IOL-Friendly Photodisruption Ultra Qs Ultra Gaussian spot profile and fast rise time enable you to perform capsulotomies and iridotomies at lower, more efficient power levels and with a reduced risk of side effects such as lens pitting, retinal thickening, increased IOP or collateral damage to surrounding structures. With Ultra Q™ you can achieve optical breakdown (in air) of approximately 1.8mJ, in optimal conditions. This compares to other YAG lasers, which typically achieve optical breakdown (in air) of 3 to 4mJ in optimal conditions. Capsulotomy for Presbyopic IOLs A precise capsulotomy is essential for intraocular lenses that correct presbyopia through implantation in the posterior chambers capsular bag. Good IOL centration, in terms of the pupil, optimizes lens performance. In contrast, decentration can cause halos and poor vision. The goal is a perfectly centered, precise capsulotomy that will not affect the tension of the bag and the position of the IOL in the visual axis. The precision and ultra-low energy optical breakdown provided by Ultra Q™ Reflex creates a capsulotomy opening that is precisely controlled, without causing damage to the lens even if the lack of a ridge makes the capsule adhere to the optic.