Ciszewski P, Piórkowska I, Grabowska A, Godela N, Sirek S, Wyględowska- Promieńska D. Comparison of Snellen and ETDRS charts in visual acuity assessment: a systematic review. Ophthatherapy [Internet]. 2025Oct.21 [cited 2026May26];12(3):213-8. Available from: https://www.journalsmededu.pl/index.php/ophthatherapy/article/view/3216