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Sabahat Zubair, Arif Hussain, Nishat Wali, Maryam Sajid. Association of caffeine intake with pupil size and visual acuity. Ophthalmol. Pak [Internet]. 2023 Sep. 21 [cited 2024 Nov. 21];13(2):32-6. Available from: https://ophthalmologypakistan.com/op/ojs3.3/index.php/ophth_pakistan_journal/article/view/69