LASIK induces irregular astigmatism

Article

Unlike LASEK, LASIK significantly increases irregular astigmatism in the 3 and 5 mm central zones.

Unlike LASEK, LASIK significantly increases irregular astigmatism in the 3 and 5 mm central zones, according to Liliana Voinea and co-workers from the Optilaser Medical Center, Bucharest, Romania.

One hundred and three eyes undergoing LASIK (55 eyes) and LASEK (48 eyes) for myopia were evaluated. Corneal topography was performed preoperatively and six months following surgery. The Orbscan II videokeratoscope was used to obtain irregular astigmatism values in the 3 and 5 mm central zone.

Following LASIK, the researchers noted a statistically significant increase in the value of the irregular astigmatism in the 3 mm central zone (p=0.05, t=3.67) and 5 mm central zone (p=0.05, t=2.89). LASEK however, did not induce a statistically significant increase in these two parameters.

A direct correlation was also observed between the dioptric value of the myopia and the value of the irregular astigmatism following LASIK.

The researchers concluded that LASIK significantly increases the irregular astigmatism in the 3mm and 5 mm central zones.

Newsletter

Join ophthalmologists across Europe—sign up for exclusive updates and innovations in surgical techniques and clinical care.

Recent Videos
Christine Curcio, PhD, of the University of Alabama at Birmingham Heersink School of Medicine, shares histology update and revised nomenclature for OCT with Sheryl Stevenson of the Eye Care Network and Ophthalmology Times
SriniVas R. Sadda, MD, FARVO, shares key points from his retina presentation at the International SPECTRALIS Symposium
Robert Sergott, MD, describes fluorescence lifetime imaging ophthalmoscopy (FLIO) and the International SPECTRALIS Symposium – And Beyond (ISS) in Heidelberg, Germany.
Rayaz Malik, MBChB, PhD, a professor of medicine at Weill Cornell Medicine - Qatar, spoke with Ophthalmology Times Europe about his presentation. It's titled "An eye on neurodegenerative diseases: Challenging the dogma" at the International SPECTRALIS Sympsoium. In conversation with Hattie Hayes, Ophthalmology Times Europe
Anat Loewenstein, MD, describes her presentation on remote imaging for age-related macular degeneration and geographic atrophy at the International SPECTRALIS Symposium, in conversation with Hattie Hayes of Ophthalmology Times Europe
Tyson Brunstetter, OD, PhD, a US Navy Aerospace Optometrist at the NASA Johnson Space Center in Houston, Texas, shares key takeaways from his keynote at the International SPECTRALIS Symposium (ISS)
Rayaz Malik, MBChB, PhD, shares his presentation, titled An eye on neurodegenerative diseases: Challenging the dogma, at this year's International SPECTRALIS Symposium
At the Retina World Congress, Siegfried Priglinger, MD, speaks about ensuring the best outcomes for preschool-aged patients
At the 2025 ASCRS meeting, Robert Ang, MD said small aperture IOLs can benefit all patients, especially those with complex corneas or who have undergone previous corneal refractive surgery
Viha Vig, MBChB graduate student at the University of Auckland, New Zealand, discusses her poster presentation on the relationship between mitochondiral disease, Alzheimer disease, and other types of dementia.
© 2025 MJH Life Sciences

All rights reserved.