anisometropia उदाहरण वाक्य
उदाहरण वाक्य
- This condition has been associated with amblyopia ( in 54 % of cases ), anisometropia ( 26 % ), and strabismus ( 56 % ).
- Several studies have found that anisometropia occurs more frequently and tends to be more severe for persons with high ametropia, and that this is particularly true for myopes.
- Aniseikonia can occur naturally or be induced by the correction of a refractive error, usually anisometropia ( having significantly different refractive errors between each eye ) or antimetropia ( being glasses and contacts.
- In certain types of anisometropia, the visual cortex of the brain will not use both eyes together ( binocular vision ), and will instead suppress the central vision of one of the eyes.
- More specifically, for patients with esotropia who undergo strabismus surgery, anisometropia may be one of the risk factors for developing consecutive exotropia and poor binocular function may be a risk factor for anisometropia to develop or increase.
- More specifically, for patients with esotropia who undergo strabismus surgery, anisometropia may be one of the risk factors for developing consecutive exotropia and poor binocular function may be a risk factor for anisometropia to develop or increase.
- In case of strong anisometropia, contact lenses may be preferable to spectacles because they avoid the problem of visual disparities due to size differences ( aniseikonia ) which is otherwise caused by spectacles in which the refractive power is very different for the two eyes.
- Anisometropia follows a U-shape distribution according to age : it is frequent in infants aged only a few weeks, is more rare in young children, comparatively more frequent in teen-agers and young adults, and more prevalent after presbyopia sets in, progressively increasing into old age.
- A definition that incorporates all of these defines amblyopia as a unilateral condition in which vision in worse than 20 / 20 in the absence of any obvious structural or pathologic anomalies, but with one or more of the following conditions occurring before the age of six : amblyogenic anisometropia, constant unilateral esotropia or exotropia, amblyogenic bilateral isometropia, amblyogenic unilateral or bilateral astigmatism, image degradation.
- Any visual deprivation, that is, anything interfering with such input over a prolonged period of time, such as a cataract, severe eye turn or strabismus, anisometropia ( unequal refractive error between the two eyes ), or covering or patching the eye during medical treatment, will usually result in a severe and permanent decrease in visual acuity and pattern recognition in the affected eye if not treated early in life, a condition known as amblyopia.