Centration in refractive surgery

Centration axis in refractive surgery

The human eye is an asymmetric optical system and the real cornea is not a rotationally symmetrical volume. Each optical element in the eye has its own optical and neural axes. Defining the optimum center for laser ablation is difficult with many available approaches. We explain the various centration approaches (based on these reference axes) in refractive surgery and review their clinical out...

[Refractive surgery].

FEBRUARY 2004 I CATARACT & REFRACTIVE SURGERY TODAY I 27 T he FEMTEC femtosecond (ultrashort pulse) ophthalmic laser (20/10 PERFECT VISION Optische Geräte GmbH, Heidelberg, Germany) is a photodisruptive laser. Although performed since the early 1980s, ophthalmic photodisruption has previously been limited to intraocular procedures because of the relatively large amount of energy needed to initi...

Refractive Errors & Refractive Surgery Preferred Practice Pattern®.

Current Technology in Refractive Surgery

Challenging Cases in Refractive Surgery

As refractive surgeons, it is safe to say we have all had our share of challenging cases. For this issue, Cataract & Refractive Surgery Today and I asked several editorial board members and other top surgeons to address a wide variety of interesting refractive complications, including suction break with the Intralase FS Laser (Intralase Corp., Irvine, CA), a lost LASIK flap, and the implantatio...