Effect of Upper Eyelid Surgery on Vision and Corneal Topographic Changes Measured by Pentacam
(2025). Effect of Upper Eyelid Surgery on Vision and Corneal Topographic Changes Measured by Pentacam. EKB Journal Management System, 100(1), 4519-4530. doi: 10.21608/ejhm.2025.455572
. "Effect of Upper Eyelid Surgery on Vision and Corneal Topographic Changes Measured by Pentacam". EKB Journal Management System, 100, 1, 2025, 4519-4530. doi: 10.21608/ejhm.2025.455572
(2025). 'Effect of Upper Eyelid Surgery on Vision and Corneal Topographic Changes Measured by Pentacam', EKB Journal Management System, 100(1), pp. 4519-4530. doi: 10.21608/ejhm.2025.455572
Effect of Upper Eyelid Surgery on Vision and Corneal Topographic Changes Measured by Pentacam. EKB Journal Management System, 2025; 100(1): 4519-4530. doi: 10.21608/ejhm.2025.455572

Effect of Upper Eyelid Surgery on Vision and Corneal Topographic Changes Measured by Pentacam

The Egyptian Journal of Hospital Medicine
Volume 100, Issue 1, July 2025, Pages 4519-4530    PDF (880.68 K)
Document Type: Original Article
DOI: 10.21608/ejhm.2025.455572
Abstract
Background: Ptosis, dermatochalasis, and eyelid surgeries can exert pressure on the cornea, inducing surface reshaping and topographic alterations measurable with imaging technologies.
Objective: To compare the effects of upper eyelid surgery on visual acuity and corneal topography using Pentacam.
Patients and Methods: In this prospective study, 20 eyes from 12 patients with ptosis or dermatochalasis underwent corrective surgery. Ophthalmic examination and Pentacam corneal topography were performed preoperatively, and repeated at 1 and 3 months. Parameters included K1, K2, KM, corneal astigmatism, and central corneal thickness (CCT). Best-corrected visual acuity (BCVA) was also assessed.
Results: At 1 month, mean BCVA showed a significant but temporary change (p = 0.001), which was absent at 3 months (p = 1.000). Corneal astigmatism demonstrated a transient myopic shift of 0.2 D (p = 0.001) with axis change (p = 0.034) at 1 month; both were non-significant at 3 months (p = 0.119 and p = 0.342). Mean K1 and KM showed no differences at 1 month (p = 1.000), while K2 differed significantly (p = 0.001). At 3 months, significant differences were found in K1 (p = 0.017) and KM (p = 0.001), but not K2 (p = 0.173). CCT showed a transient 1-month change (p = 0.034), returning to baseline at 3 months (p = 1.000).
Conclusion: Ptosis and dermatochalasis impose chronic corneal pressure, producing measurable topographic alterations. Surgical correction relieves this pressure, inducing short-term astigmatic changes that normalize within 3 months, while effects on BCVA remain clinically negligible.
 
Keywords
Upper Eyelid Surgery; Corneal Topographic; Pentacam
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