Bhatia, R. P., Dhawan, S., Khanna, H. D., & Dash, A. (2010). Indirect evaluation of corneal apoptosis in contact lens wearers by estimation of nitric oxide and antioxidant enzymes in tears. Oman Journal of Ophthalmology, 3(2), 66-69. https://doi.org/10.4103/0974-620x.64229