منابع مشابه
Refractive surgery, optical aberrations, and visual performance.
Visual optics is taking on new clinical significance. Given that current refractive procedures can and do induce large amounts of higher order ocular aberration that often affects the patient's daily visual function and quality of life, we can no longer relegate the considerations of ocular aberrations to academic discussions. Instead, we need to move toward minimizing (not increasing) the eye'...
متن کاملThe influence of optical aberrations in refractive surgery.
Optical aberrations lead to defects in image-forming, the image obtained being imperfect and thereby decreasing the quality of vision. When an optic system is not perfect, as happens with the eye, the rays of light that pass through the system produce optical aberrations. The purpose of this review is to describe optical aberrations and their impact on vision and how refractive surgery outcomes...
متن کاملcorrelation between refractive, corneal and lenticular astigmatisms and higher order aberrations in refractive surgery candidates
purpose: to evaluate the correlation between refractive, corneal and lenticular astigmatism and higher order aberrations (hoa) in refractive surgery candidates methods: this cross-sectional descriptive-analytical study consisted of 400 eyes (200 patients) who were referred between 2011 to 2013 to farabi eye hospital for refractive surgery. refraction, topography and aberrometry were performed t...
متن کاملEmmetropization and optical aberrations in a myopic corneal refractive surgery chick model
We studied the potential of myopic corneal refractive laser surgery to induce myopia (axial elongation) and potential interactions between aberrations (generally resulting from the procedure) and myopia development in chicks (Gallus domesticus). Ten white Leghorn chicks were monolaterally treated one day post-hatching with photorefractive keratectomy (PRK), with a nominal dioptric change of -9....
متن کاملMeasuring refractive- surgery-induced change of corneal aberrations
surgery-induced change of corneal aberrations Computerized videokeratography — which measures the shape of the cornea, typically by analysis of the distortion of concentric rings projected on it—is routinely used in clinics to evaluate surgical results (i.e., centration and location of the treatment zone and characteristic patterns of what is known in clinical terms as irregular corneal astigma...
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ژورنال
عنوان ژورنال: Optics and Photonics News
سال: 2001
ISSN: 1047-6938,1541-3721
DOI: 10.1364/opn.12.1.000022