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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The patients understand that their names and initials will not intermihtent published and due efforts will be made to conceal their identity, but anonymity cannot be guaranteed.

Overcorrecting minus lens therapy for treatment of intermittent exotropia. However, he or she may close one eye to compensate for the problem. In children under 4 years of age, part-time alternate patching of each eye helps prevent amblyopia and may facilitate straightening of the eyes.

What about exercises or vision therapy for the eyes? Dacryoadenitis Epiphora Sqquint Xerophthalmia. This abnormal position is determined by anatomic and mechanical factors such as orientation, shape and size of the orbits, size and shape of globes, volume and viscosity of reterobulbar tissue, functioning of the eye muscles as determined by their insertion, length, elasticity anatomical and structural arrangement and condition of fascias and ligaments of the orbits 5.

Please review our privacy policy. Binocular vision refers to the brain’s ability to see objects with both eyes simultaneously.


Classification Systems Intermittent exotropia has been divided into four groups according to the classification system sqkint by Burian From Wikipedia, the free encyclopedia.


Patient who breaks spontaneously without any form of fusion disruption. In addition adults with longstanding intermittent deviations will often tolerate undercorrection, divegent will have symptomatic diplopia when overcorrected. Surgical results in different age groups. Intermittent Exotropia Control Scale is applied to each patient for both distance and near fixation which, when combined, yields an overall control score ranging from 0 to When is surgery for exotropia indicated?

Bilateral lateral rectus recession of 10 mm was done using hang back technique. Levels 2—0 are graded as the worst of three rapidly successive trials. A minority of patients with intermittent exotropia may have the monofixation syndrome and do not develop normal bifoveal fixation with high grade of stereopsis.

Cataract Congenital cataract Childhood cataract Aphakia Ectopia lentis. In a series of patients with intermittent exotropia, the deviation was present at birth in and appeared in 16 at 6 months of divwrgent and in 72 between months of age 9. Muscular dystrophies and other inter,ittent myopathies.

Exotropia — AAPOS

Children who are capable of maintaining binocular vision are also less likely to develop amblyopia. As the eyes focus accommodate they also converge turn in which helps to control the divergent angle. Postoperative diplopia is used to stimulate the development of fusional vergences and stabilize postoperative alignment. Sqiint surgical overcorrection of intermittent exotropia.

Unequal corrected visual acuity as related to anisometropia.

Am J Ophthalmol ; As mentioned before adults who develop intermittent exotropia after age 10 years usually present with diplopia and in these patients orthotropia in the immediate postoperative period is desirable. The various symptoms seen in intermittent exotropia are as follows:.

Contrary to the earlier practice of patching one eye for 24 hrs it is now found that patching the eye for 30 min. Spontaneous impulse activity of rat retinal ganglion cells in prenatal life. Type of Surgery – Several surgical approaches have been used successfully. What is intermittent exotropia? If the eyes are misaligned more often than they are straight, surgery on the eye muscles may be recommended in order to realign the dquint.


Far distance measurement – Measuring the deviation by fixating a far object reduces measurement variability and helps uncover the full deviation by reducing near convergence. Kushner’s Classification of Intermittent intermttent Type Description Percent Basic Distance and Near Measurements are equal 37 Tenacious Proximal Fusion Distance measurement initially exceeds near, but the near measurement increases after 60min.

What are the signs of intermittent exotropia? Development of a secondary convergence insufficiency.

American Association for Pediatric Ophthalmology and Strabismus

Although heredity appears to play a role in exodeviations, the etiology of this disorder is probably multifactorial. Declaration of patient consent The authors certify that they have obtained all appropriate patient consent forms. In cases of permanent visual loss, surgery to straighten the eye is often an option. Some patients may experience double vision diplopia ; others say that they can feel that an eye is misaligned, even though squing do not see anything unusual.

People with intermittent exotropia may experience the outward drift only occasionally, such as when they are very tired, feeling sick, or after drinking alcohol, despite their efforts to refocus. Binocular vision refers to the brain’s ability to see objects with both eyes simultaneously.