Key takeaways: Patients with or without dry eye had greater palpebral fissure height after 3 days of blinking exercises. Tear breakup time and incomplete blink rate also significantly improved.

The vermilion border is the exposed mucous membrane or red portion of the upper lip, and the palpebral fissure length is the distance from the eye endocanthion to its exocanthion (16). The palpebral ...