Cookies

Like most websites The Ophthalmologist uses cookies. In order to deliver a personalized, responsive service and to improve the site, we remember and store information about how you use it. Learn more.
Business & Profession Refractive, Professional Development

How to Reduce Higher-Order Aberrations

At a Glance

  • Wavefront aberrometers quantify higher order aberrations objectively.
  • The problem with being objective is that we do not see with our optical system, we see with our brain.
  • Point Spread Function (PSF) refractors provide subjective corrections that optimize images on the retina.
  • Pre-operative aberrometry with PSF optimizes refractive outcomes following LASIK or PRK surgery.

Wavefront aberrations are optical imperfections of the eye that prevent light from focusing flawlessly on the macula, resulting in a less than perfect image being perceived by an individual. Lower-order aberrations, including myopia, hyperopia and astigmatism, are common and easily corrected with spectacles, contact lenses or refractive surgery. Higher-order aberrations (HOAs), which are of the third order and above, are more complex vision errors that cannot be easily corrected (1). Examples of HOAs are coma, spherical aberration and trefoil. They can lead to symptoms such as difficulty with night vision, glare, halos around bright lights, blurring, starburst patterns, or diplopia (1).

Read the full article now

Log in or register to read this article in full and gain access to The Ophthalmologist’s entire content archive. It’s FREE and always will be!

Login

Or register now - it’s free and always will be!

You will benefit from:

  • Unlimited access to ALL articles
  • News, interviews & opinions from leading industry experts
  • Receive print (and PDF) copies of The Ophthalmologist magazine
Register

Or Login via Social Media

By clicking on any of the above social media links, you are agreeing to our Privacy Notice.

Newsletter

Send me the latest from The Ophthalmologist.

Sign up now

Most Popular

Register to The Ophthalmologist

Register to access our FREE online portfolio, request the magazine in print and manage your preferences.

You will benefit from:

  • Unlimited access to ALL articles
  • News, interviews & opinions from leading industry experts
  • Receive print (and PDF) copies of The Ophthalmologist magazine

Register