9 matching records for VISION SOURCE.
A mains electricity (AC-powered) ophthalmic instrument used to test a patient for abnormal red/green colour vision by differentiating the red/green colour vision defects. It typically consists of two different light sources, one that permits the mixing of p...
An endoscope with a rigid inserted portion intended for the visual examination and treatment of the anus and rectum. It is inserted into the body through the anus during anoscopy. The inserted portion is short in length, though longer than a sphincteroscope...
A convex lens with an built-in, electrical light source used for magnifying vision and concentrating the light upon an object or objects being viewed. It can be used for a variety of purposes, e.g., the examination of an object for laboratory work, diagnosi...
An endoscope with a rigid inserted portion intended for the visual examination and treatment of the anus and rectum. It is inserted into the body through the anus during anoscopy. The inserted portion is short in length, though longer than a sphincteroscope...
An endoscope with a rigid inserted portion intended for the visual examination and treatment of the anus and rectum. It is inserted into the body through the anus during anoscopy. The inserted portion is short in length, though longer than a sphincteroscope...
A collection of sterile devices designed to stabilize and aspirate a cyst or other internal anatomical structure under direct endoscopic vision during a surgical procedure, typically enabling aspiration of fluid without leakage into the surrounding anatomy ...
A fibreoptic device mounted on a headband or helmet frame to convey cold light from a connected light source (not included) directly onto the field of vision during a medical or surgical procedure. It typically consists of a magnifying lens, a reflector, an...
A sterile endoscope with a rigid inserted portion intended for the visual examination and treatment of the anus and rectum. It is inserted into the body through the anus during anoscopy. The inserted portion is short in length, though longer than a sphincte...
A battery-powered device with a series of individual flashing light sources [typically consisting of a light-emitting diode (LED)] to treat poor accommodative and vergence facility, convergence insufficiency, and large accommodative lag in non-presbyopic su...