We contacted the study investigators for incomplete or unclear information regarding study details. A multicenter randomized controlled trial that aimed to report natural history data found that of the 165 participants in the observation group who completed the 6month outcome, deterioration occurred in 10 (6.1%) (3 of these 10 started treatment without meeting deterioration criteria) (X(T)2 2012). WebTreatment Outlook Overview Exotropia is a type of strabismus, which is a misalignment of the eyes. WebYour eye doctor will discuss which option is best for you. Binocular vision training after intermittent exotropia surgery, Influence of corneal plastic lens on ocular surface and visual quality of intermittent exotropia with myopia. Issue 2, 2009: updated search yielded no new trials. If unsuccessful, then surgery should be considered. Inclusion in an NLM database does not imply endorsement of, or agreement with, Pathophysiology of exo deviations. Choi DG, Rosenbaum AL. Richard Wormald,Coordinating Editor for CEV, acknowledges financial support for hisCEV research sessionsfrom the Department of Health through the award made by the National Institute for Health Research to Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology for a Specialist Biomedical Research Centre for Ophthalmology. We judged the evidence for exotropia control to be of high certainty. Orthoptics: Convergence exercises improve convergence fusional amplitudes and the near point of convergence. Mental illness in young adults who had strabismus as children, The prognostic value of lateral gaze measurements in intermittent exotropia, Female predominance in intermittent exotropia. In: Current Concepts in Pediatric Ophthalmology and Strabismus. If you dont have the chance to make it to the spa or the esthetician, you can still get that type of treatment at home. Surgical with any nonsurgical adjunct pre or postoperatively, or both, versus surgical without nonsurgical adjunct. Comparison 1: Bilateral lateral rectus recession versus unilateral lateral rectus recession with medial rectus resection, Outcome 1: Motor alignment at near at 3 years measured by PACT, Comparison 1: Bilateral lateral rectus recession versus unilateral lateral rectus recession with medial rectus resection, Outcome 2: Motor alignment at distance at 3 years measured by PACT. Classification and misclassification of sensory monofixation in intermittent exotropia. The followup period was three years, with outcomes measured every six months. In: Ocular Motility and Strabismus. Bothersome diplopia: Surgery is indicated for patients with this condition. When the exotropia appears more frequently and is poorly-controlled, other treatment may be necessary. Wiggins RE, von Noorden GK. Odd digits were assigned to group A and even digits to group B. The results section of the Kushner 1998a manuscript reported that 99 participants were operated on during the study enrollment period, some of whom were excluded because they were recruited for another study (Kushner 1998b). Baseline characteristics were similar between groups. Cooper E. The surgical management of secondary exotropia. Santiago AP, Ing MR, Kushner BJ, Rosenbaum AL. Surgery should result in a complete correction of the exotropia and restoration of normal binocular alignment at distance and near fixation. Eye turning only happens occasionally, as a result of one of these circumstances: Most bouts of intermittent exotropia are infrequent, but they can happen so often that it becomes a permanent problem. The largest limitation we faced was that studies did not report reviewspecified outcomes. 22 not 1024. Pseudonyms include distance exotropia, divergence excess exotropia, periodic exotropia, and exotropia of inattention. 5th ed. exotropia control at distance and near at six months; and. The most important aspect of the management is to find and/or eliminate and/or reverse a treatable cause of the exotropia. Symptoms include: UT Southwestern ophthalmologists perform a comprehensive medical eye exam to confirm a diagnosis of exotropia and rule out other conditions. IXT2 2014 reported stereoacuity at near at six months using the Preschool Randot test, Titmus fly, and Titmus circles tests at 40 centimeters. magnitude of the deviation at distance and near measured by PACT at six months. Nonsurgical treatment is indicated in patients with excellent or good control of the deviation as measured by normal distance stereoacuity and in young children where the risk of surgical overcorrection is undesirable. Jampolsky A. Ocular divergence mechanisms. There was no difference between groups for children between 8 and 13 years of age. There was no evidence of a difference in near stereoacuity loss of two or more octaves from baseline (risk ratio (RR) 0.77, 95% CI 0.35 to 1.71, Analysis 1.3): Comparison 1: Bilateral lateral rectus recession versus unilateral lateral rectus recession with medial rectus resection, Outcome 3: Loss of 2 octaves near stereoacuity measured by Preschool Randot test. The one ongoing RCT may help address these issues (ISRCTN04267774). Exotropia Success was The range of followup was 12 to 15 months. Surgical versus any nonsurgical intervention. Kiyak Yilmaz 2015 did not report how many participants were lost to followup. Exotropia - All About Vision Glanville JM, Lefebvre C, Miles JN, Camosso-Stefinovic J. Anand 2020 used computergenerated assignments for randomization, and allocation was concealed using opaque, sealed envelopes. Reports of this complication range from 1.5%, Beneish 1994, to 27%, Edelman 1988. Masking of participants and personnel administering treatment was not possible for all of the included trials due to the nature of the interventions. Outcomes were assessed by the surgeon who performed surgery. At other times the eyes are aligned and binocular single vision is maintained. Govindan M, Mohney BG, Diehl NN, Burke JP. Intermittent Exotropia - American Academy of Patients with exotropia associated with a neurologic disorder should be referred for a neurologic consultation. Federico G Velez, MD is a member of the following medical societies: American Academy of Ophthalmology, American Association for Pediatric Ophthalmology and Strabismus, Association for Research in Vision and OphthalmologyDisclosure: Nothing to disclose. O'Neal TD, Rosenbaum AL, Stathacopoulos RA. Intermittent exotropia is sometimes subdivided into 'basic' and 'distance' subtypes, but the clinical characteristics for these subtypes of X(T) are very similar, and, as investigation is also essentially the same (Cooper 1977), they are considered together in this review and jointly referred to as 'intermittent exotropia,' or X(T). Santiago AP, Ing MR, Kushner BJ, Rosenbaum AL. In: Strabismus. Bilateral lateral rectus recession: "underwent symmetric lateral rectus recessions"; "surgery was based on the measurement obtained at 6 m with appropriate optical correction in place and prior to monocular occlusion. Exotropia may be seen in children with very poor vision in one eye (sensory exotropia) or in association with certain genetic disorders that affect the eyes. Anand 2020 did not report quality of life measures. The Newcastle Control Score: a new method of grading the severity of intermittent distance exotropia, Variability of control in intermittent exotropia. Joyce 2015 included study designs other than RCTs (i.e. There was evidence favoring patching (n = 249) compared to observation (n = 252) in near alignment (MD 2.23, 95% CI 4.02 to 0.44, Analysis 2.1). Yi Pang, Jessica Gayleard, Lawrence Gnanaraj, and Genie Han were responsible for assisting Sarah Hatt in the most recent update of the review, providing help with the following. In: Manley DR, editors(s). Copyright 1995-2022 Regents of the University of Michigan, Outward deviation of the eyes, often intermittently at first, Sensitivity (closing one eye) in bright light, Positive family history of strabismus (misaligned eyes), amblyopia, childhood cataract, or glaucoma, Some genetic disorders that affect the eyes, But most often there are no known risk factors in children with exotropia, Visual acuity measurement in each eye and both eyes together (age appropriate), Cycloplegic refraction (with dilating eye drops). Early vs late surgery for intermittent distance exotropia. Homeless grandmother Valencia Terrell arrives with her grandchild to stay temporarily at a friend's home in Atlantic City, New Jersey. New Patient Appointment [QxMD MEDLINE Link]. Additional measurement of the exodeviation with the individual fixing on a far distance target has been recommended to uncover the maximum misalignment (Burian 1971b; Knapp 1960; Kushner 1998c). patching (n = 159) (mean, SD): 1.84 log arcsec (0.31); observation (n = 165) (mean, SD): 1.84 log arcsec (0.33). Studies have explored the role of measuring healthrelated quality of life in children with X(T) to more formally measure these potential social and function concerns (Hatt 2010b). In another retrospective analysis by Figueira 43 that aimed to identify the best treatment option for intermittent exotropia, it was reported that surgery combined with preoperative orthoptic/occlusion therapy achieved the highest successful treatment rate at the 5 year follow-up (84.6%) when compared to surgery alone (25%). Surgery versus Active Monitoring in Intermittent Exotropia (SamExo): study protocol for a pilot randomised controlled trial. The short-term follow-up could be considered the possible cause of the difference in reported success rate. Both Kushner 1998a and IXT1 2019 explicitly did not allow adjustable techniques during surgery. "visible hump/scar, foreignbody sensation, and persistence of congestion"); however, these outcomes were not considered severe or minor adverse events according to the review protocol. Examiners were masked at every 6month postoperative visit. This, however, can inhibit the eyes connection to the brain resulting in amblyopia (poor vision in one eye from disuse) or loss of depth perception. Convergence Insufficiency In: An office-based scale for assessing control in intermittent exotropia. The two RCTs comparing nonsurgical treatment of X(T) (patching versus observation; IXT2 2014 and IXT2 2015) were conducted by the same investigator group, therefore they followed identical protocols and reported the same outcomes. Kushner BJ. Secondary outcomes included: IXT2 2014 and IXT2 2015 had a primary outcome of deterioration within six months, defined as constant exotropia of 10 or greater at distance and near by SPCT or loss of near stereoacuity of 2 octaves (0.6 log arcsec) or more from the Preschool Randot stereoacuity test. Any degree of tropia, or phoria greater than that stated above (by implication) or any additional treatment was considered to be an unsatisfactory outcome. Exotropia is a condition in which one or both eyes turn outward away from the The majority of participants were children (younger than 18 years of age). In: Duane TD, editors(s). Comparison 3: Lateral rectus recession and medial rectus plication compared with lateral rectus recession and medial rectus resection, Outcome 2: Motor fusion test at 1 year measured by synoptophore and Titmus fly test. Moreover, all of the included studies had a high risk of performance bias because participants could not be masked. Management options for various types of intermittent exotropia. Eye. The impact of prism adaptation test on surgical outcomes in patients with primary exotropia, Selective surgery for intermittent exotropia based on distance/near differences, Comparison between limbal (von Noorden) and para limbal (Santiago) conjunctival incisions for adjustable recessions of horizontal recti. The recession of the lateral rectus muscle involves weakening the muscle by pulling it back few millimeters (each millimeter will weaken the muscle by 3 diopters), so the amount will depend on the degree of divergent squint, e.g. There are different types of exotropia. Only medians were reported for IXTQ scores. Does overcorrecting minus lens therapy for intermittent exotropia cause myopia? Children with X(T) seem to show greater testretest variability than individuals with constant strabismus (Adams 2008). Exotropia. Anand 2020 reported measuring stereoacuity, but did not report data for this outcome in the study. Caltrider N, Jampolsky A. Overcorrecting minus lens therapy for treatment of intermittent exotropia. [QxMD MEDLINE Link]. Opioids may not work for back pain, study finds | CNN J AAPOS. Correction of refractive error: All kinds of refractive errors, particularly astigmatism and anisometropia, must be corrected. Several secondary outcomes were defined post hoc. In some children, where the exotropia is infrequent or well-controlled, close observation by an orthoptist or ophthalmologist, without other specific treatment, is warranted. Anand 2020 compared lateral rectus recession and medial rectus plication versus lateral rectus recession and medial rectus resection. exp placebo/16. Prism adaptation test: "prism adaptation test was performed using Fresnel PressOn prisms (Health Care Specialties Division/3M, St. Paul, Minnesota, USA), while the patients were wearing full corrective lenses without cycloplegia. We screened the full texts of 12 reports (12 studies), none of which were eligible for inclusion in the review. Intermittent Exotropia | Texas Children's Hospital Int Ophthalmol Clin. There was probably no difference between groups with regard to distance alignment (lowcertainty evidence due to imprecision) or motor fusion (very lowcertainty evidence due to imprecision and risk of bias). The low clinical heterogeneity allowed for metaanalysis of several outcomes. Unilateral recession-resection in children with exotropia of the convergence insufficiency type. exp control group/21. The deviation may be constant or intermittent, and the deviating eye may always be one eye or may alternate between the two eyes. identify whether or not initial surgical overcorrection is advantageous in achieving optimal treatment outcomes. For children with congenital exotropia, surgery is usually recommended early in life to maximize vision benefits and reduce the risk of complications. Exodeviations. However, these nonstandardized observations will vary depending on how much time a parent spends with their child, etc. See Characteristics of excluded studies table for additional details. A cycloplegic refraction can also be performed. Home remedies for exotropia may include eye exercises, relaxation techniques, and maintaining a healthy lifestyle. It is often noticed between 4 and 6 weeks of age. Motor alignment at near fixation ranged across control groups from 23.8 PD to 27.9 PD. Sensory exotropia can affect people at any age. Those medications include chemotherapy drugs, antibiotics, ADHD medication and more. ((misalig$ or deviat$) adj10 ocular$).tw.19. For the motor alignment outcome, it is likely that the participant could not influence the outcome, therefore we did not factor in performance bias in our judgement of the certainty of the evidence. 9 not (9 and 10)12. randomly.ab,ti.6. exp single blind procedure/5. The relationship of age and other baseline factors to outcome of initial surgery for intermittent exotropia. 1 participant in the bilateral surgery group and 1 participant in the unilateral surgery group were excluded in outcome analysis due to loss to followup. WB Saunders Co. 1999. 2005 Jun. Generally treatment may be offered if the care provider or parents, or both, estimate the amount of time the eyes are misaligned (exotropic) to be equal to or greater than the amount of time they are aligned and working together, that is exotropia present greater than or equal to 50% of waking hours is often used as a guideline (Santiago 1999; von Noorden 2002), and is based on concerns that extended periods of misalignment in children may cause suppression to become established resulting in loss of BSV (PrattJohnson 1969). Trans Am Acad Ophthalmol Otolaryngol. In Kushner 1998a, 19 of 36 participants were allocated to bilateral rectus recessions and 17 of 36 to unilateral lateral rectus recession and medial rectus resection. Comparison 3: Lateral rectus recession and medial rectus plication compared with lateral rectus recession and medial rectus resection, Outcome 1: Motor alignment at distance at 1 year measured by PACT. Exotropia (Eyes Turning Outward): Types, Signs & Treatment Am J Orthop. As it was unclear why or how participants were included in one study versus the other, and at what point participants were randomized, we contacted the author for further information. An early study by von Noorden, von Noorden 1966, is quoted, von Noorden 2002, as finding 75% of patients progressing over an average of three years, but the original report is unavailable. Intermittent exotropia (IXT) is an exodeviation intermittently controlled by fusional mechanisms and spontaneously breaks down into a manifest exotropia. Treatments Exotropia Treatment The age maximum of the other studies varied from 35 months to 18 years. IXT1 2019 found no adverse events in the bilateral lateral rectus recession group (n = 101) and three adverse events in the unilateral rectus recession with medial rectus resection (n = 96) up to eight weeks postsurgery (RR 7.36, 95% CI 0.39 to 140.65, Analysis 1.4). Non-surgical exotropia treatment. IXT2 2015 did not measure stereoacuity at distance because participants were too young to measure. Your orthoptist or ophthalmologist may prescribe in-office exercises, exercises to do at home, or both. Where will my child's eye muscle surgery be performed? Two review authors independently reviewed the titles and abstracts obtained from the literature searches, classifying each record according to inclusion criteria eligibility as 'yes, relevant,' 'maybe,' or 'no, not relevant.' All About Vision and AllAboutVision.com are registered trademarks of AAV Media, LLC. or/157. We conducted an additional topup search in January 2021. Medicine. WebTreatment may include glasses, patching, eye exercises, medication or surgery. Of the 18 fulltexts (18 studies) reviewed, one study was eligible for inclusion (Anand 2020), and five studies were assessed as awaiting classification. parents' perception of their children's quality of life). Development of amblyopia coinciding with postoperative overcorrection. We used data extraction forms developed by Cochrane Eyes and Vision, and administered by Covidence, to record data for individual studies (Covidence). 7 and 810. Development and initial validation of quality of life questionnaires for intermittent exotropia. WebTreatment Eye muscle surgery to improve ocular alignment is generally recommended if one or more of the following criteria are present: If the exotropia is present for more than 50% of each day. 23 not 1125. exp comparative study/26. IXT1 2019 and IXT2 2014 conducted followup at three years, whereas Kiyak Yilmaz 2015, Anand 2020, and Kushner 1998a conducted followup at one year. Sensory exotropia. ", Primary outcome: surgical success, as defined by "if the postpatch deviation at distance was between 10 PD of exophoria or exotropia to 5 PD of esophoria or esotropia at last followup", Random sequence generation (selection bias), "For allocation of the participants, a computergenerated list of random numbers was used. "The authors have no proprietary or commercial interest in any materials discussed in this article". Of note, the level of distance stereoacuity measured appears to be influenced by the test used, with evidence that stereoacuity may measure normal on one test and subnormal on a different test during the same examination in individuals with X(T) (Holmes 2007). Kiyak Yilmaz 2015 randomized 18 participants to receive prism adaptation test prior to eye muscle surgery, and 16 participants to receive eye muscle surgery alone. Participants were not masked due to the nature of the interventions (patching vs observation). The controversy regarding the optimum age for surgery to correct X(T) remains unresolved. Unilateral versus unilateral (e.g. exp latin square design/22. Cochrane Handbook for Systematic Reviews of Interventions version 5.2.0 (updated June 2017), Cochrane, 2017, Available from training.cochrane.org/handbook/archive/v5.2. SEE RELATED: Why kids eye exams are so important. exp prospective study/28. The mean change in distance alignment was 10.13 PD. An additional six studies were classified as awaiting classification, and one study is ongoing. Minimally invasive strabismus surgery versus paralimbal approach: a randomized, parallel design study is minimally invasive strabismus surgery worth the effort? Adjustable sutures may be used, but results tend to be unstable because of the absence of fusion. 34(3):245-51. Bright light can also induce wandering and parents often report that the child squints or closes one eye in bright sunlight. Exotropia with neurologic causes and field defects. Some mild cases dont need to be treated and go away on their own, between 6 and 8 weeks of age. What do the numbers on your eyeglass frames mean? Buy Now. In email communication, Dr Kushner clarified that 29 patients were excluded from the, Not for basic or distance intermittent exotropia, Not for basic or distance intermittent exotropia*, Individuals diagnosed with intermittent exotropia, Bilateral vs unilateral strabismus surgery. 1993:41. Kiyak Yilmaz 2015 did not report quality of life measures. Sarah Hatt and Lawrence Gnanaraj were both responsible for the original review, as follows. The methodological rigor of the studies was generally high. Medicaid: Eligibility and Vision Benefits. The risks associated with early surgery are overcorrection leading to loss of stereoacuity and the development of amblyopia, but the benefits are that successful surgery may be more likely to restore normal binocular alignment. (randomized or randomised).ab,ti.3. With the exception of Kiyak Yilmaz 2015 and Anand 2020, the included studies enrolled participants who averaged seven years of age or younger. The condition can be inherited or acquired due to another health condition, such as stroke, thyroid disease or cataracts, among other conditions. Deterioration was defined as meeting one or both of the following criteria during a masked examination at either the 3month or 6month visit: 1) a constant exotropia (throughout the exam) of 10 or greater at distance and near by SPCT, confirmed by a retest, or 2) loss of near stereoacuity of 2 octaves (0.6 log arcsec) or more from the better of a test and retest of Preschool Randot stereoacuity at baseline, confirmed by a retest. Burke MJ. What home preparations will my child follow on the day before eye muscle surgery? However, all other outcomes were reported as specified in the study protocol. See Characteristics of studies awaiting classification table for additional details. Health & Parenting Guide - Your Guide to Raising a Happy Exotropia - an overview | ScienceDirect Topics Cochrane, 2019, Available from training.cochrane.org/handbook/archive/v6. It is a common association with many types of strabismus, especially infantile esotropia and intermittent exotropia. ", Primary outcome: satisfactory outcome, defined as between 10 diopters exophoria and 5 diopters esophoria. The unit for randomization and analysis was the individual in all included trials. Choi MY, Hyung SM, Hwang JM. Dawson EL, Sainani A, Lee JP. Systemic associations with X(T) include mental illness, with a recent study reporting a higher incidence of mental illnesses in individuals with X(T) compared to those with esotropia and the general population (Mohney 2008).

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