1. Johnson RN, McDonald HR, Ai E, Jumper JM . Camera artifacts producing the false impression of growth of choroidal melanocytic lesions. Am J Ophthalmol 2003; 135: 711–713.
2. Pomerantzeff O . Equator-plus camera. Invest Ophthalmol 1975; 14 (5): 401–406.
3. Ducrey N, Pomerantzeff O, Schepens CL, Delori FC, Schneider J . Clinical trials with the Equator-Plus camera. Am J Ophthalmol 1977; 84 (6): 840–846.
4. Walsh JB, Garcia JPS, Nieto JC, Rosen RB, Garcia PT, Fradin S . Wide-Angle Digital Fundus Photography: Panoret 1000 vs RetCam 120. Invest Ophthalmol Vis Sci 2002; 43, E-Abstract 4370.
5. Optomap. Product description. Available at:
http://www.optos.com/en-GB/Professionals/Ophthalmology/Product-description/
. Accessed 20 October 2012.