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Esotropia is a form of strabismus in which one or both eyes turn inward. The condition can be constantly present, or occur intermittently, and can give the affected individual a "cross-eyed" appearance. [1] It is the opposite of exotropia and usually involves more severe axis deviation than esophoria. Esotropia is sometimes erroneously called ...
Refractive correction can be worn under the goggles ; Good starting point when investigating the nature of diplopia i.e. to find manifest, intermittent, crossed or uncrossed diplopia; It is less dissociative than a cover test; Can be used to determine if a patient will demonstrate binocular single vision with corrective prism or head posture
Incomitant strabismus cannot be fully corrected by prism glasses, because the eyes would require different degrees of prismatic correction dependent on the direction of the gaze. Incomitant strabismus of the eso- or exo-type are classified as "alphabet patterns": they are denoted as A- or V- or more rarely λ -, Y- or X-pattern depending on the ...
Patulous Eustachian tube can occur as a result of liquid residue in the Eustachian tube, after suffering a middle ear infection (otitis media). Potential causes list. Longitudinal concave defect in the mucosal valve ; Sudden weight loss; Radiation therapy; High levels of estrogen; Nasal decongestants; Stress; Neurological disorders
The nearly five-minute video consists entirely of close ups of the infestation and footage of the maggots being pulled from the ear. The video, posted earlier this year to YouTube, has more...
Otoplasty. Otoplasty ( Greek: οὖς, oûs, "ear" + πλάσσειν, plássein, "to shape") is a procedure for correcting the deformities and defects of the auricle ( external ear ), whether these defects are congenital conditions (e.g. microtia, anotia, etc.) or caused by trauma. [1] Otoplastic surgeons may reshape, move, or augment the ...
The Maddox rod test can be used to subjectively detect and measure a latent, manifest, horizontal or vertical strabismus for near and distance. The test is based on the principle of diplopic projection. [1] Dissociation of the deviation is brought about by presenting a red line image to one eye and a white light to the other, while prisms are ...
Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
Esophoria: ET Esotropia: Supp. Suppression V Vision (unaided) VA Visual acuity VA Dcc - VA Dsc Visual acuity with Distant chart with correctors Visual acuity with eye chart at Distant 20 feet (6 m) and with (cc: Latin cum correctore) correctors (spectacles); Dsc is without (sc: Latin sine correctore) correctors. See Visual_acuity#Legal_definitions
Sensory illusions in aviation. Blind flying. The pilot wears goggles blocking the colors transparent through the orange plastic sheet in front of him. The instructor wearing no goggles has an outside view tinted orange. Human senses are not naturally geared for the inflight environment.