A 20 year-old female, Shruti, from Navi Mumbai, reported blurring of vision, right eye esotropia (a form of strabismus in which one or both eyes turns inward), diplopia (simultaneous perception of two images of a single object that may be displaced horizontally, vertically, diagonally) and headache for 20 days. A basic visual evaluation at Apollo Hospitals Navi Mumbai revealed she was unable to read or recognise faces using her right eye.