Intermittent Exotropia Caused by Common Near Vision Disorder: Exotropia — a common type of strabismus — is the outward deviation of an eye (eye turns. Exotropia is a form of strabismus (eye misalignment) in which one or both of the eyes Children with intermittent exotropia commonly close or squint one eye at. Exotropia, or divergent squint, refers to an eye that turns or diverges outwards. Exotropia may occur from time to time (intermittent exotropia) or may be constant.
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This causes loss of depth perception and binocular vision.
Since the brain and eyes work properly some of the time, time is on your side. In cases of permanent visual loss, surgery to straighten the eye is often an option. According to him Duane’s theory did not take into account the abnormal position of rest associated with exodeviations.
When the eye turns outward only some of the time, intermtitent is called intermittent exotropia. One study has found that children with exotropia are three times more likely to develop a psychiatric disorder in comparison intermittrnt the general population.
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Bielschowsky questioned Duane’s claim that the majority of exodeviations are based on hyperactive tonic divergence. Ophthalmology and Visual Sciences. The success kntermittent of intermittent exotropia is dependent on the length of follow-up.
Intermittent Divergent Squint in Prematurity and Its Neurophysiological Aspects
What is Lazy Eye? Of course, if the visual problem is treatable, it should be addressed as soon as possible. Intermittent exotropia is a fairly squin condition. Conflicts of interest There are no conflicts of interest. Combining the patch test and far distance measurement can greatly reduce under-corrections and has improved the overall result.
This is in agreement with von Noorden’s earlier clinical findings using a near-gradient clinical procedure. Refractive error is associated in a severity-dependent manner to the prevalence of esotropia and exotropia.
Evaluation and management of intermittent exotropia. If the patient has a micro-esotropia by simultaneous prism and cover test, but exodeviation by alternate cover test, the scale applies to the exodeviation.
Binoc Vis Eye Muscle Surg ;8: The various symptoms seen in intermittent exotropia are as follows:. In some relatives, the strabismus may be obvious, while others may have a milder form. There is a common form of exotropia known as ” convergence insufficiency ” that responds well to orthoptic vision therapy squimt exercises.
A minority of patients with intermittent exotropia may have the monofixation syndrome and do not develop normal bifoveal fixation with high grade of stereopsis. Sensory Adaptation As a rule during the phoric phase of intermittent exotropia, the eyes are perfectly aligned and the patient will have bifoveal fusion with divvergent stereoacuity ranging between second arc. Ocular movements were full on testing.
Binocular vision for near, suppression scotoma develops for distance. This page was last edited on 4 Novemberat Intefmittent unusually large overcorrection with gross limitation of ocular motility noted on the first postoperative day is possibly due to lost or slipped lateral rectus muscle.
Exotropia (divergent squint)
Classification Systems Intermittent exotropia has been divided into four groups according to the classification system proposed by Burian In older children and adults who develop intermittent exotropia after age 10 years, diplopia is usually present with little or no suppression.
Mechanisms underlying development of visual maps and receptive fields. Why does someone with intermittent exotropia close one eye frequently? The distance angle to target in surgery for intermittent exotropia. Intermittent Exotropia, basic and divergence excess type. The assessment of control of intermittent exotropia is essential to obtain a baseline evaluation as well as to monitor deterioration and progression of intermittent exotropia.
Consecutive exotropia is an exotropia that arises after an initial esotropia. Some have proposed the use of alternate day, alternate eye patching to help control exotropia.