Prospective evaluation of surgically induced astigmatism and astigmatic
keratotomy effects of various self-sealing small incisions.
Litania cannot rival Astigmatic
for adventurousness, but it matches it for elegance of execution.
Radial Keratotomy (RK), Astigmatic
Keratotomy (AK), and Automated Lamellar Keratoplasty (ALK), are commonly performed procedures selected by people who want to be less dependent on glasses or contact lenses for the correction or improvement of myopia (nearsightedness), hyperopia (farsightedness), and astigmatism.
For some six centuries, people who were nearsighted, farsighted, or astigmatic
had worn spectacles, or eyeglasses, to correct their vision (see 1249 and 1825).
Small amounts of rotational misalignment can have a significant impact on the efficacy of the magnitude of astigmatic
correction, such that a 1[degrees] misalignment will result in a 3% reduction in the magnitude of astigmatic
In sections on setting the stage, surgical techniques and implants, and post-operative considerations and enhancements, they discuss such facets as preparing the ocular surface for cataract and refractive surgery, educating patients, femtosecond laser-assisted cataract surgery, the toric intraocular lens: successful strategies, excimer laser enhancements after intraocular lens surgery, and enhancements with micro-radial keratotomy or astigmatic
However, the findings do not support the theory that the lens plays any active role in compensating for astigmatic
defocus of the eye.
The course of postoperative astigmatic
changes was determined by keratometry performed with a standard calibrated keratometer (Bausch and Lomb).
It is known that small sized incisions allows rapid visual rehabilitation, produce less astigmatic
effect, reduce postoperative wound leak, and decrease the risk of endophthalmitis.
The 23 chapters cover benefits, keratoplasty techniques, uses in cataract surgery, corneal crosslinking treatment, corneal inlays for presbyopia, the surgical treatment of keratoconus and LASIK ectasia, LASIK flap creation, advanced isovision, assisted refractive cataract surgery and presbyopia reversal, lamellar corneal resection, macular degeneration, analysis of the vitreous of diabetic patients, flap complications, astigmatic
incisions, and other topics, including specific steps for techniques.
Their study verified that pterygium induces a change in the toricaspheric shape of the cornea, thus leading to an ocular astigmatic