Blinking pattern and dry eye: A videographic analysis
Author: Guy Ben simon
Base Hospital / Institution: Sheba Medical Center
ePoster presentation
Abstract ID: 24-124
Purpose
To explore possible association between blinking pattern and dry eye
Methods
A single center, cross sectional study. Two groups of patients participated in this study: patients diagnosed with dry eye syndrome vs. patients without dry eye diagnosis. The voluntary blink was recorded using a smart-phone high-speed camera, and the videos were blindly analyzed by a senior oculoplastic surgeon (GBS) for brow lift, blepharospasm, imbrication, lagophthalmos, margin entropion, retraction, lid separation delay, lash ptosis, dermatochalasis, and an increase in tear lake. Patients were assessed for dry eye using the ocular surface disease index score (OSDI), tear break-up time (TBUT), Schirmer’s test, fluorescein and lissamine green stains. For each patient only the right eye was included to avoid inter eye correlation.
Results
54 patients were included, with 27 in each group. The mean age was 65.3 years (range 26-87), and 31 (57%) were females. The mean visual acuity was 20/26. Dry eye patients were significantly younger (61 vs. 70 years, P=0.03). Additionally, they had a shorter tear breakup time (7 vs. 9 seconds), a lower Schirmer score (9 vs. 14mm), and increased fluorescein staining (P ≤ 0.05 for all). Lissamine green staining was similar in both groups. The female gender was more prevalent in the dry eye group (78% vs. 37%, P=0.002, chi-square). Blepharitis and MGD were both associated with the diagnosis of dry eye. Initially, none of the blinking characteristics were more prevalent in the dry eye group. However, we noticed that 10 patients in the control group had OSDI scores similar to those of dry eye patients. Therefore, the data were reanalyzed according to OSDI score. Patients with moderate to severe dry eye (OSDI ≥ 23) experienced more eyelid margin rotation during blinking (P=0.037, chi-square).
Conclusion
Patients with moderate to severe dry eye, as indicated by their OSDI score, showed more eyelid margin rotation during blinking. This, along with the increased prevalence of blepharitis and MGD, may suggest potential surgical treatment options to address the ocular surface disturbances in dry eye patients
Additional Authors
| First name | Last name | Base Hospital / Institution |
|---|---|---|
| Roee | Arnon | Sheba Medical Center |
| Joel | Gutowitz | Sheba Medical Center |
| Orit | Ezra | Sheba Medical Center |
| Irit | Bareequet | Sheba Medical Center |
| Daphna | Landau | Sheba Medical Center |
