Although the nonsurgical treatment for intermittent exotropia is not very. Pedig public website click here for information about the pedig network including questionnaires and study protocols pedig study website click here if you are at a pedig site. Management of intermittent exotropia of the divergence excess. In considering treatment, it is helpful first to consider the natural history of intermittent exotropia. Recently the pediatric eye disease investigator group pedig investigated a different use for parttime occlusion in the management of intermittent exotropia. Pediatric eye disease investigator group public site. We suggest that alternate occlusion therapy can improve the sensory. Does occlusion therapy improve control in intermittent exotropia. This study will highlight the importance of patching ixt patients and assist to approach the proper use of occlusion therapy. Intermittent exotropia ixt, one of the most prevalent forms of childhood strabismus, 25 is characterized by an intermittent outward deviation of one or both eyes, often exacerbated by fatigue, inattention, or illness.
Intermittent exotropia ixt is the most common form of childhood exotropia 1, 2 with an incidence of 32. Today, they may only need spectacle correction alone as. Occlusion therapy this website is designed for use by medical professionals. The patch was worn over one eye for one week and over the other eye the following. Today, they may only need spectacle correction alone as curative treatment. Benefits of patch therapy are limiting suppression, reducing the frequency and amplitude of the deviation, changing the nature of the deviation from constant to intermittent exotropia or from intermittent exotropia to exophoria, however, there is a. Parttime patch therapy for treatment of intermittent exotropia full. Although nonsurgical management for intermittent exotropia is not very. To improve strength and vision in the misaligned eye, some. Strabismus is a general term for an eye condition sometimes associated with amblyopia lazy eye. Observation versus occlusion therapy for intermittent exotropia ixt2 the safety and scientific validity of this study is the responsibility of the study sponsor and investigators.
Observation versus occlusion therapy for intermittent exotropia. While under occlusion therapy, no patient developed occlusion amblyopia or decreased control of the deviation, as might be demonstrated by an enlarging exodeviation or a more frequent exotropia. Fortyeight percent in our series were controlled with patching with an average follow up of 66. Conversion of intermittent exotropia types subsequent to. Visual information processing evaluation and orthoptic and vision therapy page 1 of 15. Conservative management of intermittent exotropia to defer.
Long term results of parttime occlusion for intermittent exotropia. A randomized trial comparing parttime patching with. People with exotropia tend to favor the aligned eye, so vision in the eye turned outward can weaken, resulting in amblyopia. The prolonged monocular occlusion dissipates tonic fusional. Intermittent exotropia is the most common form of strabismus, characterized by an intermittent outward deviation of the eyes, affecting as much as 1% of the population. Parttime patch therapy for treatment of intermittent. Occlusion therapy remains a viable treatment option for some patients with intermittent exotropia. Alternate occlusion decreases the size of the exotropia and improves control. Although the benefit is usually temporary, occlusion can be used to postpone surgical intervention in responsive patients. While generally intermittent exotropia is thought to be a straightforward form of strabismus with predictable surgical outcomes, many enigmas remain with regard to the treatment of this condition. However, theyre two separate conditions altogether, even though an eye patch may be used in treating both. Contrary to the earlier practice of patching one eye for 24 hrs it is now found. Intermittent exotropia, antisuppression therapy, occlusion therapy, patching.
Patients randomized to the occlusion treatment group will receive occlusion patching for 3 hours per day for at least 3 months. Although the benefit is usually temporary, occlusion can be used to postpone surgical intervention in responsive patients 32. Although occlusion treatment for ixt treatment is widely used, there have been no randomized clinical trials evaluating its effectiveness. Previously, families faced fulltime occlusion therapy for their child. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease. Part time patching of the nondeviating eye may convert an intermittent exotropia to a phoria by treating supression and amblyopia. Observation versus occlusion therapy for intermittent. Ats09 a randomized trial comparing patching to atropine for amblyopia in children 7 to intermittent exotropia is the most common type of exotropia in children. Understanding the degree of effectiveness of occlusion treatment for ixt and the natural history of ixt has important public health implications. Pedig training website click here to be directed to the pedig training website. Overcorrecting minus lens therapy has been recommended as a treatment for intermittent exotropia. Intermittent exotropia is a large phoria that is intermittently. Numerous therapies have been implemented to treat intermittent.
We followed 29 patients who were patched for intermittent exotropia from 12. Visual information processing evaluation and orthoptic and. This technique has found some use in very young children. Surgery for intermittent exotropia performed at a very young age has poorer sensory outcomes than surgery performed later. Both parttime patching and observation are appropriate choices for the treatment of intermittent exotropia ixt in children aged 3 to 10 years, researchers conclude in. Part time patching of the nondeviating eye may convert an. Intermittent exotropia xt is one of the most common types of childhood strabismus, occurring in. We have reported findings in children 3 to 10 years of age with ixt as a parallel cohort in the same randomized trial. Benefits of patch therapy are limiting suppression, reducing the frequency and amplitude of the deviation, changing the nature of the deviation from constant to intermittent exotropia or from intermittent exotropia to exophoria, however, there is a concern that occlusion of the eyes may cause fusion failure and worsen deviation control. This should reduce the angle or frequency of an exotropic deviation. Listing a study does not mean it has been evaluated by the u. Role of occlusion in treatment of intermittent exotropia.
The use of parttime occlusion for early onset unilateral. Does overcorrecting minus lens therapy for intermittent. If you are a parent looking for eye patches for your child, please visit our patient website at. Management of intermittent exotropia of the divergence. Part time patching of the nondeviating eye for four to six hours daily may convert an intermittent exotropia to a phoria. The aim of this study was to evaluate the effectiveness of occlusion therapy in the control of intermittent exotropia ixt in children between 4 and 10 years in saudi arabia. Intermittent exotropia american academy of ophthalmology.
Does occlusion therapy improve control in intermittent. The content on this site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. Intermittent exotropia is an exodeviation intermittently controlled by fusional mechanisms. Orthoptic treatment in the management of intermittent. Control of the intermittent deviation can vary throughout the day. To evaluate the effects of parttime occlusion therapy on types of intermittent exotropia and sustainability of converted types. A randomized clinical trial of observation versus occlusion therapy for intermittent exotropia. Although a common condition, the best treatment and optimal timing for this disorder remain unclear, 6, 7 particularly for young children who are often unable to cooperate for. Role of occlusion in treatment of intermittent exotropia vishnoi s k. Nonsurgical management include correction of refractive errors, active orthoptic treatments, prisms and occlusion therapy. These studies revolutionized the treatment of amblyopia.