1. Krachmer JH, Mannis MJ, Holland EJ . Cornea, (3rd Edition) Mosby Elsevier: Oxford, 2011.
2. Matsubara M, Zieske JD, Fini ME . Mechanism of basement membrane dissolution preceding corneal ulceration. Invest Ophthalmol Vis Sci 1991; 32 (13): 3221–3237.
3. Hazlett LD . Corneal response to Pseudomonas aeruginosa infection. Prog Retin Eye Res 2004; 23 (1): 1–30.
4. Whitcher JP, Srinivasan M, Upadhyay MP . Corneal blindness: a global perspective. Bull World Health Organ 2001; 79 (3): 214–221.
5. Shah A, Sachdev A, Coggon D, Hossain P . Geographic variations in microbial keratitis: an analysis of the peer-reviewed literature. 2011 Br J Ophthalmol 95 (6): 762–767.