RESUMEN
AIM: To analyze the research status and future development trends of intermittent exotropia(IXT)by bibliometric study.METHODS: Bibliometrics methods were used and the related literatures in the Web of Science Core Collection(WoSCC)database from 2003 to 2022 were retrieved. CiteSpace6.2.R2 software was used to conduct visualized analysis of publications of one year, countries, institutions, journals, authors, references and keywords.RESULTS: A total of 620 literatures on IXT were retrieved from 2003 to 2022, and there has been a progressive increase in the number of publications. South Korea and the United States, Mayo Clinc and Holmes JM were the most productive and impactful country, institution and author, respectively. The Journal of American Association for Pediatric Ophthalmology and Strabismus(J AAPOS)published the most manuscripts(78 publications). The keywords with the strongest citation burst were surgery, epidemiology, alignment and recurrence.CONCLUSION: Visualized analysis conducted by CiteSpace software could objectively show the quantity changes and distribution of literatures on IXT from 2003 to 2022. Furthermore, the research hotspot of IXT has gradually shifted from surgery and epidemiology to fusion and recurrence.
RESUMEN
AIM: To compare the clinical effectiveness of using multifocal defocus spectacle lenses, orthokeratology lenses, and single-vision spectacle lenses in patients with myopia and small-angle intermittent exotropia.METHODS: This retrospective study included 150 patients aged 8-15 years with basic intermittent exotropia, strabismus of -10△ to -20△ prism diopters(D)(block lenses), and spherical equivalents of -1.00 to -5.50 D, who visited our hospital from June 2021 to September 2022. They were selected and divided into three groups on a voluntary basis: the HAL group(50 patients with multifocal myopia defocus spectacle lenses), the OK lens group(50 patients with nighttime orthokeratology lenses), and the SVL group(50 patients with regular single-vision spectacle lenses). After wearing the lenses consistently, changes in axial length, prism diopters with the naked eye and lenses(prism at 33 cm), positive fusional vergence of blurred points, and near stereopsis were observed and compared among groups before intervention and after 1 a. The Newcastle control score(NCS)was used to evaluate the eye position control ability of the patients in the three groups.RESULTS: Before the intervention, the axial lengths of the HAL, OK lens, and SVL groups were 24.83±0.91, 24.93±0.97, and 24.98±0.68 mm, respectively(P>0.05). After 1 a, the axial lengths of the three groups were 25.02±0.90, 25.18±0.97, and 25.45±0.65, respectively(P<0.05). Compared with an increase of 0.47±0.30 mm in the SVL group after 1 a, the axial length of the HAL and OK lens groups increased by 0.19±0.06 and 0.25±0.21 mm, respectively(both P<0.05). Before intervention, the prism diopters of the HAL, OK lens, and SVL groups measured using the prism were -15.00△±3.12△, -14.34△±3.00△ and -14.06△±3.22△, respectively. After 1 a, the prism diopters of the three groups with lenses were -9.34△±3.84△, -18.42△±4.41△, and -19.58△±5.21△, respectively, which increased by 5.66△±2.13△, -4.08△±3.34△, and -5.52△±3.70△, respectively, compared with the preintervention values(P<0.05). Before intervention, the near stereopsis in the HAL, OK lens, and SVL groups were 89.20″±54.65″, 93.00″±52.54″, and 88.40″±55.31″, respectively(P>0.05). After 1 year, near stereopsis in the groups were 76.00″±20.40″, 81.20″±18.91″, and 100.60″±51.41″, respectively(P<0.05). The positive fusional vergence(fuzzy point)of the three groups was 15.04±1.97, 15.14±1.67, and 14.62±1.47, respectively, before intervention(P>0.05), and it was 17.10±2.02, 13.12±1.41, and 13.26±2.45, respectively, after 1 a(P<0.05). In addition, the eye position control in the HAL group was significantly better than that in the OK lens and SVL groups after wearing lenses for 1 a(P<0.05).CONCLUSION: For patients with myopia and small-angle intermittent exotropia, wearing HAL can effectively control changes in strabismus and axial length compared with OK lenses and SVL, particularly for better control of strabismus, whereas wearing OK lenses or SVL would result in exotropic drifts. Stereopsis and positive fusional vergence were significantly improved in the HAL group.
RESUMEN
AIM: To compare the changes of exotropia deviation in children with basic type of intermittent exotropia before and after monocular occlusion test.METHODS: Prospective clinical study. A total of 258 children with basic type of intermittent exotropia who underwent strabismus correction in our hospital from July 2021 to September 2022 were selected, including 122 males and 136 females, aged from 5 to 12 years, with an average age of 8.0±3.1 years. The exotropia deviation was measured at distance(6 m)and near(33 cm)fixation by prism alternating occlusion method, and the exotropia deviation was checked again after covering the non-dominant eyes of children for 40 min.RESULTS: Before and after the monocular occlusion test, the exotropia deviation at distance(6 m)fixation was 28.23△±10.79△ and 29.79△±10.85△, respectively(t=-0.903, P=0.368), while the exotropia deviation at near(33 cm)fixation was 33.14△±8.89△ and 36.90△±10.76△, respectively(t=-2.377, P=0.019).CONCLUSIONS: Monocular occlusion test has a great impact on the exotropia deviation at near(33 cm)fixation in children with basic type of intermittent exotropia before surgery. It can expose the maximum exotropia deviation, reduce the rate of undercorrection after strabismus surgery, and provide a reliable surgical plan.
RESUMEN
Intermittent exotropia(IXT)is a common ophthalmic disease with high incidence, variable deviation, and varying degrees of impaired binocular visual function. The defect of binocular visual function is related to the changes of visual cortex. IXT involves the functional changes of many brain regions, including the cortical areas related to binocular fusion. After correcting the eye position, the abnormal changes of cerebral cortex still exist in some patients with IXT, and the recovery of binocular vision is still difficult. In order to solve these problems, visual perception training is gradually applied to the postoperative reconstruction of binocular visual function in patients with IXT. Visual perception training repairs the visual cortex from the brain level, improving the ability of the visual cortex to process information by constantly stimulating the visual center, thus repairing the visual central function, so that patients can obtain good binocular visual function, stabilize the eye position and reduce recurrence. This article reviews the mechanism of binocular visual impairment and the role of visual perception training in the treatment of IXT. It is hoped to provide more evidence for visual perception training to reconstruct postoperative binocular visual function and reduce the recurrence rate in patients with IXT.
RESUMEN
In this study, we explored the neural mechanism underlying impaired stereopsis and possible functional plasticity after strabismus surgery. We enrolled 18 stereo-deficient patients with intermittent exotropia before and after surgery, along with 18 healthy controls. Functional magnetic resonance imaging data were collected when participants viewed three-dimensional stimuli. Compared with controls, preoperative patients showed hypoactivation in higher-level dorsal (visual and parietal) areas and ventral visual areas. Pre- and postoperative activation did not significantly differ in patients overall; patients with improved stereopsis showed stronger postoperative activation than preoperative activation in the right V3A and left intraparietal sulcus. Worse stereopsis and fusional control were correlated with preoperative hypoactivation, suggesting that cortical deficits along the two streams might reflect impaired stereopsis in intermittent exotropia. The correlation between improved stereopsis and activation in the right V3A after surgery indicates that functional plasticity may underlie the improvement of stereopsis. Thus, additional postoperative strategies are needed to promote functional plasticity and enhance the recovery of stereopsis.
Asunto(s)
Humanos , Exotropía/cirugía , Percepción de Profundidad/fisiología , Estrabismo/cirugía , Músculos Oculomotores/cirugíaRESUMEN
AIM: To investigate the status of stereoscopic reconstruction in adults with intermittent exotropia after surgery, and analyze related influencing factors.METHODS: A retrospective study was conducted among 196 adults with intermittent exotropia who were admitted to our hospital from January 2019 to January 2021. All patients underwent strabismus surgery, and their preoperative and postoperative data were collected.RESULTS: Near and distal stereo visual function was not found in all the included 196 patients before surgery. The reconstruction rates of near stereo visual function and distal stereo visual function were 52.6%(103/196)and 50.5%(99/196), respectively. There were significant differences in surgical age, age of onset, course of disease, and postoperative level of horizontal strabismus between patients with near stereoscopic reconstruction(103 cases)and those without reconstruction(93 cases; P<0.001). Multivariate Logistic regression analysis showed that age of onset, course of disease, and postoperative level of horizontal strabismus were factors influencing near stereo visual function reconstruction(P<0.05). The receiver operating characteristic(ROC)curve showed that the area under the curve(AUC)values of age of onset, course of disease and postoperative level of horizontal strabismus to predict near stereo visual function reconstruction were 0.757, 0.737 and 0.727, respectively(P<0.001). There were significant differences in surgical age, age of onset, course of disease, and postoperative level of horizontal strabismus between patients with distal stereoscopic reconstruction(99 cases)and those without reconstruction(97 cases; P<0.001). Multivariate Logistic regression analysis showed that age of onset and course of disease were factors influencing distal stereo visual function reconstruction(P<0.05). ROC curve showed that the AUC values of age of onset and course of disease to predict distal stereo visual function reconstruction were 0.672 and 0.821, respectively(P<0.001).CONCLUSION: Stereoscopic reconstruction in adults with intermittent exotropia after surgery is affected by many factors, such as age of onset and course of disease. The influencing factors of near stereo visual function reconstruction and distal stereo visual function reconstruction are different, which deserves attention.
RESUMEN
AIM: To investigate the role of visual perception training on the recovery of visual function at all levels and the improvement of perceptual eye position in children with intermittent exotropia(IXT).METHODS: Prospective clinical study. A total of 74 patients with IXT who received corrective surgery for strabismus in the Ophthalmology Department of the First People's Hospital of Lanzhou City from January to June 2022 were collected and followed up for 3mo. The patients were randomly divided into 2 groups at 1d after surgery: 35 patients in the training group received binocular visual perception training, and 39 patients in the control group did not receive visual training. The changes of visual function and perceived eye position at all levels were observed at 1d and 3mo after operation.RESULTS: There were 24 patients(69%)with simultaneous perception in the training group at 1d after surgery and 34 patients(97%)with recovered visual function at 3mo after surgery, which was significantly higher than 1d after surgery(P=0.002). Furthermore, there were 22 cases(56%)of fusion function in the control group at 3mo after surgery, 13 cases(33%)of far stereopsis, 20 cases(51%)of dynamic stereopsis and 17 cases(44%)of static fine stereopsis. In the training group, there were 31 cases(89%)of fusion function, 25 cases(71%)of far stereopsis, 30 cases(86%)of dynamic stereopsis and 27 cases(77%)of static fine stereopsis, which were significantly higher than those in the control group(all P<0.05). The degree of perceived eye displacement in the training group decreased more significantly than that in the control group(all P<0.05).CONCLUSION: Postoperative visual perceptual training in children with IXT can promote recovery of visual function at all levels, improve perceptual eye position and enhance the control of eye position at the perceptual level of the brain.
RESUMEN
AIM: To analyze the strabismus surgery situation of adolescents and children in Yunnan province.METHODS: A retrospective analysis was conducted on medical records data of 3 068 adolescents and children who received strabismus surgery at Affiliated Hospital of Yunnan University from January 2017 to December 2021. The analysis included gender, constituent ratio of age, distribution of strabismus types and combination with other ocular diseases, etc.RESULTS: Among the included patients, 52.12% were males, and 47.88% were females. Preschool patients(1 to 6 years old)accounted for 32.89%, primary pupils(7 to 12 years old)accounted for 45.89% and high school students(13 to 18 years old)accounted for 21.22%. Exotropia accounted for 63.17% of the total strabismus, of which intermittent exotropia was the most common type. Esotropia accounted for 19.69%, and concomitant esotropia was the most common type. The special type of strabismus accounted for 17.14%, and A-V syndrome and dissociative vertical deviation(DVD)were the most common types. Strabismus combined with ametropia accounted for 61.02% and amblyopia accounted for 10.89%. A few patients also combined with other eye diseases.CONCLUSION: In Yunnan province, intermittent exotropia was the most common type of strabismus among adolescents and children. Some patients combined with other ocular diseases.
RESUMEN
AIM: To investigate the effect of wearing an orthokeratology lens on postoperative binocular vision rebuilding in patients with intermittent exotropia combined with myopic refractive error.METHODS: Prospective control study. A total of 60 patients(120 eyes)with intermittent exotropia and myopia who underwent surgical treatment in our hospital from June 2019 to December 2020 were selected. Patients who wore orthokeratology lenses or monofocal frame glasses after surgery were divided into a treatment group(group A)and a control group(group B)according to the wishes of patients and their families, with 30 cases(60 eyes)in each group, and they were followed-up for 6mo. The third level visual function and Titmus near stereoscopic visual function of the two groups of patients were observed before and 6mo after surgery.RESULTS: There was no statistical significance in all observation indicators between group A and group B before surgery(P>0.05). After 6mo of surgery, patients with intermittent exotropia achieved significant improvement in binocular visual function and corrected eye position. Group A was superior to group B in terms of fusion range and near stereoscopic visual function(P<0.05). There was no statistical significance between the two groups in terms of simultaneous vision and stereoscopic visual function(P>0.05).CONCLUSION: The binocular visual function of patients with intermittent exotropia after surgery has significantly improved. Wearing orthokeratology lenses can effectively improve binocular visual function in patients with intermittent exotropia combined with myopia after surgery.
RESUMEN
@#Spontaneous consecutive exotropia (SCXT) in conservatively managed accommodative esotropia is not widely discussed. The author presents a case series of 4 patients with SCXT describing patient characteristics and possible risk factors. Management modifications based on this series are proposed. Four cases of patients who initially presented with accommodative esotropia and later developed SCXT are presented. The age range at presentation was between 4 months to 3 years, with total follow-up ranging between 8–15 years. All four cases presented with esotropia on or before the age of 3 years, with initial hyperopia ranging between +1.50 to +4.25. The SCXT occurred between ages 2–7 years. Possible risk factors identified include amblyopia, dissociated vertical deviation, rapid control of esodeviation, inferior oblique overaction, and poor follow-up during the course of their strabismus. The author recommends earlier tapering of hyperopia correction following initial control with full cycloplegic refraction. Identified risk factors should alert the specialists to be wary of SCXT.
RESUMEN
@#Silver-Russell Syndrome (SRS) is a rare disorder associated with prenatal and postnatal growth retardation with associated characteristic facial and ocular features including strabismus. We report the outcome of strabismus surgery performed for exotropia in a 4-year-old patient with SRS. The patient presented with decreased visual acuity and constant exotropia of the right eye noted since 3 months of age. Systemic SRS characteristics consisted of relative macrocephaly, short stature, forehead prominence and stunted growth pattern. An X-pattern exotropia is consistent with bilateral tight lateral recti muscles with overelevation in adduction of the left eye was present. Patient underwent unilateral right lateral rectus recession and right medial rectus resection for a 50-prism diopter constant exotropia. Patient had a favorable outcome of within 8 prism diopters from orthotropia at 1st, 3rd-, 6th- and 12th-month post-operatively.
Asunto(s)
Exotropía , MegalencefaliaRESUMEN
Background: Strabismus is an ocular condition wherein the visual axis of two eyes do not meet at an object of regard, with esotropia being the most common pattern of strabismus. To ?nd the Aim: prevalence of strabismus in children between 5-20 years of age attending the OPD of Department of Ophthalmology, Government Medical College, Srinagar. This was a cross-sectional study wherein 3000 patients between the age Methods: group of 5-20 years attending the OPD of a tertiary care centre from august 2019 to august 2021 were taken into consideration. Proper birth history and family history was taken from these patients. Proper ophthalmological examination was done which included uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA). Ocular misalignment was diagnosed by cover uncover test and angle of deviation was measured by prism bar test. Out of 3000 patients, only 60 patients were found Results: to have strabismus with overall prevalence of strabismus in our study being 2%. In our study, 66.7% cases were girls and 33.3% cases were boys. Esotropia was most prevalent form of strabismus accounting for 60% of cases followed by exotropia accounting for 40% cases Our study indicated the prevalence of strabismus as 2%. Proper screening, early Conclusion: detection and adequate management of ocular misalignment can help in reducing the burden of strabismus in the population
RESUMEN
Purpose: To analyze the efficacy of fusional vergence therapy (FVT) in management of consecutive esotropia with diplopia after intermittent exotropia (IXT) surgery. The current study is carried on how FVT affects the duration of treatment, sensory fusion, and exotropic drift. Methods: This was a retrospective study for the medical record of 11 patients with consecutive esotropia after IXT surgery of 543 patients over the period of 5 year, with mean surgery age of 9.5 (range: 4–33 y). FVT was planned after minimum 6 weeks of surgery and was considered for maximum 24 weeks. Patients underwent a combination of office-based and home-based FVT. Successful outcome of therapy was considered where diplopia resolves in free space and achieves sensory fusion, stereopsis with no manifest deviation. Results: Record of 543 patients who had horizontal muscle surgery for IXT were identified and reviewed. Records of 11 patients who showed consecutive esotropia of 10 prism diopter (PD) or more with normal retinal correspondence, with or without diplopia complaint, after 6 week of surgery and had undergone vision therapy management were reviewed. A successful outcome of binocular single vision with good sensory and motor fusion with no manifest deviation or prism requirement was achieved with in the mean duration of 4.8 month of therapy. With a mean duration of 4 weeks of therapy, the mean angle of deviation reduced by 53% for distance (17 PD to 8 PD) and 27% for near (11 PD to 8 PD) and mean stereopsis improvement by 80% with 94% patients demonstrating sensory fusion on Bagolini test and 94% of patients having no symptoms of diplopia or squint. Conclusion: With nonsurgical management involving refractive error correction, FVT, and prism, consecutive esotropia was resolved in 74% cases. Management of consecutive esotropia with FVT can result in satisfactory sensory fusion and successful motor alignment.
RESUMEN
Purpose: To evaluate the surgical efficacy of reinforced plication of the medial rectus muscle to resection as an effective muscle strengthening procedure in exotropia. Methods: This is a prospective randomized trial in patients with exotropia who underwent complete orthoptic evaluation followed by random assignment into two groups by using a computer?drawn random number table. Group 1 patients underwent standard resection with recession procedure, and group 2 patients underwent reinforced plication with recession procedure. Follow?up was performed at day 1, 1 week, 1 month, 3 months, and 6 months to assess the surgical efficacy. Results: A total of 80 patients were included in the study of which 39 were in group 1 and 41 in group 2. The mean age in group 1 was 23.48 ± 11.94 years and 23.29 ± 10.02 years in group 2. The mean preoperative deviation in group 1 for distance was 50.13 ± 11.95 PD and 50.12 ± 9.79 PD in group 2 (P = 0.499). In group 1 with a mean surgical dose of 5.27 mm medial rectus resection and 8.04 mm lateral rectus recession, a 7.11 ± 3.95 PD deviation was noted at the end of 6 months. Similarly, in group 2 with a mean surgical dose of 5.16 mm medial rectus plication and 8.16 mm lateral rectus recession, a 6.00 ± 2.46 PD deviation was noted at the end of 6 months. Between groups, ocular surface changes, inter?surgeon comparison, and exotropia subtypes did not reveal any significant differences. Conclusion: In our observation, the reinforced medial rectus muscle plication showed clinically comparable results as compared to the standard resection procedure at the end of 6 months. Therefore, this innovative modification can be considered as an alternative to standard resection
RESUMEN
La exotropía sensorial se define como una desviación ocular divergente unilateral o bilateral, dada por anomalías oculares congénitas o adquiridas; es más frecuente en adultos. El objetivo de la cirugía de estrabismo en el adulto es restablecer la visión binocular, reduciendo la diplopía y al lograr el alineamiento ocular, mejorar su estética, por lo que antes de realizar la cirugía se debe tratar la causa que provoca la baja visión. El procedimiento quirúrgico de elección es la cirugía monocular, pero si la desviación es grande se realizará cirugía binocular. Se presenta una paciente femenino de 25 años de edad portadora de lentes de contacto por miopía elevada del ojo derecho (9,00 -0.75 x 105º con 0,2 de agudeza visual mejor corregida), exotropía de más de 25º por Hirschberg, limitación de aducción del ojo derecho y por método de oclusor y prismas a 6 metros sin cristales y con sus lentes de contacto, ambos ojos 50 ∆ b interna, no estereopsia y suprime ojo derecho. Por todas las ventajas que presenta la cirugía monocular, se decidió realizarla en el ojo derecho, se colocó anestesia local peribulbar, se realizó recesión amplia del recto lateral a 12 mm y se realizó 8 mm de resección del recto medial; en el postoperatorio se logró 10 ∆ b interna y por momentos ortotropia; refirió diplopía post quirúrgica que resolvió espontáneamente. Los resultados quirúrgicos en la exotropía sensorial son menos alentadores ya que con el tiempo pueden evolucionar hacia la hipercorrección o hacia la recurrencia(AU)
Sensory exotropía is defined as a unilateral or bilateral divergent ocular deviation, given by congenital or acquired ocular anomalies, and is more frequent in adults. The objective of the strabismus surgery in adults is to reestablish binocular vision, reduce diplopía, improve ocular alignment and enhance quality of life; before performing surgery the cause of low vision should be treated. The preferred surgical procedure is a monocular approach, but if there is a large deviation a binocular procedure should be performed. The case presented Is a 25 year-old female with high myopia of the right eye (-9.00 -0.75 x 105º with 0.2 of best corrected visual acuity), exotropía of more than 25º for Hirschberg, limitation of aducción of the right eye and with both the oclusor method and prisms to 6 meters without glasses and with her contact lenses, both eyes have 50∆ of internal base, no estereopsia and suppression of the right eye. For its advantages a monocular approach (of the right eye) was preferred, with peribulbar anesthesia: recession to 12mm of the lateral rectus combined with 8 mm of resection of the medial rectus; in the postoperative she presented a 10∆ intern base deviation and for moments ortotropia; she referred diplopia that solved spontaneously. The surgical results in sensory exotropía are less encouraging since they have higher hypercorrection and recurrence rates(AU)
Asunto(s)
Humanos , Femenino , Adulto , Procedimientos Quirúrgicos Operativos , Exotropía/etiología , Anomalías del Ojo , Estrabismo/cirugía , Calidad de Vida , RecurrenciaRESUMEN
Purpose: To assess the change in binocular summation (BiS) in comitant exotropia (XT) after strabismus surgery. Methods: This is a prospective study on 20 patients who underwent surgery for comitant XT over a one year period. Patients with sensory exotropia and nystagmus were excluded. Best?corrected visual acuity (VA) and contrast sensitivity (CS) of both eyes separately and together (binocularly) were recorded. BiS score was calculated as binocular score minus better eye score. BiS score at the end of 3 months was compared with the preoperative data. Results: The mean ± SD of BiS score increased from 2.95 ± 0.88 to 4.55 ± 0.68 (P?value < 0.0001) for VA (on ETDRS letters) and from 2.75 ± 0.44 to 4.5 ± 0.76 (P?value < 0.001 for CS (on Pelli–Robson chart) after surgery. Conclusion: There is significant improvement in BiS in XT after strabismus surgery. Authors recommend its inclusion in evaluation of functional outcome of XT surgery
RESUMEN
AIM: To compare the effectiveness of unilateral lateral rectus recession-medial rectus resection(RR))and lateral rectus recession-medial rectus plication(RP)in the treatment of exotropia. METHODS: Evidence-based medicine research. A systematic database search was conducted Medline, Embase, Web of Science, the Cochrane Register of Controlled Trials and so on from August 2011 to August 2021. Related studies meeting the inclusion criteria were included in our study. The main outcome measures were as follows: success rate and postoperative deviation. Mean difference(MD)and odds ratio(OR)with 95% confidence interval(CI)were statistical analyzed as measurement data and continuous variables statistics. RESULTS: A total of two randomized controlled studies and five retrospective studies were included. The Meta-analysis results showed that the success rate of surgery was similar for RP group compared with RR group(OR=0.65, 95%CI:0.39-1.07, P=0.09). There was no difference in the incidence of poor postoperative prognosis of the two groups(the undercorrection and overcorrection rates)(OR=1.59; 95%CI: 0.92-2.74, P=0.10; OR=4.43; 95%CI: 0.69-28.18, P=0.12). There were no significant differences in postoperative deviation and the amount of external oblique drift(MD=0.75, 95%CI: -0.27-1.76, P=0.15; MD=-0.34, 95%CI: -1.30-0.63, P=0.50). CONCLUSION: The success rate of RP and RR surgery is close to the incidence of poor postoperative prognosis, moreover, there was no significant difference between the deviation and the amount of external oblique drift after the two surgeries, RP is an effective surgical procedure for the treatment of exotropia.
RESUMEN
@#AIM: To investigate the effect of perioperative synoptophore scintillation training on postoperative restoration of binocular visual function in patients with constant exotropia.<p>METHODS: We retrospectively reviewed 68(136 eyes)patients with constant exotropia, who successfully underwent surgical ophthalmological treatment from January 2017 to March 2021. Patients were divided into group A(n=35 cases, 70 eyes)and group B(n=33 cases, 66 eyes)according to whether or not they received perioperative synoptophore scintillation training. Group A included 19 males(38 eyes)and 16 females(32 eyes)(mean age: 29.34±12.72 years). Group B included 13 males(26 eyes)and 20 females(40 eyes)(mean age: 30.12±8.75 years). One month postoperatively, the patients were examined with a synoptophore, and the restoration of simultaneous vision, fusion function, and stereoscopic function were compared between the two groups.<p>RESULTS: There were no significant differences in age, sex, and preoperative far and near deviations between the two groups(P>0.05). Postoperatively, the restoration rates of simultaneous vision, fusion function, and stereoacuity were 54%, 54%, and 43% in group A, respectively. And 27%, 27%, and 15% in group B, respectively. Statistically, there were respectively significant differences between the two groups(χ2=5.117, 5.117, 6.280; all P<0.05).<p>CONCLUSION: Perioperative synoptophore scintillation training can effectively improve the binocular vision function of adult patients and older children(>12 years)with constant exotropia without binocular vision function and enhance the therapeutic effect of surgery.