Alikaputri, F.R. 2026. Improving The Quality Of Eye Care Services Using The Servqual Method, Importance–Performance Analysis, And The 5 Whys Analysis (Case Study: Abc Eye Clinic). Eduvest - Journal of Universal Studies. 6, 6 (Jun. 2026), 7232–7247. DOI:https://doi.org/10.59188/eduvest.v6i6.53235.