Background: Entropion is a common misalignment of eyelids where the border of the eyelid turns inward or inverts. It is more likely to develop in an older person. Trivially more people experience bilateral sickness than unilateral. Since women typically have smaller tarsal plates than men, it is believed that entropion occurs more commonly in women.Aim and objectives: To assess the impact of entropion operation on corneal health by evaluating the condition of the surface epithelium, tear film stability & visual acuity. Patients & methods: This cohort prospective trial was performed on 11 individuals (20 eyes) who underwent upper eye lid entropion surgery in the Ophthalmology Department at Benha University Hospitals. Results: There was a highly significant (p-value < 0.001) decreased percentage of positive fluorescein after surgery (1 patient, 5%) when compared with fluorescein before surgery (20 patients, 100%). Also, there was a highly statistically significant (p-value < 0.001) increased tear break up time (TBUT) after surgery {mean = 7.85 ± 2.4, median = 7 (6.25 – 8)} when compared with TBUT before surgery {mean = 5.0 ± 1.4, median = 5 (4 – 6.75)}.Conclusion: Our study demonstrated a noticeable enhancement in ocular surface integrity, including decreased corneal irritation, alleviated symptoms of discomfort, and improved tear film stability after the entropion repair procedure. These outcomes indicate a positive effect on the overall health and stability of the eye's surface subsequent to surgical intervention for upper eyelid entropion.