Factors Influencing Subjective Visual Quality in Human Eyes

To assess subjective visual symptoms using the QoV questionnaire, measure pupil size using the Atongmu Pupillometer, measure wavefront aberrations using the OPD-Scan III Aberrometer, and measure/calculate the effective optical zone using the Pentacam system. The relationships between pupil size, higher-order aberrations (HOAs), effective optical zone after refractive surgery, and subjective visual symptoms will be explored.

NCT Number	NCT07518316
Lead Sponsor	Tianjin Eye Hospital
Conditions	Corneal Wavefront Aberration, Refractive Errors
Enrollment	300 participants
Start Date	2026-03-18
Primary Completion	2026-09-01 (estimated)
Study Completion	2026-09-01 (estimated)
Updated on ClinicalTrials.gov	2026-04-08