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Federico G Velez - One of the best experts on this subject based on the ideXlab platform.

  • Strabismus Surgery decreases the risk of injuries in pediatric patients in the optumlabs data warehouse
    American Journal of Ophthalmology, 2021
    Co-Authors: Stacy L Pineles, Michael X Repka, Federico G Velez, Claudia Perez, Danielle Sim, Anne L Coleman
    Abstract:

    PURPOSE Previous studies have shown an association between injury risk and Strabismus in Medicare-aged beneficiaries and children. The injury prevalence in strabismic children was 30% in a study of >10 million patients in the OptumLabs® Data Warehouse (OLDW). The purpose of this study was to determine whether Strabismus Surgery decreases the risk of injury. DESIGN Retrospective Cohort Study Methods: The OLDW is a de-identified, longitudinal health database which was queried for strabismic patients aged <19 years. The patients who underwent Strabismus Surgery were compared to those strabismic patients who did not undergo Surgery for injury. Injury risk (fractures, musculoskeletal injuries, head injuries) during their insurance enrollment was calculated in the non-surgical patients following their first Strabismus claim, and compared to the risk in surgical patients post-operatively. RESULTS There were 344,794 patients with Strabismus. Surgery was performed in 26,459 (7.7%). Esotropia was the most common diagnosis (n=181195, 52.6%) followed by exotropia (n=161712, 46.9%), and hypertropia (n=43831, 12.7%). Within these groups, patients with hypertropia were significantly more likely to undergo Surgery (24.2%) compared with patients with esotropia and exotropia (10.2% and 9.6%, respectively). Injuries were diagnosed after the first Strabismus claim in 94,960 (29.8%) non-surgical patients vs 5790 (21.9%) post-surgical patients (p<0.001) with a mean follow-up of 4.3±3.1 vs 3.8±3.1 years, respectively. The adjusted hazard ratio for injuries was 0.85 (95%CI:0.83-0.87) for the risk of any injury after Strabismus Surgery. The HR was significantly decreased following Surgery for each type of Strabismus: esotropia (0.91,95%CI:0.88-0.94), exotropia (0.82,95% CI:0.80-0.85) and hypertropia (0.89,95%CI:0.85-0.93). DISCUSSION Strabismus Surgery was associated with a 15% decrease in the risk of physical injury over about 4 years of follow up. Surgery may be a factor in decreasing injury risk in strabismic patients, particularly in exotropia. Given the large number of children with Strabismus in United States, further assessment of strategies such as Strabismus Surgery to reduce injuries in children with Strabismus is needed.

  • necrotizing tenon s capsule infection in a lymphopenic down syndrome patient following Strabismus Surgery
    Journal of Aapos, 2017
    Co-Authors: Melinda Y Chang, Wenjing Liu, Ben J Glasgow, Sherwin J Isenberg, Federico G Velez
    Abstract:

    Periocular infection is a rare complication of Strabismus Surgery. We describe a case of necrotizing Tenon's capsule infection after uncomplicated Strabismus Surgery in a boy with Down syndrome and blepharitis. Pathologic diagnosis was severe acute necrotizing inflammation with Gram positive coccal forms. Resolution of infection occurred after surgical debridement and intravenous and topical antibiotics. Work-up revealed lymphopenia related to Down syndrome. Patients with Down syndrome may have risk factors for postoperative infection including blepharitis and immunologic abnormalities.

  • decreased binocular summation in strabismic amblyopes and effect of Strabismus Surgery
    Strabismus, 2017
    Co-Authors: Melinda Y Chang, Sherwin J Isenberg, Federico G Velez, Joseph L Demer, Stacy L Pineles
    Abstract:

    ABSTRACTPurpose: Binocular summation (BiS) occurs when binocular visual function surpasses that of the better eye alone. We sought to evaluate whether strabismic amblyopia reduces BiS more than Strabismus alone, and determine whether BiS improves in strabismic amblyopes after Strabismus Surgery. Methods: We prospectively recruited 15 patients with strabismic amblyopia who then underwent Strabismus Surgery. Thirty age-matched normal subjects and 30 non-amblyopic strabismic patients served as controls. Subjects underwent binocular and monocular visual acuity testing on high-contrast Early Treatment Diabetic Retinopathy Study (ETDRS) as well as 2.5% and 1.25% Sloan low contrast acuity (LCA) charts. BiS was calculated as the difference between better eye and binocular scores. Results: Strabismic amblyopes and strabismic controls did not significantly differ in preoperative BiS, but both had subnormal BiS preoperatively on LCA charts. Among 11 strabismic amblyopes with preoperative and postoperative BiS measur...

  • Strabismus Surgery in patients with ocular neuromyotonia potential unmasking of the condition and effective management tool
    Journal of Neuro-ophthalmology, 2016
    Co-Authors: Anna J Kim, Federico G Velez, Stacy L Pineles
    Abstract:

    BACKGROUND Ocular neuromyotonia (ONM) is a rare motility disorder in which paroxysms of tonic extraocular muscle contraction from abnormal ocular motor nerve firing result in episodic diplopia and Strabismus. Medical therapy with membrane-stabilizing agents has varied success. A surgical approach to treatment has not yet been described. We report the outcomes of Strabismus Surgery in patients with ONM. METHODS We describe 3 patients with sixth nerve paresis and ONM of the affected lateral rectus muscle who underwent Strabismus Surgery. All patients had a history of radiation therapy for intracranial tumors. Ophthalmologic and orthoptic examinations were performed with appropriate medical and neuroradiologic evaluation. Preoperative and postoperative data are presented and analyzed. RESULTS Two patients were noted to have ONM after their first Strabismus Surgery for a sixth nerve palsy. Patients 1 and 2 had 3 surgeries, whereas Patient 3 had 1 operation. Extraocular muscles operated on included the medial rectus and lateral rectus. Preoperative primary gaze baseline esotropia ranged from 35 to 75 prism diopters (Δ). All patients achieved improvement in ocular alignment and motility. Postoperative primary gaze deviations ranged from orthotropia to 20Δ of esotropia. Abduction deficits were unchanged or improved. The follow-up period ranged from 15 months to 2 years. CONCLUSIONS Patients with ONM of a paretic rectus muscle can achieve binocular fusion with Strabismus Surgery. ONM may manifest postoperatively in patients with a sixth nerve palsy and a contractured medial rectus who, preoperatively, were not noted to have ONM.

  • relationship between binocular summation and stereoacuity after Strabismus Surgery
    Journal of Aapos, 2016
    Co-Authors: Jaffer M Kattan, Federico G Velez, Joseph L Demer, Stacy L Pineles
    Abstract:

    Purpose To describe the relationship between binocular summation and stereoacuity after Strabismus Surgery. Design Prospective case series. Methods setting: Stein Eye Institute, University of California Los Angeles. patient population: Pediatric strabismic patients who underwent Strabismus Surgery between 2010 and 2015. observation procedures: Early Treatment Diabetic Retinopathy Study visual acuity, Sloan low-contrast acuity (LCA, 2.5% and 1.25%), and Randot stereoacuity 2 months following surgical correction of Strabismus. main outcome measures: The relationship between binocular summation (BiS), calculated as the difference between the binocular visual acuity score and that of the better eye, and stereoacuity. Results A total of 130 postoperative strabismic patients were studied. The relationship between binocular summation and stereoacuity was studied by Spearman correlation. There were significant correlations between BiS for 2.5% LCA with near and distance stereoacuity ( P  = .006 and P  = .009). BiS for 1.25% LCA was also significantly correlated with near stereoacuity ( P  = .04). Near stereoacuity and BiS for 2.5% and 1.25% LCA were significantly dependent (Pearson χ 2 , P  = .006 and P  = .026). Patients with stereoacuity demonstrated significantly more BiS in 2.5% LCA of 2.7 ( P  = .022) and 3.1 ( P  = .014) letters than did those without near or distance stereoacuity, respectively. Conclusions These findings demonstrate that stereopsis and binocular summation are significantly correlated in patients who have undergone surgical correction of Strabismus.

Stacy L Pineles - One of the best experts on this subject based on the ideXlab platform.

  • Strabismus Surgery decreases the risk of injuries in pediatric patients in the optumlabs data warehouse
    American Journal of Ophthalmology, 2021
    Co-Authors: Stacy L Pineles, Michael X Repka, Federico G Velez, Claudia Perez, Danielle Sim, Anne L Coleman
    Abstract:

    PURPOSE Previous studies have shown an association between injury risk and Strabismus in Medicare-aged beneficiaries and children. The injury prevalence in strabismic children was 30% in a study of >10 million patients in the OptumLabs® Data Warehouse (OLDW). The purpose of this study was to determine whether Strabismus Surgery decreases the risk of injury. DESIGN Retrospective Cohort Study Methods: The OLDW is a de-identified, longitudinal health database which was queried for strabismic patients aged <19 years. The patients who underwent Strabismus Surgery were compared to those strabismic patients who did not undergo Surgery for injury. Injury risk (fractures, musculoskeletal injuries, head injuries) during their insurance enrollment was calculated in the non-surgical patients following their first Strabismus claim, and compared to the risk in surgical patients post-operatively. RESULTS There were 344,794 patients with Strabismus. Surgery was performed in 26,459 (7.7%). Esotropia was the most common diagnosis (n=181195, 52.6%) followed by exotropia (n=161712, 46.9%), and hypertropia (n=43831, 12.7%). Within these groups, patients with hypertropia were significantly more likely to undergo Surgery (24.2%) compared with patients with esotropia and exotropia (10.2% and 9.6%, respectively). Injuries were diagnosed after the first Strabismus claim in 94,960 (29.8%) non-surgical patients vs 5790 (21.9%) post-surgical patients (p<0.001) with a mean follow-up of 4.3±3.1 vs 3.8±3.1 years, respectively. The adjusted hazard ratio for injuries was 0.85 (95%CI:0.83-0.87) for the risk of any injury after Strabismus Surgery. The HR was significantly decreased following Surgery for each type of Strabismus: esotropia (0.91,95%CI:0.88-0.94), exotropia (0.82,95% CI:0.80-0.85) and hypertropia (0.89,95%CI:0.85-0.93). DISCUSSION Strabismus Surgery was associated with a 15% decrease in the risk of physical injury over about 4 years of follow up. Surgery may be a factor in decreasing injury risk in strabismic patients, particularly in exotropia. Given the large number of children with Strabismus in United States, further assessment of strategies such as Strabismus Surgery to reduce injuries in children with Strabismus is needed.

  • decreased binocular summation in strabismic amblyopes and effect of Strabismus Surgery
    Strabismus, 2017
    Co-Authors: Melinda Y Chang, Sherwin J Isenberg, Federico G Velez, Joseph L Demer, Stacy L Pineles
    Abstract:

    ABSTRACTPurpose: Binocular summation (BiS) occurs when binocular visual function surpasses that of the better eye alone. We sought to evaluate whether strabismic amblyopia reduces BiS more than Strabismus alone, and determine whether BiS improves in strabismic amblyopes after Strabismus Surgery. Methods: We prospectively recruited 15 patients with strabismic amblyopia who then underwent Strabismus Surgery. Thirty age-matched normal subjects and 30 non-amblyopic strabismic patients served as controls. Subjects underwent binocular and monocular visual acuity testing on high-contrast Early Treatment Diabetic Retinopathy Study (ETDRS) as well as 2.5% and 1.25% Sloan low contrast acuity (LCA) charts. BiS was calculated as the difference between better eye and binocular scores. Results: Strabismic amblyopes and strabismic controls did not significantly differ in preoperative BiS, but both had subnormal BiS preoperatively on LCA charts. Among 11 strabismic amblyopes with preoperative and postoperative BiS measur...

  • Strabismus Surgery in patients with ocular neuromyotonia potential unmasking of the condition and effective management tool
    Journal of Neuro-ophthalmology, 2016
    Co-Authors: Anna J Kim, Federico G Velez, Stacy L Pineles
    Abstract:

    BACKGROUND Ocular neuromyotonia (ONM) is a rare motility disorder in which paroxysms of tonic extraocular muscle contraction from abnormal ocular motor nerve firing result in episodic diplopia and Strabismus. Medical therapy with membrane-stabilizing agents has varied success. A surgical approach to treatment has not yet been described. We report the outcomes of Strabismus Surgery in patients with ONM. METHODS We describe 3 patients with sixth nerve paresis and ONM of the affected lateral rectus muscle who underwent Strabismus Surgery. All patients had a history of radiation therapy for intracranial tumors. Ophthalmologic and orthoptic examinations were performed with appropriate medical and neuroradiologic evaluation. Preoperative and postoperative data are presented and analyzed. RESULTS Two patients were noted to have ONM after their first Strabismus Surgery for a sixth nerve palsy. Patients 1 and 2 had 3 surgeries, whereas Patient 3 had 1 operation. Extraocular muscles operated on included the medial rectus and lateral rectus. Preoperative primary gaze baseline esotropia ranged from 35 to 75 prism diopters (Δ). All patients achieved improvement in ocular alignment and motility. Postoperative primary gaze deviations ranged from orthotropia to 20Δ of esotropia. Abduction deficits were unchanged or improved. The follow-up period ranged from 15 months to 2 years. CONCLUSIONS Patients with ONM of a paretic rectus muscle can achieve binocular fusion with Strabismus Surgery. ONM may manifest postoperatively in patients with a sixth nerve palsy and a contractured medial rectus who, preoperatively, were not noted to have ONM.

  • relationship between binocular summation and stereoacuity after Strabismus Surgery
    Journal of Aapos, 2016
    Co-Authors: Jaffer M Kattan, Federico G Velez, Joseph L Demer, Stacy L Pineles
    Abstract:

    Purpose To describe the relationship between binocular summation and stereoacuity after Strabismus Surgery. Design Prospective case series. Methods setting: Stein Eye Institute, University of California Los Angeles. patient population: Pediatric strabismic patients who underwent Strabismus Surgery between 2010 and 2015. observation procedures: Early Treatment Diabetic Retinopathy Study visual acuity, Sloan low-contrast acuity (LCA, 2.5% and 1.25%), and Randot stereoacuity 2 months following surgical correction of Strabismus. main outcome measures: The relationship between binocular summation (BiS), calculated as the difference between the binocular visual acuity score and that of the better eye, and stereoacuity. Results A total of 130 postoperative strabismic patients were studied. The relationship between binocular summation and stereoacuity was studied by Spearman correlation. There were significant correlations between BiS for 2.5% LCA with near and distance stereoacuity ( P  = .006 and P  = .009). BiS for 1.25% LCA was also significantly correlated with near stereoacuity ( P  = .04). Near stereoacuity and BiS for 2.5% and 1.25% LCA were significantly dependent (Pearson χ 2 , P  = .006 and P  = .026). Patients with stereoacuity demonstrated significantly more BiS in 2.5% LCA of 2.7 ( P  = .022) and 3.1 ( P  = .014) letters than did those without near or distance stereoacuity, respectively. Conclusions These findings demonstrate that stereopsis and binocular summation are significantly correlated in patients who have undergone surgical correction of Strabismus.

  • a modified technique for Strabismus Surgery in the presence of a scleral buckle
    Journal of Aapos, 2015
    Co-Authors: Anna Kim, Melinda Y Chang, Federico G Velez, Stacy L Pineles, Mitra Nejad
    Abstract:

    We describe a surgical technique to perform Strabismus Surgery in patients with a scleral buckle that allows for the use of adjustable sutures without removing or modifying the exoplant.

Sherwin J Isenberg - One of the best experts on this subject based on the ideXlab platform.

  • necrotizing tenon s capsule infection in a lymphopenic down syndrome patient following Strabismus Surgery
    Journal of Aapos, 2017
    Co-Authors: Melinda Y Chang, Wenjing Liu, Ben J Glasgow, Sherwin J Isenberg, Federico G Velez
    Abstract:

    Periocular infection is a rare complication of Strabismus Surgery. We describe a case of necrotizing Tenon's capsule infection after uncomplicated Strabismus Surgery in a boy with Down syndrome and blepharitis. Pathologic diagnosis was severe acute necrotizing inflammation with Gram positive coccal forms. Resolution of infection occurred after surgical debridement and intravenous and topical antibiotics. Work-up revealed lymphopenia related to Down syndrome. Patients with Down syndrome may have risk factors for postoperative infection including blepharitis and immunologic abnormalities.

  • decreased binocular summation in strabismic amblyopes and effect of Strabismus Surgery
    Strabismus, 2017
    Co-Authors: Melinda Y Chang, Sherwin J Isenberg, Federico G Velez, Joseph L Demer, Stacy L Pineles
    Abstract:

    ABSTRACTPurpose: Binocular summation (BiS) occurs when binocular visual function surpasses that of the better eye alone. We sought to evaluate whether strabismic amblyopia reduces BiS more than Strabismus alone, and determine whether BiS improves in strabismic amblyopes after Strabismus Surgery. Methods: We prospectively recruited 15 patients with strabismic amblyopia who then underwent Strabismus Surgery. Thirty age-matched normal subjects and 30 non-amblyopic strabismic patients served as controls. Subjects underwent binocular and monocular visual acuity testing on high-contrast Early Treatment Diabetic Retinopathy Study (ETDRS) as well as 2.5% and 1.25% Sloan low contrast acuity (LCA) charts. BiS was calculated as the difference between better eye and binocular scores. Results: Strabismic amblyopes and strabismic controls did not significantly differ in preoperative BiS, but both had subnormal BiS preoperatively on LCA charts. Among 11 strabismic amblyopes with preoperative and postoperative BiS measur...

  • improvement in binocular summation after Strabismus Surgery
    JAMA Ophthalmology, 2015
    Co-Authors: Stacy L Pineles, Sherwin J Isenberg, Joseph L Demer, Eileen E Birch, Federico G Velez
    Abstract:

    Importance Binocular summation (BiS), or improvement in visual acuity using binocular vision compared with the better eye alone, is diminished in patients with Strabismus. However, it is still not known how Strabismus Surgery affects BiS. Objective To determine whether BiS improves after Strabismus Surgery. Design, Setting, and Participants Prospective study of 97 patients undergoing Strabismus Surgery between September 1, 2011, and January 31, 2014, comparing preoperative and postoperative measures of BiS. Patients were recruited within 1 month before undergoing Strabismus Surgery. The study took place at an academic pediatric ophthalmology and Strabismus practice. Intervention Strabismus Surgery. Main Outcomes and Measures All patients underwent high- and low-contrast visual acuity testing binocularly and monocularly at preoperative and 2-month postoperative visits. Binocular summation was calculated for high-contrast Early Treatment of Diabetic Retinopathy Study charts and Sloan low-contrast acuity charts at 2.5% and 1.25% contrast as the difference between the binocular score and that of the better eye. Preoperative and postoperative values were compared. Results There was an improvement in BiS at the 2 low-contrast levels for all patients and for all contrast levels in the 75 patients in whom Surgery successfully restored binocular alignment. For low-contrast acuity, the proportion of patients with a BiS score of at least 5 letters postoperatively was almost twice that of preoperatively (21% to 30% and 13% to 26% for 2.5% contrast and 1.25% contrast, respectively). Similarly, the proportion of patients with binocular inhibition (BiS score worse by at least 5 letters than the better eye score) was decreased postoperatively at all contrast levels (from 22% to 14% for 1.25% contrast). Thirty-one percent of patients experienced improvement in BiS scores postoperatively at the lowest contrast level. Conclusions and Relevance Binocular summation scores improved postoperatively in most patients undergoing Strabismus Surgery. This occurred most frequently at the lowest contrast level. These findings suggest that improved BiS could represent a newly recognized functional benefit from the surgical correction of Strabismus. Further studies evaluating the correlation of BiS with stereopsis, visual field expansion, and quality of life will be necessary to fully evaluate the role that improved BiS has in improving binocularity postoperatively.

  • drift of ocular alignment following Strabismus Surgery part 1 using fixed scleral sutures
    British Journal of Ophthalmology, 2009
    Co-Authors: Parnchat Pukrushpan, Sherwin J Isenberg
    Abstract:

    Aims : To evaluate the postoperative alignment drift following traditional Strabismus Surgery utilizing direct attachment of muscle to sclera. Methods : The ocular alignment drift (change from the first postoperative week) of 106 patients who underwent scleral fixation Strabismus Surgery at age 0.5 to 35 years with 5 years maximal follow-up was analyzed. Results : There was a mean undercorrection drift of 4.6 + 8.9 PD at distance fixation (p=0.025) and 3.4 + 7.6 PD at near (p=0.053) for all subjects, and 11.3 + 8.6 PD distance (p=0.008) and 10.6 + 6.0 PD near (p=0.016) for exotropic patients. Recession Surgery produced an undercorrection drift of 5.3 + 8.8 PD (p=0.021) at distance fixation. Esotropic patients and those undergoing unilateral recession/resection Surgery had no significant drift. Patients overcorrected at the one week postoperative visit later developed an undercorrection drift at distance (10.3 + 7.9 PD, p=0.002) and near fixation (5.5 + 9.2 PD at 36 months, p=0.041), while undercorrected patients showed no significant drift and largely stayed undercorrected. Conclusion : Fixed scleral-suture Strabismus Surgery generally produces a postoperative undercorrection drift, especially following recession Surgery, exotropia or overcorrection at the first postoperative week.

  • drift of ocular alignment following Strabismus Surgery part 2 using adjustable sutures
    British Journal of Ophthalmology, 2009
    Co-Authors: Sherwin J Isenberg, Payum Abdarbashi
    Abstract:

    Aim: To measure the drift of ocular alignment following Strabismus Surgery utilising adjustable sutures. Methods: 106 patients, aged 12 to 84 years, underwent adjustable suture Strabismus Surgery with a follow-up of 0.5–4 years (mean 24.3 months). Results: For all subjects measured on distant fixation, there was a mean undercorrection drift of 8.3 (SD 2.3) prism dioptres (PD) from week 1 to 48 months postoperatively (p = 0.005). Patients with exotropia demonstrated an undercorrection drift on distant fixation from week 1 to 2 years (mean 10.1 (3.5) PD, p = 0.023). Patients who underwent recession Surgery developed a mean 9.1 (3.3) PD undercorrection drift from week 1 to 3 years (p = 0.031). Patients who had unilateral recession and resection Surgery showed a mean 6.8 (2.9) PD undercorrection drift from week 1 to 18 months (p = 0.049). Patients with constant or intermittent postoperative stereopsis had a statistically significant undercorrection drift (⩽5.1 PD) at certain postoperative periods (p Conclusion: Most patients developed a general drift toward undercorrection, especially following recession or recession with resection Surgery and those with exotropia. Surgeons should consider creating a mild overcorrection at the time of suture adjustment, while avoiding long-term diplopia.

Akitaka Tsujikawa - One of the best experts on this subject based on the ideXlab platform.

  • one year outcome predictors of Strabismus Surgery from anterior segment optical coherence tomography with multiple b scan averaging
    Scientific Reports, 2019
    Co-Authors: Manabu Miyata, Hiroshi Ohtsuki, Kenji Suda, Akihito Uji, Masayuki Hata, Akio Oishi, Eri Nakano, Akinari Yamamoto, Shinya Nakao, Akitaka Tsujikawa
    Abstract:

    Strabismologists are eager to identify preoperative or intraoperative Strabismus Surgery outcome predictors because of the variable effects in each patient. Conjunctival closure position recession after rectus muscle recession is effective for correcting large angle Strabismus. The elasticity of the conjunctiva and Tenon's capsule is important for Strabismus Surgery management. In this longitudinal study, we evaluated the prognosis of conjunctiva and Tenon's capsule thickness (CTT) near the limbus 1 year after Strabismus Surgery with a limbal conjunctival incision using swept-source anterior segment optical coherence tomography with multiple B-scan averaging. Also, we identified preoperative and/or intraoperative parameters associated with corrective effects 1 year after Surgery in 15 consecutive treatment-naive patients with exotropia or esotropia who underwent recession and resection. The 1-year CTT was greater than the preoperative CTT on the resection side (269 ± 111 vs 183 ± 53 μm, P < 0.001) but was smaller on the recession side (137 ± 54 vs 183 ± 71 μm, P = 0.02). The corrective effect of Surgery (1.6 ± 0.3°/mm) was most strongly correlated with preoperative CTT on the recession side (P = 0.005, β = -0.73). Hence, CTT on the recession side may provide adjunctive information for Strabismus treatment.

  • One-Year Outcome Predictors of Strabismus Surgery from Anterior Segment Optical Coherence Tomography with Multiple B-Scan Averaging
    Nature Publishing Group, 2019
    Co-Authors: Manabu Miyata, Hiroshi Ohtsuki, Kenji Suda, Akihito Uji, Masayuki Hata, Akio Oishi, Eri Nakano, Akinari Yamamoto, Shinya Nakao, Akitaka Tsujikawa
    Abstract:

    Abstract Strabismologists are eager to identify preoperative or intraoperative Strabismus Surgery outcome predictors because of the variable effects in each patient. Conjunctival closure position recession after rectus muscle recession is effective for correcting large angle Strabismus. The elasticity of the conjunctiva and Tenon’s capsule is important for Strabismus Surgery management. In this longitudinal study, we evaluated the prognosis of conjunctiva and Tenon’s capsule thickness (CTT) near the limbus 1 year after Strabismus Surgery with a limbal conjunctival incision using swept-source anterior segment optical coherence tomography with multiple B-scan averaging. Also, we identified preoperative and/or intraoperative parameters associated with corrective effects 1 year after Surgery in 15 consecutive treatment-naïve patients with exotropia or esotropia who underwent recession and resection. The 1-year CTT was greater than the preoperative CTT on the resection side (269 ± 111 vs 183 ± 53 μm, P 

Manabu Miyata - One of the best experts on this subject based on the ideXlab platform.

  • one year outcome predictors of Strabismus Surgery from anterior segment optical coherence tomography with multiple b scan averaging
    Scientific Reports, 2019
    Co-Authors: Manabu Miyata, Hiroshi Ohtsuki, Kenji Suda, Akihito Uji, Masayuki Hata, Akio Oishi, Eri Nakano, Akinari Yamamoto, Shinya Nakao, Akitaka Tsujikawa
    Abstract:

    Strabismologists are eager to identify preoperative or intraoperative Strabismus Surgery outcome predictors because of the variable effects in each patient. Conjunctival closure position recession after rectus muscle recession is effective for correcting large angle Strabismus. The elasticity of the conjunctiva and Tenon's capsule is important for Strabismus Surgery management. In this longitudinal study, we evaluated the prognosis of conjunctiva and Tenon's capsule thickness (CTT) near the limbus 1 year after Strabismus Surgery with a limbal conjunctival incision using swept-source anterior segment optical coherence tomography with multiple B-scan averaging. Also, we identified preoperative and/or intraoperative parameters associated with corrective effects 1 year after Surgery in 15 consecutive treatment-naive patients with exotropia or esotropia who underwent recession and resection. The 1-year CTT was greater than the preoperative CTT on the resection side (269 ± 111 vs 183 ± 53 μm, P < 0.001) but was smaller on the recession side (137 ± 54 vs 183 ± 71 μm, P = 0.02). The corrective effect of Surgery (1.6 ± 0.3°/mm) was most strongly correlated with preoperative CTT on the recession side (P = 0.005, β = -0.73). Hence, CTT on the recession side may provide adjunctive information for Strabismus treatment.

  • One-Year Outcome Predictors of Strabismus Surgery from Anterior Segment Optical Coherence Tomography with Multiple B-Scan Averaging
    Nature Publishing Group, 2019
    Co-Authors: Manabu Miyata, Hiroshi Ohtsuki, Kenji Suda, Akihito Uji, Masayuki Hata, Akio Oishi, Eri Nakano, Akinari Yamamoto, Shinya Nakao, Akitaka Tsujikawa
    Abstract:

    Abstract Strabismologists are eager to identify preoperative or intraoperative Strabismus Surgery outcome predictors because of the variable effects in each patient. Conjunctival closure position recession after rectus muscle recession is effective for correcting large angle Strabismus. The elasticity of the conjunctiva and Tenon’s capsule is important for Strabismus Surgery management. In this longitudinal study, we evaluated the prognosis of conjunctiva and Tenon’s capsule thickness (CTT) near the limbus 1 year after Strabismus Surgery with a limbal conjunctival incision using swept-source anterior segment optical coherence tomography with multiple B-scan averaging. Also, we identified preoperative and/or intraoperative parameters associated with corrective effects 1 year after Surgery in 15 consecutive treatment-naïve patients with exotropia or esotropia who underwent recession and resection. The 1-year CTT was greater than the preoperative CTT on the resection side (269 ± 111 vs 183 ± 53 μm, P