Patent ID: 8425495

Claim:
An ophthalmic laser treatment device for direct treatment of an eye's fundus, for a variety of conditions comprising: a high power laser diode radiation source emitting radiation having a wavelength of 668 nm+/−2.0%, providing about 1 W per single laser diode; a slit lamp adaptor including an attenuation component for outputting a laser beam having a spot size at a treatment site in said eye's fundus of 100 μm or less, to direct and control said radiation to a treatment area in an eye, wherein said spot size is variably controllable without changing power density at a treatment site within said eye's fundus; and an optical fiber coupled to said high power laser diode radiation source and delivering radiation from said high power laser diode radiation source to said slit lamp adaptor, wherein said optical fiber is an oligimode fiber having a core diameter not greater than 50 μm and a Numerical Aperture of about 0.1; wherein said laser diode radiation source emits near single mode radiation and has a light diverging gain region selected from a group consisting of a trapezoidal shaped region and a “bow-tie” shaped region.