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.
|Published (Last):||27 October 2012|
|PDF File Size:||9.76 Mb|
|ePub File Size:||1.49 Mb|
|Price:||Free* [*Free Regsitration Required]|
American Association for Pediatric Ophthalmology and Strabismus. In case there is no improvement for 4 months, it is discontinued.
Exotropia (divergent squint)
A minority of patients with intermittent exotropia may have the monofixation syndrome and do not develop normal bifoveal fixation with high grade of stereopsis. Differential diagnostic characteristics of intermittent exotropia and true exophoria. If a residual esotropia persists past 3 weeks, then the patient should be treated with prism glasses to neutralize the esotropia. Am Orthopt J ; Blakiston’s Son and Co.
Binocular vision refers to the brain’s ability to see objects with both eyes simultaneously. I ntermittent exotropia in the right eye. Symptoms are on the rise with increased reading, desk work, and computer use.
The role of orthoptics in the evaluation and treatment of intermittent exotropia. 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.
Conflicts of interest There are no conflicts of interest.
What is binocular vision? Binocular vision refers to the brain’s ability to see objects with both eyes simultaneously. Some patients or family members notice the exotropia more when the patient is tired or daydreaming.
Symptoms Patients with intermittent exotropia rarely complain of symptoms. Some strabismologists recommend a use of base-in prisms to enforce bifoveolar stimulation.
Intermittent Divergent Squint in Prematurity and Its Neurophysiological Aspects
Views Read Edit View history. Any refractive error especially a hypermetropia digergent be fully corrected. A prolonged alternate dviergent testing should be used in patients with intermittent exotropia to suspend tonic fusional convergence. Evidence from the available literature suggests that unilateral surgery was more effective than bilateral surgery for individuals affected with intermittent exotropia. Nixon RB et al: In some cases, an exophoria progresses to an intermittent exotropia that eventually becomes constant.
Investigative Ophthalmology and Visual Science ; 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. This outward drift, which occurs only in those moments of visual inattention, can be controlled when visual attention is refocused. The child developed jaundice in her neonatal period for which she received phototherapy and exchange transfusion.
The post-operative results and stability of exodeviations.
Squinting or frequent rubbing of the eyes is also common with exotropia. Visual feature integration and the temporal correlation hypothesis. Convergence exercises may be helpful in patients who have a remote near point of convergence, or in whom poor divergetn convergence amplitudes are demonstrated.
Your orthoptist and ophthalmologist will discuss the ideal timing of surgery for your situation. According to squinr Duane’s theory did not take into account the abnormal position of rest associated with exodeviations. Others are unaware that an eye is turning unless it is mentioned by another person. When a child requires surgery, the procedure is usually performed before the child attains school age.
In that case, the eye turn is not showing up during the “command performance” of the eye exam because the child is making an extra effort to pay attention, be “on good behavior,” please the adults, etc.
See Wikipedia’s guide to writing better articles for suggestions. Children intermityent intermittent exotropia commonly close or squint one eye at times, especially when they are exposed to bright sunlight.
The exact reason people with intermittent exotropia close one eye in bright light remains unknown. Some have proposed the use of alternate day, alternate eye patching to help ssquint exotropia.
Exotropia is a form of strabismus where the eyes are deviated outward. This theory holds that the ability to suppress temporal vision allows the eye to diverge. Ophthalmol Clin North Am.