cell

(redirected from simple astigmatism)
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Related to simple astigmatism: hyperopic astigmatism

cell

an independent team of operatives who work together in a CELLULAR MANUFACTURING production environment.
Collins Dictionary of Business, 3rd ed. © 2002, 2005 C Pass, B Lowes, A Pendleton, L Chadwick, D O’Reilly and M Afferson
References in periodicals archive ?
Based on the focal point with reference to the retina, astigmatism is divided into simple astigmatism (simple myopic or simple hypermetropic), compound astigmatism (compound myopic or compound hypermetropic) and mixed astigmatism.
Unlike low order aberrations (myopia, hypermetropia, simple astigmatism) they cannot be corrected with spectacles or contact lenses.6 They are commonly described in terms of Zernike polynomials and measured by aberrometer which measures the root mean square (RMS) value in micrometers.7,8 Zernike polynomials are divided into several orders, low order aberrations (first and second order), and high order aberrartions (third order onwards).7,8 Studies have shown that wave front optimized LASIK, though corrects the refractive error but increases the HOAs.9,10

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