Recent advances in measurement of monochromatic aberrations of human eyes

Abstract

The field of aberrations of the human eye is moving rapidly, being driven by the desire to monitor and optimise vision following refractive surgery. It is important for ophthalmologists and optometrists to have an understanding of the magnitude of various aberrations and how these are likely to be affected by refractive surgery and other corrections. In this paper, I consider methods used to measure aberrations, the magnitude of aberrations in general populations and how these are affected by various factors (for example, age, refractive error, accommodation and refractive surgery) and how aberrations and their correction affect spatial visual performance.

Key words:

• aberrations
• accommodation
• ageing
• cornea
• lens
• refractive correction
• refractive surgery
• wavefront
• Zernike polynomials