Optical Aberrations and Wavefront
The deviation of light to create normal retinal image in the optical system is 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 the basic terms regarding optic aberrations which have gained significance
recently. (Turk J Ophthalmol 2014; 44: 306-11)
Document Type: Research Article
Affiliations: 1: İnönü Üniversitesi Tıp Fakültesi, Göz Hastalıkları Anabilim Dalı, Malatya, Türkiye 2: Beykoz Devlet Hastanesi, Göz Hastalıkları Kliniği, İstanbul, Türkiye 3: Özel Alfa Göz Tıp Merkezi, İzmir, Türkiye
Publication date: 01 January 2014
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