclinic for Ophthalmology, Split, Croatia
Igor Petriček
; Department of Ophthalmology, Zagreb University Hospital Center, Zagreb, Croatia; School of Medicine, University of Zagreb, Zagreb, Croatia
Martina Tomić
orcid.org/0000-0002-7535-3631
; Department of Ophthalmology, Vuk Vrhovac University Clinic for Diabetes, Endocrinology and Metabolic Diseases, Merkur University Hospital, Zagreb, Croatia
Sažetak
This study aimed to investigate the effect of palpebral fissure height in primary gaze
position in healthy individuals on tear film stability. In this cross-sectional study, 120 subjects (60 male
and female each) were enrolled and divided according to age into two groups, i.e., group 1 (aged 18-50
years) and group 2 (aged 51 and older). Palpebral fissure height on both eyes was measured in primary
gaze position with a clear plastic ruler held in a central vertical position between the upper and lower lid
margin, and the standard tear break-up time (TBUT) test was performed to evaluate tear film stability.
Palpebral fissure height was significantly higher in younger than older subjects in all measurements on
both eyes (p<0.001), and TBUT was shorter in older than in younger subjects. In all subjects included in
the study, palpebral fissure height was not related to TBUT (p=0.589). However, analyzing the two age
groups separately, a significant negative correlation was found between the palpebral fissure height and
TBUT in both groups of younger (p<0.001) and older (p=0.009) subjects. In conclusion, an enlarged exposed
ocular surface due to higher palpebral fissure height in healthy individual’s primary gaze position
negatively affects tear film stability expressed by TBUT.
Ključne riječi
Palpebral fissure height; Tear break-up time test; Healthy individuals
Hrčak ID:
308640
URI
Datum izdavanja:
1.8.2023.
Posjeta: 280 *