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 corneal 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.

Abstract: An ophthalmological topographer is disclosed. The ophthalmological topographer includes a corneal topographer and a scleral measurement device including one or more scleral projection systems. Methods of determining topography are also disclosed.

Abstract: A dark adapted perimetry method includes the steps of at least partially photobleaching an eye, selectively illuminating a plurality of stimulus target light sources at a predetermined luminance, and recording a response data including triggering an input device in response to the selective illumination. The plurality of stimulus target light sources define a stimulus target array positioned within a concave array guide. Each stimulus target light source is illuminated by a respective LED complex light source.

Abstract: An ophthalmological topographer is disclosed. The ophthalmological topographer includes a corneal topographer and a scleral measurement device including one or more scleral projection systems. Methods of determining topography are also disclosed.

Abstract: A dark adapted perimetry method includes the steps of at least partially photobleaching an eye, selectively illuminating a plurality of stimulus target light sources at a predetermined luminance, and recording a response data including triggering an input device in response to the selective illumination. The plurality of stimulus target light sources define a stimulus target array positioned within a concave array guide. Each stimulus target light source is illuminated by a respective LED complex light source.

Abstract: A dark adapted perimetry device comprising a photobleaching device, a concave, array guide, the guide comprising a stimulus target array comprising a plurality of stimulus target light sources positioned within the guide and a control unit to selectively illuminate light sources comprised in the plurality of stimulus target light sources at a predetermined luminance is disclosed. The stimulus target light sources may be illuminated by a LED complex source comprising two or more LEDs. Also disclosed is a method using the perimetry device. A bleaching device comprising an eye piece for positioning the eye, a locator for moving the bleaching device into and out of the optical path, an imaging system for tracking the gaze direction or a fixation target, an illumination source and a bleach control device to control the brightness and pulse form of the illumination source is also disclosed along with a method of photobleaching.

Abstract: A dark adapted perimetry device comprising a photobleaching device, a concave, array guide, the guide comprising a stimulus target array comprising a plurality of stimulus target light sources positioned within the guide and a control unit to selectively illuminate light sources comprised in the plurality of stimulus target light sources at a predetermined luminance is disclosed. The stimulus target light sources may be illuminated by a LED complex source comprising two or more LEDs. Also disclosed is a method using the perimetry device. A bleaching device comprising an eye piece for positioning the eye, a locator for moving the bleaching device into and out of the optical path, an imaging system for tracking the gaze direction or a fixation target, an illumination source and a bleach control device to control the brightness and pulse form of the illumination source is also disclosed along with a method of photobleaching.