A system and method for treating ophthalmic target tissue in which a light source generates a beam of light, a scanner unit deflects the beam of light into a pattern, a beam delivery unit for delivering the pattern to ophthalmic target tissue. The light is either pulsed or moved across the target tissue such that the light pulses having a duration of, or the light dwells on any given point of target tissue for, between 30 μs and 10 ms.
