Effect of orbital decompression on choroidal thickness in patients with thyroid associated ophthalmopathy / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To investigate the effect of orbital decompression on the central macular choroidal thickness(CMCT)in patients with thyroid-associated ophthalmopathy(TAO).METHOD: Prospective clinical studies. A total of 29 TAO patients(42 eyes)treated in our department from January 2021 to January 2022 were analyzed, and they were divided into 20 cases(30 eyes)in the moderate and severe group and 9 cases(12 eyes)in the extremely severe group. Both groups of patients received orbital decompression, and the changes of CMCT, visual acuity, intraocular pressure, exophthalmos, and clinical activity score(CAS)at 3 and 6mo before and after surgery were compared between the two groups.RESULTS: All patients completed follow-up. The CMCT, exophthalmos, intraocular pressure, and CAS of the extremely severe group at 3 and 6mo were 355.13±15.59 and 339.61±13.17μm, 19.33±2.23 and 17.83±1.70mm, 18.86±3.05 and 18.09±1.37mmHg, 3.75±0.87 and 2.42±1.00 points, respectively. The moderate and severe group was 325.00±10.48 and 321.04±11.34μm, 16.07±1.74 and 15.6±1.98mm, 16.65±2.04 and 16.03±2.3mmHg, 1.50±0.51 and 1.43±0.50 points, and there was differences with those before operation(extremely severe group: 396.46±17.61μm, 22.00±2.3mm, 21.85±2.82mmHg, 5.33±1.44 points; moderate and severe group: 335.77±11.60μm, 19.07±1.84mm, 18.89±3.06mmHg, 1.63±0.49 points; all P<0.001). The best corrected visual acuity(LogMAR)before surgery was 0.64±0.22 in the extremely severe group, and 0.43±0.20 and 0.34±0.15 at 3 and 6mo after operation, respectively, which were different from those before surgery(all P<0.001)CONCLUSION: Orbital decompression can effectively reduce CMCT, intraocular pressure and exophthalmos in TAO patients, relieve orbital vein stasis, and effectively improve vision and reduce mobility in patients with extremely severe disease.

Adjunctive Middle Turbinectomy for Endoscopic Medial Orbital Wall - Thyroid Eye Disease Decompression

Abstract Introduction Middle turbinate resection (MTR) is commonly performed during endonasal endoscopic sinus and skull base surgery. Objective The purpose of this study was to characterize the additional orbital soft-tissue volume expansion during endoscopic medial orbital wall decompression with adjunctive MTR. Methods A retrospective review of patients who underwent endoscopic medial wall decompression with MTR was performed. The imaging software AW (GE Healthcare, Chicago, IL, USA) was used to overlay pre and postoperative orbital computed tomography (CT) images to visualize the preoperative position of the middle turbinate and the postoperative orbital soft tissue in the ethmoid bed. The imaging software Vitrea (Vital Images Inc., Minnetonka, MN, USA) was used to manually segment postoperative scans to determine the volume of orbital tissue which had filled the space previously occupied by the middle turbinate or medial to it. Results Nine orbits from 5 patients were included in this study; all patients were female with a history of hyperthyroidism. The average age was 55.6 years (range 32- 74). Of the 9 orbits, 7 (78%) had orbital soft tissue within the space of the resected middle turbinate postoperatively. The average volume of orbital tissue within or medial to this space was 0.83 +/- 0.67 cc. No patients had any postoperative complications. Conclusions In this patient cohort, adjunctive middle turbinate resection for endoscopic medial orbital wall decompression added ~ 0.83 cc of volume for orbital soft tissue after medial wall decompression. Middle turbinate resection is a useful adjunct to the orbital surgeon's armamentarium to augment the results of a medial orbital decompression for select patients.

Características de orbitopatía asociada al tiroides y tasa de requerimiento de cirugía / Thyroid-associated orbitopathy characteristics and surgery requirement rate

RESUMO Objetivo: Conheça as características demográficas e clínicas da Órbita Associada da Tiroide (OAT), bem como a taxa de exigência da cirurgia orbital em pacientes do Centro Médico Nacional do Oeste. Métodos. Estudo observacional, transversal, descritivo e retrospetivo realizado analisando os registos de pacientes diagnosticados com OAT tratados num centro de cuidados de terceiro nível de janeiro de 2005 a julho de 2016. Os resultados. Um total de 236 órbitas de 118 pacientes foram avaliados, com uma idade média de 47,3 (13,2 anos, 74,6% eram do sexo feminino e 25,4% masculinos. 4,2% dos doentes foram tratados com hipotiroidismo, 94,1% com hipertireoidismo e 1,7% com goiter tóxico difuso. 44,9% dos doentes estudados com restrição de movimento ocular,10,2% com queratopatia de exposição e 51,7% com hipertensão intraocular. 34,7% dos doentes avaliados no serviço necessitaram de descompressão orbital, 16,1% de cirurgia palpebral e 8,5% de correção do hatrabisma. Na gestão conservadora destes doentes, 48,3% exigiam o uso de lubrificantes tópicos dos olhos, enquanto 52,5% dos pacientes necessitavam do uso de hipotensivos oculares em número variável. As conclusões. A OAT foi associada principalmente ao hipertiroidismo, sendo mais comum em pacientes do sexo feminino entre os 40 e os 59 anos; mais de 50% dos pacientes necessitaram do uso de hipotensivos oculares. Da mesma forma, a gestão cirúrgica foi realizada em mais de 50% dos pacientes, sendo a descompressão orbital a intervenção mais frequente.

ABSTRACT Objective. To know the demographic and clinical characteristics of Thyroid Associated Orbitopathy (TAO), as well as the requirement rate of orbital surgery in patients of the Orbit Service in the National Medical Center of the West, IMSS. Methods. Observational, cross-cutting, descriptive and retrospective study carried out analyzing the records of patients diagnosed with TAO and treated at a third-level care center from January 2005 to July 2016. Results. A total of 236 orbits of 118 patients were valued, with an average age of 47.3 ± 13.2 years, 74.6% were female and 25.4% male. 4.2% of patients were treated with hypothyroidism, 94.1% with hyperthyroidism and 1.7% with diffuse toxic goiter. 44.9% of patients studied had eye movement restriction,10.2% exposure keratopathy and 51.7% intraocular hypertension. 34.7% of patients valued in the service required orbital decompression, 16.1% palpebral surgery and 8.5% strabism correction. In the conservative management of these patients 48.3% required the use of topical eye lubricants, while 52.5% required the use of eye hypotensives in variable numbers. Conclusions. TAO was mainly associated with hyperthyroidism, being more common in female patients between the age of 40 and 59; more than 50% of patients required the use of eye hypotensives. Likewise, surgical management was performed in more than 50% of patients, with orbital decompression being the most frequent intervention.

Research progress in the selection of surgical methods and complications of orbital decompression in the treatment of Graves ophthalmopathy / 国际眼科杂志(Guoji Yanke Zazhi)

@#Graves ophthalmopathy(GO)is the most common and relatively complicated orbital diseases, and the incidence rate is increasing year by year. Severe GO may present with exposure keratopathy, diplopia and compressive optic neuropathy, which seriously affects influences patients quality of life. At present, orbital decompression is an effective method in the treatment of moderate and severe GO, and with the continuous expansion of indications for orbital decompression, more and more patients with mild and moderate GO with exophthalmos require surgical treatment to improve the appearance. There are many different surgical techniques for orbital decompression, and which one can achieve patients' maximum benefit is a frequently encountered clinical problem for ophthalmologist. With the gradual increase of the amount of surgery, complications become increasingly prominent, which affect postoperative satisfaction of patients. In order to deepen the understanding of complications, avoid or reduce the occurrence of complications, and optimize the operation plan, this paper reviews the relevant literature at home and abroad in recent years, and summarizes the selection of operation methods and operation related complications of orbital decompression in GO patients.

Deep lateral wall combined with medial wall orbital decompression for thyroid associated ophthalmopathy / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM: To explore the clinical effect and safety of deep lateral wall combined with medial wall orbital decompression in the treatment of thyroid associated ophthalmopathy(TAO).<p>METHODS: Totally 17 patients with TAO in our department from January 2019 to May 2020 were included. All patients underwent deep lateral wall combined with medial wall orbital decompression under general anesthesia, the visual acuity, recovery of exposure keratitis, exophthalmos, intraocular pressure and complications were compared before and after operation.<p>RESULTS: Eight patients(9 eyes)with TAO and dysthyroid optic neuropathy(DON)were included in the study. The best corrected visual acuity averaged 0.78±0.15 preoperatively and 0.36±0.12 1mo postoperatively, which was statistically significant(<i>P</i><0.01)compared with the preoperative visual acuity, 0.38±0.12 at 6mo after surgery, which was not statistically different from that at 1mo after surgery(<i>P</i>=0.594). The mean preoperative proptosis was 23.75±2.55mm and the mean postoperative proptosis was 14.85±1.53mm at 1mo, which was statistically significant compared with the preoperative proptosis(<i>P</i><0.01), proptosis was on average 14.60±1.64mm at 6mo after surgery and remained generally stable(<i>P</i>=0.658)from 1mo before surgery. The intraocular pressure of the patients was 25.56±3.23mmHg preoperatively and 18.42±2.35mmHg 1mo postoperatively, which was statistically significant compared with the preoperative value(<i>P</i><0.01), and the intraocular pressure of the patients was reduced to 15.82±2.57mmHg at the 6mo postoperative follow-up, which was statistically significant compared with the intraocular pressure of the patients 1mo postoperatively(<i>P</i><0.01). There were 6 eyes of 6 patients with exposure keratitis preoperatively, 4 eyes improved and 2 eyes were cured in the 1mo postoperative, and all 6 eyes were cured 6mo postoperatively. Postoperatively, the diplopia of the patients all decreased to various degrees, and there were some patients whose diplopia symptoms continued to improve 6mo thereafter without other serious complications.<p>CONCLUSION: Deep lateral wall combined with medial wall orbital decompression can effectively improve the proptosis and also have a good effect on severe complications such as DON and exposure keratitis with few complications, so deep lateral wall combined with medial wall orbital decompression is an effective surgical procedure in the treatment of severe TAO.

Computer-assisted navigation in orbitofacial surgery

The purpose of this systematic review is to investigate the most common indications, treatment, and outcomes of computer-assisted surgery (CAS) in ophthalmological practice. CAS has evolved over the years from a neurosurgical tool to maxillofacial as well as an instrument to orbitofacial surgeries. A detailed and organized scrutiny in relevant electronic databases, journals, and bibliographies of the cited articles was carried out. Clinical studies with a minimum of two study cases were included. Navigation surgery, posttraumatic orbital reconstruction, computer-assisted orbital surgery, image-guided orbital decompression, and optic canal decompression (OCD) were the areas of interest. The search generated 42 articles describing the use of navigation in facial surgery: 22 on orbital reconstructions, 5 related to lacrimal sac surgery, 4 on orbital decompression, 2 articles each on intraorbital foreign body and intraorbital tumors, 2 on faciomaxillary surgeries, 3 on cranial surgery, and 2 articles on navigation-guided OCD in traumatic optic neuropathy. In general, CAS is reported to be a useful tool for surgical planning, execution, evaluation, and research. The largest numbers of studies and patients were related to trauma. Treatment of complex orbital fractures was greatly improved by the use of CAS compared with empirically treated control groups. CAS seems to add a favourable potential to the surgical armamentarium. Planning details of the surgical approach in a three-dimensional virtual environment and execution with real-time guidance can help in considerable enhancement of precision. Financial investments and steep learning curve are the main hindrances to its popularity.

Descompresión orbitaria endoscópica transnasal en orbitopatía tiroidea severa / Transnasal endoscopic orbital decompression in severe thyroid orbitopathy

RESUMEN La orbitopatía tiroidea es una enfermedad autoinmune, en la que una reacción inflamatoria genera aumento de la presión orbitaria con protrusión de su contenido. A menudo es autolimitada y sus síntomas más frecuentes son retracción palpebral, exoftalmo y diplopía. Existen casos severos con compromiso de la agudeza visual por compresión del nervio óptico. El diagnóstico es clínico, pero debe complementarse con una tomografía computarizada. Su tratamiento depende de la gravedad y actividad de la enfermedad, siendo los procedimientos quirúrgicos, como la descompresión orbitaria, de elección en exoftalmo y neuropatía óptica compresiva. El pilar de tratamiento en la orbitopatía tiroidea severa es la cirugía descompresiva. Se han descrito múltiples técnicas, pero con limitaciones. La descompresión endoscópica transnasal, es considerada actualmente el procedimiento de elección, ya que permite una buena visualización de la pared medial, con resultados comparables y menores complicaciones, respecto a métodos tradicionales. Describimos un caso de oftalmopatía tiroidea severa, con exoftalmo, diplopía y disminución de la agudeza visual, en la que se realizó una descompresión endoscópica con muy buenos resultados.

ABSTRACT Thyroid orbitopathy is an autoimmune disease in which an inflammatory reaction generates increased orbital pressure with protrusion of its contents. It is often self-limiting and its most frequent symptoms are eyelid retraction, exophthalmos and diplopia. There are severe cases with compromised visual acuity due to compression of the optic nerve. The diagnosis is clinical, but must be complemented with a computed tomography scan. Its treatment depends on the severity and activity of the disease and the surgicals procedures such as orbital decompression is the best choice in exophthalmos and compressive optic neuropathy. The treatment in severe thyroid orbitopathy is decompressive surgery. Multiple techniques have been described, but with limitations. The transnasal endoscopic decompression is currently considered the gold standard, since it allows a good visualization of the medial wall with comparable results and less complications, compared to traditional methods. We present a case of severe thyroid ophthalmopathy, with exophthalmos, diplopia and decreased visual acuity, in which a transnasal endoscopic decompression was performed with very good outcomes.

The Clinical Result of Medial Orbital Decompression in Patients with Thyroid-associated Orbitopathy

PURPOSE: To evaluate the clinical effects of medial orbital decompression in patients with thyroid orbitopathy. METHODS: Forty-three orbits of 28 patients who underwent medial orbital decompression for cosmetic purposes between January 2014 to January 2017 were retrospectively reviewed. Changes in visual acuity, intraocular pressure, exophthalmos, strabismus, and diplopia were checked before, 3 months, and 1 year after surgery. RESULTS: The average exophthalmos reduction was −2.99 ± 0.96 mm at postoperative 3 months and −3.07 ± 1.24 mm after 1 year (both, p < 0.001). In patients who underwent unilateral orbital decompression, the mean difference in exophthalmometry between the two eyes was significantly reduced from 3.06 ± 0.78 mm to 0.38 ± 0.44 mm after 3 months, and to 0.50 ± 0.46 mm after 1 year (p = 0.011 and p = 0.012, respectively). After surgery, the final postoperative intraocular pressure decreased significantly at postoperative 3 months and 1 year (both, p < 0.001). The mean preoperative horizontal deviation was 0.88 ± 4.85 prism diopters (PD) and 5.50 ± 6.74 PD at postoperative 3 months, which demonstrated significant esodeviation postoperatively (p = 0.007). Three patients had new onset esotropia (8.33%), but no surgical treatment was needed. CONCLUSIONS: Medial orbital decompression is a less invasive and safe surgical procedure for patients with asymmetric or mild thyroid-associated orbitopathy, which can be beneficial for reducing proptosis.

Three Wall Orbital Decompression for Compressive Optic Neuropathy in Thyroid Ophthalmopathy / 대한이비인후과학회지

Thyroid ophthalmopathy is an autoimmune disease that affect the orbital and periorbital soft tissue, characterized by bulging eye (exophthalmos) and compressed orbital structures, such as the optic nerves. The indications for surgical treatment for thyroid ophthalmopathy include decreased visual acuity caused by optic neuropathy, conjunctivitis and progressive facial deformity caused by exophthalmos. Orbital wall decompression by nasal endoscopy resulte in good cosmetic effects and visual recovery. Balanced orbital decompression is considered to be a safe and effective surgery that can help avoid postoperative diplopia. We introduce three successful cases of orbital wall decompression for the treatment of thyroid ophthalmopathy.

Position and size of the sphenoid door jamb in the lateral orbital wall for the orbital decompression / 대한해부학회지

The aim of this study was to identify the three-dimensional topography of the sphenoid door jamb (SDJ) in the lateral orbital wall and to propose navigational guidelines for safe deep lateral decompression using surgical landmarks. The 120 orbits and SDJs of 60 subjects were three-dimensionally reconstructed using Mimics software. The mean volumes of the orbit and SDJ were 24.3 mm³ and 2.0 mm³, respectively. The mean distances from the lateral orbital margin (LOM) to the anterior and posterior margins of the SDJ were 13.2 and 36.3 mm, respectively. The mean distances from the superior orbital fissure to the LOM and to the posterior margin of the SDJ were 40.2 mm and 4.6 mm, respectively. The mean distances from the inferior orbital fissure (IOF) to the anterior and posterior margins of the SDJ were 3.8 mm and 20.5 mm, respectively. In the superior approach of the orbit, it can be predicted that the area up to 3 cm posterior from the LOM is safe, while 1 cm posterior from the safe zone could be a dangerous zone. In the inferior approach of the orbit, the safe area will be about 1 cm posterior from the anterior tip of the IOF, and the area up to 1 cm posterior from the safe zone should be approached with extreme care.

Treatment of Graves' Ophthalmopathy

Graves' ophthalmopathy (GO) is an autoimmune disease associated with orbital inflammation and fibrosis which can result in lid retraction, soft tissue swelling, and proptosis. Treatment should rely on a thorough assessment of the activity and severity of GO. Control of risk factors for GO progression and topical treatments for dry eye are recommended for all patients. In mild GO, a careful observation is usually sufficient. In moderate-to-severe and active GO, high-dose intravenous glucocorticoids can be considered an initial treatment. The most common schedule for intravenous glucocorticoids is a cumulative dose of 4.5 g of methylprednisolone, divided into 12 weekly infusions (6 weekly infusions of 0.5 g, followed by 6 weekly infusions of 0.25 g). Orbital radiation has been shown to be an effective secondary treatment in patients with active GO unresponsive to intravenous glucocorticoids. Rehabilitative surgery is needed in patients with GO when the disease is associated with a significant impact on quality of life or visual function after the disease has been inactive for at least 6 months.

Descompresión orbitaria por vía endoscópica nasal en la orbitopatía tiroidea: nuestra experiencia / Endoscopic orbital decompression for the management of thyroid eye disease: our experience / Decompressão orbitaria por via nasal endoscópica na orbitopatia tírida: nossa experiência

INTRODUCCIÓN: La orbitopatía tiroidea es una de las manifestaciones extratiroideas más frecuentes de la enfermedad de graves. El diagnóstico es clínico y con estudios de imágenes. El tratamiento depende de la etapa en que se encuentre la enfermedad, pudiendo ser conservador o quirúrgico, siendo la descompresión orbitaria el pilar del tratamiento. OBJETIVOS: Describir la técnica quirúrgica y las complicaciones más frecuentes. Comprobar los beneficios en la reducción del exoftalmos, la mejoría de la agudeza visual y la descompresión del nervio óptico...

INTRODUCTION: Thyroid orbitopathy is one of the most frequent extra thyroid manifestations of Graves' disease. The diagnosis is clinical and with imaging studies. The treatment depends on the stage in which the disease is found; can be conservative or surgical, the orbital decompression is the pillar of the treatment. OBJECTIVES: Describe the surgical technique and the most frequent complications checking the benefits in the reduction of exophthalmos, the improvement of visual acuity and decompression of the optic nerve…

INTRODUÇÃO: A orbitopatia tireoidiana é uma das manifestações extra tireóides mais freqüentes da doença de graves. O diagnóstico é clínico e com estudos de imagem. O tratamento depende da fase em que a doença é encontrada; podendo ser conservador ou cirúrgico, sendo a descompressão orbital o pilar do tratamento. OBJETIVOS: Descreva a técnica cirúrgica e as complicações mais frequentes. Verificar os benefícios na redução do exoftalmos, a melhora da acuidade visual e descompressão do nervo óptico...

Clinical efficacy of orbital decompression in patients with Graves ophthalmopathy / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To evaluate the efficacy and safety of orbital decompression in the treatment of Graves ophthalmopathy. ·METHODS: Totally 55 patients 77 eyes with Graves eye disease were selected in our hospital from February 2011 to February 2016. All eyes underwent orbital decompression, the visual acuity, exophthalmos and complications of the patients were followed up for 6mo. · RESULTS: Postoperatively 6mo, the best corrected visual acuity were 0. 23±0. 09, which were better than that of preoperative 0. 46±0. 07(P<0. 05). Postoperatively 6mo, the degree of exophthalmos of the patients were 16. 20 ± 1. 99mm, which was significantly lower than that preoperative 20. 13±1. 87mm (P<0. 05). Postoperative CAS score was ≤3 points in 56 eyes ( 73%) , significantly increased compared with preoperative 15 eyes (19%), the difference was statistically significant (P<0. 05). There were 50 eyes ( 65%) with color vision disorder before operation;after operation, 42 eyes (55%) had significant improvement in visual impairment, and there was no change in the eye in 8 eyes (10%). Postoperatively 6mo, the average decreased degree of exophthalmos were 3. 87±1. 03mm;5 cases were found postoperative diplopia, new diplopia rate was 10%;followed up for 3mo, diplopia disappeared. ·CONCLUSION:Orbital decompression is an effective method for the treatment of Graves ophthalmopathy, but attention should be paid to postoperative complications such as diplopia.

Change in Quality of Life after Orbital Decompression Surgery in Patients with Dysthyroid Ophthalmopathy

PURPOSE: To evaluate the effect of orbital decompression surgery on quality of life in thyroid-associated ophthalmopathy (TAO) patients. METHODS: From August 2014 to December 2015, 80 patients diagnosed with TAO at our clinic were retrospectively analyzed. The patients were divided into 2 groups: 30 patients who underwent orbital decompression surgery and 50 patients who did not receive surgery. The Korean version of the Grave's ophthalmopathy specific quality of life (GO-QoL) questionnaire was completed by all patients. We compared questionnaire scores between groups and analyzed demographic and clinical factors affecting change in GO-QoL. RESULTS: The patients who underwent orbital decompression had lower mean GO-QoL score for appearance in comparison with patients without orbital decompression (p < 0.001). The mean GO-QoL score for appearance was increased from 28.8 ± 17.1 to 51.5 ± 18.8 after orbital decompression (p = 0.024). The mean GO-QoL score for visual function was not different between the patients who did not receive surgery and the orbital decompression group. The mean GO-QoL score for visual function was not changed after orbital decompression. There was a significant relation between postoperative proptosis degree and change in GO-QoL score for appearance after orbital decompression. CONCLUSIONS: GO-QoL score for appearance was significantly improved after orbital decompression surgery, and psychological interventions should be considered to enhance the quality of life outcomes.

Current Trends in the Management of Thyroid Ophthalmopathy / 한양의대학술지

Thyroid ophthalmopathy (TO) is an autoimmune inflammatory disorder involving the orbit characterized by inflammation and swelling of the extraocular muscles and an increase in orbital fat and connective tissue. Despite extensive research, TO continues to be a difficult condition for the patient to cope with and for the clinician to treat. Current treatments consist of systemic immunosuppression, orbital irradiation, and surgery. It is promising for patient refractory to conventional therapy that pathogenesis of TO at molecular level which advance development of new therapies targeting cellular immunity are now better understood. Future therapies targeting immune system or specific molecules are under investigation and show promise for the future. This review will describe current trends in the management of TO, from well-established therapies such as glucocorticoids, orbital irradiation and orbital decompression to more innovative therapies targeting immune system or specific molecules involved in TO pathogenesis.

Surgical Outcomes of Balanced Deep Lateral and Medial Orbital Wall Decompression in Korean Population: Clinical and Computed Tomography-based Analysis

PURPOSE: To evaluate the clinical outcomes of balanced deep lateral and medial orbital wall decompression and to estimate surgical effects using computed tomography (CT) images in Korean patients with thyroid-associated ophthalmopathy (TAO). METHODS: Retrospective chart review was conducted in TAO patients with exophthalmos who underwent balanced deep lateral and medial orbital wall decompression. Exophthalmos was measured preoperatively and postoperatively at 1 and 3 months. Postoperative complications were evaluated in all study periods. In addition, decompressed bone volume was estimated using CT images. Thereafter, decompression volume in each decompressed orbital wall was analyzed to evaluate the surgical effect and predictability. RESULTS: Twenty-four patients (48 orbits) with an average age of 34.08 ± 7.03 years were evaluated. The mean preoperative and postoperative exophthalmos at 1 and 3 months was 18.91 ± 1.43, 15.10 ± 1.53, and 14.91 ± 1.49 mm, respectively. Bony decompression volume was 0.80 ± 0.29 cm3 at the medial wall and 0.68 ± 0.23 cm3 at the deep lateral wall. Postoperative complications included strabismus (one patient, 2.08%), upper eyelid fold change (four patients, 8.33%), and dysesthesia (four patients, 8.33%). Postsurgical exophthalmos reduction was more highly correlated with the deep lateral wall than the medial wall. CONCLUSIONS: In TAO patients with exophthalmos, balanced deep lateral and medial orbital wall decompression is a good surgical method with a low-risk of complications. In addition, deep lateral wall decompression has higher surgical predictability than medial wall decompression, as seen with CT analysis.

Approach to the patients with Graves'ophthalmopathy / 中华内分泌代谢杂志

[Summary] Graves'ophthalmopathy ( GO) is the most common extrathyroidal manifestation of Graves disease ( GD) . It is an organ-specific autoimmune disorder. The estimated incidence of GO in the general population is 16 women and 3 men per 100,000 population every year. Approximately 3%-5% of patients with GO are exposed to the potential of losing their sight and requiring optimized medical intervention. For the clinicians it is helpful to assess the degree of activity and severity of GO;both are important in deciding whether a patient requires intervention and which type of intervention is indicated. These interventions include management of hyperthyroidism, measures to relieve local symptoms, immunosuppressive therapies for active moderate and severe GO, and finally rehabilitative surgery for inactive patients.

Changing of the orbital volume after endoscopic transethmoid medial wall decompression combined with the endoscopic transethmoid intraconal fat-removal orbital decompression in thyroid associated ophthalmopathy / 中国内镜杂志

Objective To present the changing of the parameters of orbital volume after endoscopic transethmoid medial orbital wall decompression combined with the endoscopic transethmoid intraconal fat-removal orbital decompression in thyroid associated ophthalmopathy (TAO).Methods A retrospective chart was reviewed in 11 patients (20 eyes) receiving orbital decompression for the treatment of exophthalmos secondary to TAO from September 2014 to August 2015. All patients diagnosed TAO were in stable and inactive phase at least for 6 months. High-resolution computed tomography (HRCT) scan were performed in all patients before and 3-month after surgery. CT scan of orbit and computer-aided measurement software were used to measure the exophthalmos. Changing of the parameters of orbital volume were recorded for analysis its relationship with the amount of proptosis reduction.Results The exophthalmos was signiifcantly decreased after surgery. Medial rectus volume, fat volume and orbital volume were larger postoperatively. The changing of rectus volume and fat volume both had negative correlationship with the amount of proptosis.Conclusions The thickening of medial rectus 3-month postoperative may due to the removing of medial wall of orbit during the surgery. The stimulation of the surgery may be another reason. The changing of rectus volume and fat volume both had negative correlationship with the amount of proptosis.

Customized Orbital Decompression Surgery Combined with Eyelid Surgery or Strabismus Surgery in Mild to Moderate Thyroid-associated Ophthalmopathy

PURPOSE: To evaluate the efficacy and safety of customized orbital decompression surgery combined with eyelid surgery or strabismus surgery for mild to moderate thyroid-associated ophthalmopathy (TAO). METHODS: Twenty-seven consecutive subjects who were treated surgically for proptosis with disfigurement or diplopia after medical therapy from September 2009 to July 2012 were included in the analysis. Customized orbital decompression surgery with correction of eyelid retraction and extraocular movement disorders was simultaneously performed. The patients had a minimum preoperative period of 3 months of stable range of ocular motility and eyelid position. All patients had inactive TAO and were euthyroid at the time of operation. Preoperative and postoperative examinations, including vision, margin reflex distance, Hertel exophthalmometry, ocular motility, visual fields, Goldmann perimetry, and subject assessment of the procedure, were performed in all patients. Data were analyzed using paired t-test (PASW Statistics ver. 18.0). RESULTS: Forty-nine decompressions were performed on 27 subjects (16 females, 11 males; mean age, 36.6 +/- 11.6 years). Twenty-two patients underwent bilateral operations; five required only unilateral orbital decompression. An average proptosis of 15.6 +/- 2.2 mm (p = 0.00) was achieved, with a mean preoperative Hertel measurement of 17.6 +/- 2.2 mm. Ocular motility was corrected through recession of the extraocular muscle in three cases, and no new-onset diplopia or aggravated diplopia was noted. The binocular single vision field increased in all patients. Eyelid retraction correction surgery was simultaneously performed in the same surgical session in 10 of 49 cases, and strabismus and eyelid retraction surgery were performed in the same surgical session in two cases. Margin reflex distance decreased from a preoperative average of 4.3 +/- 0.8 to 3.8 +/- 0.5 mm postoperatively. CONCLUSIONS: The customized orbital decompression procedure decreased proptosis and improved diplopia, in a range comparable to those achieved through more stepwise techniques, and had favorable cosmetic results when combined with eyelid surgery or strabismus surgery for mild to moderate TAO.

Minimally invasive surgery for thyroid eye disease.

Thyroid eye disease (TED) can affect the eye in myriad ways: proptosis, strabismus, eyelid retraction, optic neuropathy, soft tissue changes around the eye and an unstable ocular surface. TED consists of two phases: active, and inactive. The active phase of TED is limited to a period of 12–18 months and is mainly managed medically with immunosuppression. The residual structural changes due to the resultant fibrosis are usually addressed with surgery, the mainstay of which is orbital decompression. These surgeries are performed during the inactive phase. The surgical rehabilitation of TED has evolved over the years: not only the surgical techniques, but also the concepts, and the surgical tools available. The indications for decompression surgery have also expanded in the recent past. This article discusses the technological and conceptual advances of minimally invasive surgery for TED that decrease complications and speed up recovery. Current surgical techniques offer predictable, consistent results with better esthetics.