This article is more than 5 years old. Information may no longer be current.

Torsion error correction may improve astigmatic outcomes after LASIK

J Refract Surg. 2009;25(11):985-990.

Add topic to email alerts

Receive an email when new articles are posted on

Please provide your email address to receive an email when new articles are posted on .

Subscribe

Added to email alerts

You've successfully added to your alerts. You will receive an email when new content is published.

Click Here to Manage Email Alerts

You've successfully added to your alerts. You will receive an email when new content is published.

Click Here to Manage Email Alerts

Back to Healio

We were unable to process your request. Please try again later. If you continue to have this issue please contact customerservice@slackinc.com.

Back to Healio

Use of a torsion error correction system during LASIK surgery may reduce residual astigmatism, according to a contralateral eye study.

In the study, 48 eyes of 24 patients underwent LASIK surgery using the NIDEK Advanced Vision Excimer laser platform (NAVEX), with half of the eyes receiving the treatment with active cyclotorsion error correction. Preoperatively, manifest refraction spherical equivalent was –3.59 D (range: –1.25 D to –6.75 D) for treated eyes compared with –3.82 (range: –1.38 to –8.63) for nontreated eyes.

At 3 months, visual acuity was equivalent between the two groups, but treated eyes had significantly lower cylinder (0.28 D) vs. nontreated eyes (0.49 D).

"We found that using the NAVEX platform with active torsion error correction statistically significantly increases the predictability of astigmatism correction and higher order aberration correction during laser vision correction," the study authors wrote.