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A disorder characterized by double vision.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a disturbance of vision consisting in the doubling of seen objects. Most often diplopia occurs when there is weakening (paresis) or paralysis of one of the oculomotor muscles, when coordinated, harmonious movements of the eyeballs are disrupted, as a result of which the image of the observed object falls on noncorresponding (located at various distances from the macula lutea) points of the retinas of both eyes. In diplopia binocular vision is always disturbed. Diplopia disappears when one eye is closed. Rarely (for example, after trauma, when there is detachment of the root of the iris and two so-called pupils are formed, and when there is subluxation of the crystalline lens), monocular diplopia—when the same object yields two images in one eye—may occur. When the other eye is closed the doubling does not cease. Investigation of diplopia is valuable in identifying paralyses of the oculomotor muscles, which occur frequently even with some constitutional diseases (encephalitides and cerebral hemorrhages, for example).


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The patients might present with symptoms such as pain in the eyes, strabismus, diplopia, proptosis, conjunctival hyperemia, and swelling-pain in the eyelids.
This was further substantiated when we started her treatment with systemic prednisolone, to which she responded drastically over the next 3-5 days and there was significant relief in diplopia and in vision in up gaze and down gaze, but minimal improvement in adduction.
The analysis of this Phase 2 exploratory endpoint shows that 69.2% (18/26 patients) of those with diplopia improvements of at least one grade at week 24 maintained these improvements at week 72 (48 weeks following treatment period).
The medical records of three patients who underwent the HI procedure due to torsional diplopia were retrospectively evaluated.
Ocular sequela of midface fracture ranged from subconjuctival hemorrhage, diplopia, decreased visual acuity, enophthalmus and hyphema to blindness.
Surgical exenteration was the treatment option for the case because of debilitating diplopia and visual acuity showing an unlikely improvement with any other treatment option.
The researchers found that there was a correlation for reduced HRQOL with worse diplopia on six subscales.
Eight (55.6%) out of 18 patients had diplopia. The exophthalmometry measurements ranged from 14 to 26 mm (mean [+ or -] SD, 20.1 [+ or -] 3.6 mm).
No enophthalmos, diplopia, and eye motility restriction were clinically observed (Figure 2).
We present a case of neuroborreliosis manifesting with diplopia.