December Archives: The light adjustable IOL (LAL) was evaluated over an 18 month period, and was found to successfully and precisely correct up yo 2.25D in sphere and 2.75D in cylinder, stable for at least 18 months.  Briefly, the IOL is subject to ultraviolet light in a precise manner to change the shape of the IOL, by selectively stimulating sensitive portions of the lens which adjust their shape in response to the light. I don’t know about you, but I can’t wait to try this.