Optical Aberrations and Wavefront

Optical Aberrations and Wavefront

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The deviation of light to create normal retinal image in the optical system is hbl5266ca called aberration.Aberrations are divided two subgroup: low-order aberrations (defocus: spherical and cylindrical refractive errors) and high-order aberrations (coma, spherical, trefoil, tetrafoil, quadrifoil, pentafoil, secondary astigmatism).Aberrations increase with aging.Spherical aberrations are compensated by positive corneal and negative lenticular spherical aberrations in youth.Total aberrations are elevated by positive corneal and positive lenticular spherical aberrations in elderly.

In this study, we aimed to analyze click here the basic terms regarding optic aberrations which have gained significance recently.(Turk J Ophthalmol 2014; 44: 306-11).