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Abstract ID: 24-114

Blinking pattern and dry eye: A videographic analysis

Guy Ben Simon


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. Additional comparative analysis was performed using the OSDI score.


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= 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

Roee Arnon – Sheba Medical Center

Orit Ezra – Sheba Medical Center

Irir Barequet – Sheba Medical Center

Daphna Landau – Sheba Medical Center