refractive


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refractive

 [re-frak´tiv]
pertaining to or subserving a process of refraction; having the power to refract.

re·frac·tive

(rē-frak'tiv),
1. Pertaining to refraction.
2. Having the power to refract.
Synonym(s): refringent

re·frac·tive

(rē-frak'tiv)
1. Pertaining to refraction.
2. Having the power to refract.
Synonym(s): refringent.

refractive

index See index of refraction.

refractive

capacity to refract light.

refractive error
a difference between the focal length of the cornea and lens, and the length of the eye, resulting in myopia or hyperopia.
refractive media
of the eye include the vitreous humor and the lens.
References in periodicals archive ?
The variation in refractive index across a pane of sheet glass is reported to be between 2.
In the August Nature Medicine, Smith reported that monkeys' eyes, too, employ a feedback mechanism to compensate for refractive lenses.
Note that the complete name for this ophthalmic laser is "WaveLight ALLEGRETTO WAVE[R] Eye-Q Excimer Laser System for laser assisted in situ keratomileusis (LASIK) treatments of myopic refractive errors up to -12.
Figure 2 shows that of those who were having refractive error, only 20.
KEY WORDS: Refractive errors; Adults; Myopia; Hyperopia; Astigmatism; Anisometropia.
Identified cases of refractive errors were recommended spectacles and some other cases which needed further evaluation were referred to Rajiv Gandhi institute of Health sciences, Srikakulam.
Table 1 presents the refractive indices (at a wavelength of 589 nm) of PSL beads and several other types of beads.
The majority of patients having laser refractive surgery will be aged 20--45 years, all of whom will go on to develop cataract anyway should they be fortunate enough to live long enough.
Visual impairment in age group 18-23 yrs is almost entirely because of correctable refractive error.
The refractive index of a medium is a measure of how much the speed of light (or other waves such as sound waves) is reduced inside the medium.
Currently there are different methods to generate a refractive index gradient in glass.