Sabahat Zubair, Arif Hussain, Nishat Wali, and Maryam Sajid. 2023. “Association of Caffeine Intake With Pupil Size and Visual Acuity”. Ophthalmology Pakistan 13 (2):32-36. https://ophthalmologypakistan.com/op/ojs3.3/index.php/ophth_pakistan_journal/article/view/69.