Tokarzewski , Tomasz. “Refractive Correction Needs of Patients over 40”. OphthaTherapy. Therapies in Ophthalmology 3, no. 4 (December 30, 2016): 294-298. Accessed May 20, 2025. https://www.journalsmededu.pl/index.php/ophthatherapy/article/view/654.