الفهرس 
ASTIIGMATIISMOnly 14 pages are availabe for public view
 |  | from | 128 |  |  |
| | | from | 128 | | |
Abstract
Astigmatism (> 0.5 diopters) is a commonly encountered refractive error, accounting for about 13 % of the refractive errors of the human eye. It is estimated that 15% to 29% of patients presenting for cataract surgery have more than 1.50 D of corneal astigmatism.
we conducted this study to evaluate the safety and efficacy of single intrastromal astigmatic keratotomy during FLACS. Both control and ISAK groups showed a statistically significant improvement of UCVA and BCVA postoperatively. The ISAK showed a statistically significant decrease in refractive and topographic astigmatism postoperatively by correction index of 81%. The magnitude of error and correction index of ISAK suggested undercorrection of this technique. Both groups did not show a significant change in corneal aberrations postoperatively.
We recommend using femtosecond laser in doing astigmatic keratotomy (AK). Intrastromal AK is less than penetrating AK in reduction of corneal astigmatism but with high safety profile (no wound gap, inflammation) and high patient satisfaction. We believe the astigmatic effect can be increased as we refine the nomogram and use paired incisions instead of one.
Keywords
FLACS Femtosecond Laser Assisted Cataract Surgery
FSAK Femtosecond Laser-Assisted Astigmatic Keratotomy
ISAK Intrastromal Arcuate Keratotomy
AK Astigmatic Keratotomy
SIA Surgically Induced Astigmatism