refractive power

refractive power

The degree to which a transparent body deflects a ray of light from a straight path.
See: diopter
Medical Dictionary, © 2009 Farlex and Partners
Mentioned in ?
References in periodicals archive ?
Astigmatism is state of refraction where in the refractive power varies in the different meridian such that the rays of light entering the eye cannot converge to a point focus but form focal lines.
EFFECT OF USING VERION IMAGE GUIDED SYSTEM ON SURGICALLY INDUCED ASTIGMATISM (SIA) IN PATIENTS UNDERGOING CATARACT SURGERY
They are the most common modality for the measurement of the actual refractive error of the eye and refractive power. Moreover, it also measures pupillary distance and pupil size.
Auto Keratometer Market: Global Industry Trend Analysis 2013 to 2017 and Forecast 2018 - 2026
Tell your patients to blink throughout the examination to refresh the tear film, as most of the refractive power of the eye is at the air / tear film junction.
Three steps to success
"If we carefully tailor these changes, we can adjust the corneal curvature and thus change the refractive power of the eye," says Vukelic.
Engineers Invent Noninvasive Technique to Correct Vision
In 15 unilateral cases, long-term (4 to 15 years) changes in refraction, axial length, and refractive power of the cornea were evaluated and compared with nonoperated eyes, and no significant differences in the axial length or refractive power of the cornea between the operated and nonoperated eyes were detected, although there was significant myopic change in the operated eyes.
Long-term Results in Pediatric Developmental Cataract Surgery with Primary Intraocular Lens Implantation
Objective exam to "measure the refractive power of the eye by interpreting the light reflected from its retina when illuminated with the retinoscope" (15).
Caracterizacion de los defectos refractivos en una poblacion de ninos de los 2 a los 14 anos en Bogota, Colombia
Holladay, "Refractive power calculations for intraocular lenses in the phakic eye," American Journal of Ophthalmology, vol.
Early Results with a New Posterior Chamber Phakic Intraocular Lens in Patients with High Myopia
The key understanding here was the characterization of the natural variation of the human pupil size over age and refractive power with changes in everyday lighting.
A Breakthrough in Vision Care: Johnson & Johnson Vision Care
Age of commencement, refractive power at the beginning, and refractive power at the present were compared in between the two groups (Table 1).
Effect of genetic predisposition on the age of onset and progression of myopia among medical students
Surgical intervention resulted in an increase in the mean refractive power of cornea after one month of surgery, which indicates a steepening of the flattened cornea.
Effect of pterygium excision on pterygium induced refractive changes
In both conditions, the refractive power of the refractive media is the same in all meridians.
REFRACTIVE ERRORS IN ADULTS STUDIED AT A TEACHING HOSPITAL

Medical browser ?
Full browser ?