What's the difference between ametropia and refractive?
Ametropia
Definition:
(n.) Any abnormal condition of the refracting powers of the eye.
Example Sentences:
(1) Equivalent viewing power (EVP), field of view, and working distance (WD) were calculated for 4 different magnifier equivalent powers, four magnifier-to-eye distances, and for uncorrected spherical ametropias varying from +20.00 to -20.00 D in 0.25 D steps.
(2) The choice of the method depends on the kind and degree of astigmatism and the degree of the spherical ametropia of the operated eye.
(3) The size and the angular tilt of the dark crescent appearing in the subject's pupil are derived as a function of five variables: the ametropia of the eye (Dsph, Dcyl, axis), the eccentricity of the flash, e, and the distance of the camera from the subject's eye, dc.
(4) The results show that the parameters of the prescription (ametropia, cylinder, axis, addition) are not related to either the length of the adaptation process or the other ratings of the Multi-Design progressive lens.
(5) If an animal develops with ametropia, Y cells should be adequately stimulated and as the lower spatial frequencies remain undistorted many Y cells would develop and reasonable form vision with milk amblyopia would result.
(6) In the prediction of ametropia, the SRK method showed a tendency to predict refractions that were lower than the actual values in hyperopic eyes and higher than the actual values in myopic eyes.
(7) Ametropias showed a prevalence of 51.9%; the most common refractive defect was myopia followed by astigmatism and hyperopia.
(8) Beginning with the seventeenth century, when the main scientific foundations were laid, an account is given of the development of various clinical techniques for the assessment of visual acuity and ametropia.
(9) The corrected visual acuity correlates with the residual ametropia.
(10) The eyes of neonates grow from ametropia (refractive error) toward emmetropia.
(11) The influence of preoperative ametropia and the mode of correction on BRSM is investigated, using Gullstrand's number 2 schematic eye as a model.
(12) The possibility of detecting strabismus, anisometropias and ametropias in the photographs by noting the localisation of the corneal reflexes and examining the appearance and lightness of the fundus reflexes and their possible asymmetry were tested in a double blind study.
(13) In subjects with no major ametropia (less than 2.5 diopters of spherical or cylindrical refractive error), a 3.4-mm horizontal diameter optic disc image on a 35-mm transparency can be used as a clinical guide or dividing line for the diagnosis of optic nerve hypoplasia, larger nerves being considered normal and smaller nerves being considered hypoplastic.
(14) The ametropias produced by ophthalmic lenses, and the pharmacology of experimental myopia, are reviewed.
(15) This paper describes two complimentary, noninvasive, circumferential wedge keratectomy techniques for the correction of spherical ametropia.
(16) The program can, alternatively, predict the degree of ametropia given the power of an IOL.
(17) A statistical analysis of postoperative results confirms that the R. D. Binkhorst formula gives the author an over-powered IOL for short eyes when calculated for emmetropia but not when calculated for planned ametropia.
(18) It covers a range of techniques devised to correct or reduce all types of ametropia.
(19) The results of examinations of pilots with mild emmetropia and ametropia demonstrate that qualitative parameters of gaze fixation are important adequate assessment of visual abilities.
(20) Considerable variability existed in lens rotation in the various ametropias during the course of several assessments; SCO provides the best evidence of the fit of toric soft lenses.
Refractive
Definition:
(a.) Serving or having power to refract, or turn from a direct course; pertaining to refraction; as, refractive surfaces; refractive powers.
Example Sentences:
(1) In the group of high myopia (over 20 D), the mean correction was 13.4 D. In the group with refraction between 0 and 6 D, 88% of the eyes treated had attained a correction between -1 and +1 D 3 months postoperatively.
(2) The molar refractivity has been shown to be a superior parameter for the description of the activity of sulphonamides than the sum of electronegativities of atoms making up a heterocyclic substituent in the sulphonamide molecule and molecular weight of the substituent.
(3) A new approach is presented to the refractive procedure by adding observation, both surreptitious and direct, as an adjunct, an aid and a supplement to differential diagnosis in a refractive examination and in visual analysis.
(4) Dioptric aniseikonia was calculated between 1 month and 24 months after surgery (with Gruber's and Huber's computer program) on the basis of most recently obtained values (bulb axis length, depth of the anterior chamber, lens thickness, necessary refraction), and compared with subjective measurements taken with the phase difference haploscope.
(5) These versions offer different advantages and are selected according to the particular field of application and the refraction of the surgeon.
(6) The refraction of his mild hyperopic eyes (+0,5 dpt) changed to -5,5 dpt and the intraocular pressure increased to 40 mm Hg in the right and 42 mm Hg in the left eye.
(7) These observations suggest that refractive anomalies such as anisometropia that limit high frequency spatial resolution and binocular integration can present a major obstacle to the postnatal development of binocular vision.
(8) A retrospective study was performed to evaluate the effect of recipient-donor trephine disparity on refractive error and corneal curvature post-suture removal in keratoconus.
(9) Scientists and clinicians concerned with underwater vision have not considered the relationship between chromatic aberration, water color, and the refractive state of the eye.
(10) As the refractive status changes a curve is traced out on the graph.
(11) The change in refractive astigmatism was as high as 1.50DC (diopter cylinder).
(12) There is a problem in this approach if the angle between the direction of tracked beam and the direction of tracking translation is not zero due to refraction or other effects.
(13) We find good agreement between the model calculations and the experimental results indicating that edge birefringence can be attributed to the change in polarization of light that is refracted and reflected by dielectric interfaces.
(14) The corneal sensibility was examined with the aesthesiometer of Draeger in 41 patients after refractive corneal surgery, 31 patients after radial keratotomy, 5 after epikeratophakia, 5 after excimer laser ablation.
(15) Extraordinarily wide angles were observed in all cases and myopia was a common refractive error.
(16) There was no connection between the cholesterol level, refraction or visual acuity.
(17) The refractive changes in 84 children (155 eyes) following horizontal strabismus surgery and in 97 children (181 eyes) without surgical intervention were studied.
(18) Refractive error and the ocular refractive components have heritabilities intermediate between zero and one, as complied from several studies, indicating familial resemblance, but also non-genetic variation.
(19) Approximately 75% of repeat autorefractor measurements were within 0.50 D of the initial readings, and about 75% of measurements were within 1.00 D of the manual refractions.
(20) The refractive index profile in the equatorial plane of bovine lenses from over a wide age range is presented.