System and method for determining dosimetry in ophthalmic photomedicine

摘要

A system and method for treating ophthalmic target tissue, including a light source for generating a beam of light, a beam delivery system that includes a scanner for generating patterns, and a controller for controlling the light source and delivery system to create a dosimetry pattern of the light beam on the ophthalmic target tissue. One or more dosage parameters of the light beam vary within the dosimetry pattern, to create varying exposures on the target tissue. A visualization device observes lesions formed on the ophthalmic target tissue by the dosimetry pattern. The controller selects dosage parameters for the treatment beam based upon the lesions resulting from the dosimetry pattern, either automatically or in response to user input, so that a desired clinical effect is achieved by selecting the character of the lesions as determined by the dosimetry pattern lesions.

主权项

1. A method for treating ophthalmic target tissue, comprising:
generating a beam of light using a light source; delivering the beam of light to ophthalmic target tissue using a beam delivery unit having a scanner unit for deflecting the beam of light; creating a dosimetry pattern of the beam of light on the ophthalmic target tissue for which at least one dosage parameter of the beam of light varies within the dosimetry pattern; observing lesions formed on the ophthalmic target tissue by the dosimetry pattern; entering information about the observed lesions using a user interface that is connected to a controller that controls at least one of the light source and the beam delivery unit; selecting at least one dosage parameter for the beam of light in response to the entered information; and controlling at least one of the light source and the beam delivery unit using the controller to then deliver the beam of light having the selected at least one dosage parameter to the ophthalmic target tissue.