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
* Autor za dopisivanje.
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: 333 *