Eye investigation or treatment device, projects light source onto surface behind device operative for non investigated or treated eye of patient to focus on

摘要

The device (4) comprises a head rest for the patient and a mechanism for orienting (preferably focusing) the eye not being investigated or treated. This mechanism comprises a light source and a holder (10) for the light source, which can be pointed in a direction facing away from the patient's vision side and onto a focal point on a visible surface in front of the patient. Independent claims are also included for then following: (1) a light source support with a diode laser, provided with a cover; (2) a light source support with a diode laser, provided with a switch mechanism for turning the laser beam on and off; (3) a light source support with a diode laser, provided with a mechanism for altering laser beam width; (4) an eye investigation or treatment method using this device; (5) an eye focusing device used in the eye investigation or treatment device.