Noticewala, Vaibhavee, and Manisha Shastri. “A Study of Contrast Sensitivity Changes in Normal Individual and Diabetic Patients With and Without Diabetic Retinopathy”. International Journal of Research in Medical Sciences 5, no. 11 (October 27, 2017): 4840–4845. Accessed October 12, 2025. https://www.msjonline.org/index.php/ijrms/article/view/3925.