Singh, Satendra, Kanchan Singh, Shashank Gupta, and Harpal Singh. “Awareness Regarding Presbyopia Among the Patients Presenting to Eye OPD at Tertiary Care Center”. International journal of health sciences 6, no. S3 (May 5, 2022): 4642–4650. Accessed August 18, 2024. https://sciencescholar.us/journal/index.php/ijhs/article/view/6952.