R. Hepworth, L., F. J. Rowe, M. F. Walker, J. Rockliffe, C. Noonan, C. Howard, and J. Currie. “Post-Stroke Visual Impairment: A Systematic Literature Review of Types and Recovery of Visual Conditions”. Ophthalmology Research: An International Journal, Vol. 5, no. 1, Nov. 2015, pp. 1-43, doi:10.9734/OR/2016/21767.