System and process for retina phototherapy
AssigneeOjai Retinal Technology, LLC
InventorsJeffrey K. Luttrull, Benjamin W. L. Margolis
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Abstract
A system for treating retinal diseases includes passing a laser light beam through an optical lens or mask to optically shape the light beam. The light beam is applied to at least a portion of the retina. Due to the selected parameters of the laser light beam pulse length, power and duty cycle, the laser light beam can be applied to substantially the entire retina, including the fovea, without damaging retinal or foveal tissue, while still attaining the benefits of retinal photocoagulation.
Claims16
A system for treating a retinal disease or disorder, comprising:
- a laser producing a micropulsed light beam having parameters, including an average power intensity of between 100-590 watts per square centimeter of exposed retina tissue, a micropulse train duration of between 100 to 500 milliseconds, and a duty cycle of less than 10%, that provide retinal therapy while not destroying retinal and/or foveal tissue;
- optics, comprising an optical mask, for optically shaping the light beam from the laser into at least sixteen spaced apart laser light beams forming a simultaneously applied geometric pattern of spots on the retina, each having a size between 100 and 500 micrometers;
- and
- an optical scanning mechanism for controllably directing the light beams onto at least a portion of a retina and a fovea of an eve without damaging retinal or foveal tissue.
A system for treating a retinal disease or disorder, comprising:
- a laser producing a micropulsed light beam having parameters, including a wavelength greater than 532 nm, an average power intensity of between 100-590 watts per square centimeter of exposed retina tissue, a micropulse train duration of between 100 to 500 milliseconds, and a duty cycle of less than 10%, so as to create harmless subthreshold photocoagulation when the laser light beam is applied to retinal and/or fovea tissue;
- optics, comprising an optical mask, for optically diffracting and shaping the light beam from the laser into a simultaneous geometric object or pattern of at least sixteen spaced apart laser light spots;
- and
- an optical scanning mechanism for controllably directing the light beam object or pattern onto at least a portion of a retina and a fovea without damaging retinal or foveal tissue.
Dependencies are inferred from the claim text.