#$%^&*AU2020220119A120201001.pdf#####- 33 ABSTRACT A light guide for an ophthalmological topographer is disclosed. The light guide comprising a light guide body comprising a reference object; a topography illumination source illuminating the light guide body and the reference object wherein the illuminated light guide body directs light for illumination of said eye; a directing optical system housed in a proximal end of the light guide body directing light from the light guide body across said comeal profile; and a reflecting optical system housed in the proximal end of the light guide body reflecting light from the directing optical system that has traversed the corneal profile through the light guide body. Also disclosed is an ophthalmological topographer comprising the light guide. Further disclosed is an ophthalmological topographer comprising a scleral projection system. Methods of determining topography are also disclosed.