HFESISK: Hierarchical Expert-Fuzzy System and Illumination Surgical Keratoscope based diagnosis of diseases of eye: Diabetic Retinopathy, Glaucoma and Cataract. IJFANS. 2022;11(11):17317-17336. Accessed August 9, 2026. https://www.ijfans.org/index.php/Journal/article/view/12357