Abstract
Background
Thyroid eye disease (TED) is characterized by inflammation of orbital tissue, proptosis, diplopia, and potential changes in facial appearance. TED has been associated with poor mental health and reduced health-related quality of life (HRQOL) due to the combined impact of impaired visual functioning and changes in facial appearance. The study aims to determine the impact of treatments for TED on patients’ HRQOL as a measure of comprehensive well-being.
Methods
Systematic searches of literature in MEDLINE, EMBASE and CINAHL databases and grey literature sources were conducted. After de-duplication and screening, the modified Downs-and-Black criteria were used to assess the risk of bias. Baseline characteristics, HRQOL-questionnaire data, and mean HRQOL measurements were extracted.
Results
Searches yielded 313 studies from databases and 9 grey literature studies. 23 studies (2023 patients total) were included for quality assessment and data synthesis. Strabismus surgery yielded the greatest improvement in total HRQOL score. Surgical interventions improved visual function QOL (VF-QOL) and visual appearance QOL scores (Ap-QOL).
Other medical therapies, including doxycline and selenium were effective for improving Ap-QOL.
Conclusion
Surgical interventions, particularly decompression, eyelid, and strabismus surgery, improved appearance-related QOL. Immunosuppressive therapy and doxyxycline contributed to progressive functional improvements over time. Longer follow-up durations were generally associated with greater patient-reported benefit from treatments.
Introduction
Thyroid eye disease (TED) is an autoimmune condition associated Graves’ disease, affecting 25% of patients with Graves’ hyperthyroidism and with varying regional prevalence ranging from 27% in North America to 58% in Oceania. 1 It can also develop in euthyroid or hypothyroid individuals and in association with other autoimmune thyroid disorders such as Hashimoto thyroiditis. 2
Psychological care is notably underemphasized in Graves’ disease (GD) care, despite the association of disease with increased suicide risk. 3 TED has also been associated with loneliness, depression and anxiety, with the combined impact of impaired visual functioning and changes in facial appearance contributing significantly to reduced health-related quality of life. 4 This may be due to a variety of reasons including impaired vision and facial disfigurement.
Characterized by inflammation of the orbital tissues, TED leads to a range of visual and cosmetic symptoms, including eyelid retraction, proptosis and restrictive extraocular myopathy. These symptoms may be associated with visual disturbances such as blurry or double vision, lacrimation, photophobia and even optic nerve compression, all of which may impair vision. 5 Many individuals may struggle with daily tasks like driving. Patient-reporting tools like the Graves’ Ophthalmology Quality of Life Questionnaire (GO-QOL) are designed with patients’ experiences of the disease and symptoms management in mind. The GO-QOL consists of two sub-sections (visual functioning (VF) and visual appearance (VA)), where a higher score indicates better health-related QOL (HRQOL). 6 These scores may be used to measure patients’ challenges with managing symptoms of impaired vision and aesthetic disfigurement.
Treatment for TED includes both medical (e.g glucocorticoid, small-molecule, selenium) and surgical (e.g orbital decompression) interventions depending on disease phase and severity. Medical treatments like immunosuppressive therapy with corticosteroids help with reducing swelling while orbital decompression surgery is the preferred intervention for cases involving optic nerve compression or severe proptosis. 2 The treatment of TED should be tailored to each patient, emphasizing a holistic, patient-centered approach that addresses both its physical and psychological effects.
While the association between TED and mental health conditions is known, the comparative effects of different treatments on patient's quality of life is not known. The aim of this systematic review is to evaluate how different treatment modalities affect patients’ perceived quality of life. HRQOL results will be used as a comprehensive measure of mental and physical well-being. This review will address the impact of treatments for TED on patient's perceived personal wellness, encompassing functional status, confidence and self-esteem.
Methods
Search design
In this systematic review, Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines were followed. 7 Figure 1 displays the detailed PRISMA flowchart. Searches were carried out over MEDLINE/PubMed (Ovid), EMBASE (Ovid), and CINAHL (EBSCO) databases. Grey literature was also searched, including ProQuest Dissertations and Theses Global, and conference abstracts held through the American Academy of Ophthalmology (AAO) and the Association for Research in Vision and Ophthalmology (ARVO). Search strategies designed for each source comprised the keywords presented in Appendix A. Published and unpublished studies were searched between July 2018 until May 202

PRISMA flowchart depicting results from the literature search.
Screening
Randomized control trials, clinical trials, multicenter studies, comparative studies and observational studies were included for meta-analysis. Studies in the English language and conducted on at least 20 human orbits in subjects aged 18 or older with TED were included. Studies measuring HRQOL, anxiety, depression, psychological distress or other measures of psychological health prior to and following intervention were included. Studies were excluded if they had no data reported or were not available in English text or translation.
Results were imported into Covidence (Systematic review software, Veritas Health Innovation, Melbourne). After removing duplicates, two levels of screening were conducted by two independent reviewers (A.L. and B.Y.) Appendix B provides details on screening questions. At each stage, agreements and disagreements were merged and conflicts were resolved. Cohen's kappa coefficient (Appendix C) was computed at each level of screening.
Quality assessment
A modified Downs and Black checklist was used to assess the methodological quality of studies, including risk of bias (Appendix D). 8 The checklist includes questions to critically appraise study methodologies by evaluating external validity, study bias, confounding and selection bias, and the power of the study.
Data extraction
The following information was extracted from studies with a quality score of at least 17 (out of 27): author(s), year of publication, country of origin, study design, sample size, treatment and control groups, size of each group, mean age of participants in each group, percentage of female participants in each group, testing period, follow up period, baseline clinical activity scores (CAS) and QOL questionnaire type. Various HRQOL assessments were reported including disease specific questionnaires (Graves’ ophthalmopathy QOL, TED-QOL, ThyPRO), generic health surveys (SF-36, SF-12). Treatments included radiotherapy, hormones, antibodies, antibiotics, enzyme inhibitors, minerals, and surgical procedures.
Data-analysis
Due to the clinical heterogeneity of TED phenotypes and the variability in intervention targets, we performed a narrative synthesis stratified by treatment, using pre- and post-treatment HRQOL scores. In many clinical settings, patients have mixed phenotypes and receive treatments with different targets (e.g decompression surgery for proptosis and optic neuropathy).
This approach provides more nuanced clinical distinctions by reflecting real-world clinical decision-making for TED. Studies assessing patient-reported outcomes using instruments not directly comparable with the GO-QOL were retained for narrative contextualization.9,10
Results
Database searches yielded 313 studies including 172 from MEDLINE, 107 from EMBASE and 34 from CINAHL. 9 additional texts were found from grey literature sources. After screening, 77 studies remained for full-text extraction. The KAPPA statistics for agreement between two reviewers were 0.38 and 0.57 for title and abstract screening. Following full-text screening and quality assessment, data was extracted from 23 studies that took place in 13 countries, Bulgaria, Brazil, Canada, China, Germany, Iran, Israel, Italy, Netherlands, Taiwan, Thailand, United Kingdom, USA. The treatments assessed in these studies were intravenous glucocorticoids (IVGC), antibiotics, decompression surgery, eyelid surgery, fat resection surgery, immunosuppressive therapy, IV glucocorticoids, minerals (selenium), orbital rim removal surgery, pentoxifylline, placebo, radiotherapy, small molecule treatment (doxycycline), squint surgery, strabismus surgery, teprotumumab and thyroidectomy. Characteristics of the studies are summarized in Table 1. Reported adverse events and complications from the included studies are summarized in Table 2.
Study characteristics of articles included in data extraction.
*Note: indicated studies are distinct studies involving different interventions from different years.
Reported rates of adverse events and complications.
Summary of go-QOL scores
Baseline scores
Stoynova et al. found patients with mild TED had higher VF QOL scores (82.0 ± 15.3, p < 0.01) compared to moderate-to-severe (54.6 ± 27.2, p < 0.01) and sight-threatening GO (27.3 ± 20.0, p < 0.01) at baseline. Furthermore, higher CAS, diplopia score, worse visual acuity, and greater symptom severity were associated with lower visual function scores (R2 = 0.44, p < 0.01). Female gender, higher CAS, diplopia score, and greater proptosis were associated with lower appearance scores (R2 = 0.39, p < 0.01). 11
In a cross-sectional study, dysthyroid optic neuropathy (DON) patients had significantly lower visual function scores (33.18 vs. 81.26) compared to non-DON patients. 12
Surgical treatments
Surgical interventions, including decompression, strabismus, and eyelid surgeries, demonstrated varying degrees of improvement in visual function and visual appearance for patients with TED. Cheng et al. and Fichter et al conducted retrospective studies, both demonstrating improved VF scores with decompression surgeries (p < 0.01, p = 0.016 respectively; Table E1).13,14 Almeida et al. (2024) compared inferomedial wall orbital decompression and medial plus lateral wall orbital decompression, which both significantly reduced exophthalmos by 2.4 and 3.8 mm respectively (p < 0.001). Only medial plus lateral decompression significantly improved appearance scores (p = 0.006). There was no significant change in visual functioning scores (p = 0.362, p = 0.727). 15
The prospective study by Jellema et al. reported an increase in VF scores (p = 0.009) and VA scores (p = 0.005) in response to strabismus surgery (Tables E1 and E2). 16
Fayers et al. reported improved visual appearance with all procedures (decompression, strabismus, and eyelid surgeries; p = 0.038, p = 0.016, and p = 0.0003, respectively; Table E2). VF score improved with strabismus surgery (p = 0.0048) and eyelid surgery for palpebral aperture narrowing (p = 0.1244). However, VF was scored worse with decompression surgery (p = 0.94). 17
Steroid treatments
Two studies investigated the effects of methylprednisolone on GO-QOL. Hoppe et al. found improved visual functioning at 6 months and 9 months (p = 0.01, p = 0.04 respectively) and significant improvement in scores over time (Tables E1, E2 and E3). Furthermore, visual appearance also improved at all follow ups (p = 0.01, 0.005). 18 Bartalena et al. found dose-dependent increase in VF scores with treatment over 12 weeks (p < 0.05, Table E1). 19
Combined steroid and surgical treatments
Multiple studies compared the impact of various treatments within the same study population. Campi et al. reported significant improvements in visual function and visual appearance in patients responding to IVGC treatment (p < 0.05) and squint surgery (p < 0.01). In this study, patients were considered “responsive” to treatment based on a post-treatment Clinical Activity Score (CAS) < 3. The effect of steroid treatment on HRQOL was associated with response to treatment, while squint surgery was associated with improved VF scores despite response to treatment (Tables E1 and E2). 20
Kashkuoli et al. found improved visual function with both glucocorticoid treatment and decompression surgery (p = 0.06; Table E1). 21 Similarly, Zloto et al. found significantly higher overall GO-QOL scores (p < 0.001) in groups receiving IVGC, immunosuppressive therapy and surgical interventions compared to untreated controls (Table E3). 22
Small-molecule treatments
Lin et al. performed a cross-sectional study demonstrating improved visual function and visual acuity with doxycycline antibiotic treatment (p = 0.21, p = 0.0008 respectively; Tables E1 and E2). 23
Biologics
Smith et al. conducted a RCT showing improved visual function with teprotumumab antibody treatment compared to the placebo group (p < 0.001; Table E1). 24
Marcocci et al. found improved visual function and visual appearance with selenium antioxidant treatment compared to placebo (p < 0.05, p < 0.001 respectively; Tables E1 and E2). 25 Conversely, Potita et al. found no significant change in GO-QOL scores in the selenium group, but did note reduction in palpebral aperture (−1.4 ± 1.7 mm, p = 0.04). 26
Radiotherapy treatment
In a RCT, Prummel et al. assessed the impact of radiotherapy on GO-QOL. Counterintuitively, the placebo group exhibited higher VF scores than the radiotherapy group (Table E1). However, the radiotherapy group demonstrated slightly improved VA compared to the placebo group (Table E2). 27
Radiotherapy compared to surgical treatment
Terwee et al. conducted a prospective study evaluating the impact of various treatments on GO-QOL. Both eye muscle surgery and blepharoplasty improved visual function scores, with blepharoplasty also enhancing visual appearance. Decompression surgery led to improved overall GO-QOL. While radiotherapy showed improved VF scores, further research is needed to confirm these findings due to the relatively small effect size (p = 0.05). 28
Changes in QOL scores across treatments groups
Changes in total QOL score stratified across treatment groups can be seen in Figure 2, with improvement in scores with extended follow-up intervals, particularly with IVGC from 0 to 30 months. Strabismus surgery had the greatest improvement in GO-QOL at 30 months (Figure 2).

Improvement in total go-QOL score stratified by treatment groups at different follow-up durations. Each bar represents an individual study observation, color-coded by treatment category as seen in the corresponding legend.
Strabismus surgery notably improved visual function QOL scores early at 2 months. Eyelid surgery similarly substantially improved VF-QOL at 3 months and an unspecified timepoint. Decompression surgery had some mixed results at 6 months, but generally improved VF-QOL. Steroid treatment generally improved VF-QOL as time progressed up to 9 months of follow-up. Mineral supplement yielded increasing improvement on VF-QOL from 6 to 12 months. Overall, all treatment generally improved patient-perceived vision compared to placebo, which consistently worsened VF-QOL scores (Figure 3).

Improvement in visual function QOL (vf-QOL) by treatment groups at different follow-up durations.
(A–F) Each panel displays the mean change in VF-QOL scores reported at timepoints:
(A) 2 months, (B) 3 months, (C) 6 months, (D) 9 months, (E) 12 months, and (F) timepoint not reported. Each bar represents an individual study observation, color-coded by treatment category as seen in each corresponding legend.
Panels (A–F) display the mean change in Ap-QOL score at the following timepoints:
(A) 2 months, (B) 3 months, (C) 6 months, (D) 9 months, (E) 12 months, and (F) timepoint not reported. Each bar represents an individual study observation, color-coded by treatment category as seen in each corresponding legend.
Greatest improvements in Ap-QOL were seen with eyelid and decompression surgery at 3 and 6 months respectively, and at an unspecified timepoint. Strabismus surgery showed early improvement at 2 months and at an unspecified timepoint. Small molecule treatment with doxycycline also notably improved Ap-QOL at 3 and 6 months. There were some mixed results seen with steroids at 6 months, with improvement in Ap-QOL by 9 months. Placebo resulted in mixed Ap-QOL changes at 6 and 12 months. Mineral treatment with selenium improved Ap-QOL at 6 months and 12 months (Figure 4).

Improvement in visual appearance QOL (ap-QOL) by treatment groups at different follow-up durations.
Adverse effects of treatments
Musculoskeletal symptoms like muscle spasms, myalgia and arthralgia were common adverse effects among biologics like monoclonal antibody medications (teprotumumab and rituximab)24,27,29 (Table 2). Surgical procedures, like decompression surgery, were associated with neurological symptoms such as dysesthesia and frontal muscle paralysis, as well as general side effects like swelling. Skin symptoms such as alopecia, skin retraction, and irritation were present across medicinal and surgical treatment (Table 2).
Discussion
The European Group on Graves’ Orbitopathy (EUGOGO) guidelines emphasize the importance of addressing both physical and mental health aspects of TED for comprehensive management. 2 This systematic review investigated the impact of different classes of treatments for TED on patients’ perceptions of visual function and visual appearance. In alignment with EUGOGO recommendations, our findings highlight the importance of surveying patients’ perceptions of treatments on their lives to better understand psychological well-being and tailoring treatments based on patients’ goals. A holistic approach integrating both medical and psychological aspects may lead to improved patient satisfaction and treatment adherence.
There are several proposed mechanisms describing the impact of TED on psychological health. From the cross-talk between the endocrine and neuropsychiatric systems to the presence of antibodies targeting TSH receptors in neuronal tissue, multiple theories attempt to explain the association of mood and anxiety disorders in patients with TED and other endocrine disorders.30–33 These neuropsychiatric components of TED support the integration of mental health care in treatment plans. The interplay between TED severity and QOL highlights how each can both predict and exacerbate the other. The predictive model developed by Liang et al. uses GO-QOL scores to identify patients at risk for DON, suggesting integration of HRQOL scores into screening protocols may facilitate earlier intervention. 12
While steroids are typically prescribed for active inflammatory disease process, decompression surgery for proptosis or optic neuropathy, and strabismus surgery for restrictive myopathy, patient presentations and indications for treatment were more heterogenous. Our treatment-stratified synthesis enables clinical insight while preserving study-level context to evaluated treatment impact on patient-reported outcomes. Total GO-QOL score improvements were seen across all treatment groups but especially with strabismus surgery. Surgical treatments, particularly decompression, eyelid and strabismus surgery, were associated with the greatest improvements in appearance-related Ap-QOL. Strabismus surgery contributed to early improvements at 2 months while eyelid and decompression surgeries were more impactful at 3 and 6 months. These findings align with prior research indicating that the psychosocial burden of TED is heavily influenced by disfigurement, reinforcing the value of surgical intervention in restoring patient confidence and mental well-being.14,16,21 Surgical interventions also improved visual function QOL, with strabismus leading the greatest score improvement, which may be associated with improved muscle control and reduced diplopia. 34
Steroid treatments demonstrated progressive benefits in VF-QOL and Ap-QOL over time, particularly by 9 months. In the literature, the effects of methylprednisolone are similarly mixed.19,35,36 The reason may be traced to the role of methylprednisolone to primarily reduce orbital inflammation, which does not directly correlate with improving visual function.18,19,35–37 Given the delay in symptom relief, early involvement of a multidisciplinary team, including psychiatrists, neurologists, ophthalmologists, and endocrinologists, may provide crucial psychological support during this extended recovery phase.
Longer follow-up was generally associated with greater gains, especially with IVGC up to 30 months improving total GO-QOL. Similarly, mineral treatment yielded increasing improvement on VF-QOL over time. Radiotherapy treatment increasingly improved Ap-QOL from 3 to 12 months, and also resulted in modest improvement in VF-QOL. A period of 6 to 18 months has been generally recommended for recovery for all TED treatments (medical, surgical, or radioiodine).38,39 Our results indicate substantial patient perceived improvement in quality of life beyond this time frame.
Further work may investigate optimal surgical approaches and recovery timelines from patients’ perspectives. For instance, the differentiation between inferomedial and medial plus lateral wall decompression provides further granularity in surgical planning for functional and aesthetic outcomes. 15 Other evidence suggests both lateral orbital wall decompression and balanced decompression techniques yield similar improvements in visual appearance, allowing for greater flexibility in surgical planning.39,40
The review of adverse effects associated with both pharmacological and surgical treatments for TED is presented alongside their therapeutic benefits. These findings underscore the importance of comprehensive patient counseling to manage expectations regarding potential musculoskeletal and neurological complications. With these findings, clinicians can better manage patient expectations and tailor treatment plans to provide care for the physical and psychological symptoms of this disease.
A limitation of this review is the inherent heterogeneity in TED phenotypes across included studies. Despite efforts to categorize clinical presentations (e.g., inflammatory, myopathic, proptosis/cosmetic, optic neuropathy), overlapping clinical features frequently necessitated multi-target interventions. Future research could refine subgroup analyses by employing standardized phenotype definitions and stratifying outcomes by distinct clinical presentations.
Conclusion
Given the profound impact of TED on psychological and physical well-being, this study provides a comprehensive assessment of how different treatment modalities influence patients’ perception of their health. While treatment efficacy varied across group, most interventions, particularly steroid and mineral supplementation, improved patient perceived outcomes particularly with longer follow-up. Surgical treatments including eyelid, strabismus and decompression surgery, had substantial improvement on appearance-related QOL. These findings suggest that surgical intervention is particularly effective for patients who primary concern is disfigurement, given the correlation of visual appearance with psychological distress. Furthermore, predictive models using HRQOL scores to identify DON patients highlight the potential for using HRQOL scores to facilitate earlier intervention and better patient outcomes.
Future research may focus on refining patient selection criteria, standardizing phenotype classifications and developing combination therapies that enhance both vision and appearance outcomes. An individualized treatment strategy is recommended for all patients, incorporating pharmacological, surgical and psychological support. The management of TED requires a multidisciplinary approach to address the diverse factors impacting patient HRQOL. By adopting a multidisciplinary, evidence-based approach, clinicians can provide more effective, patient-centered care for individuals with TED.
Supplemental Material
sj-docx-1-ejo-10.1177_11206721261422570 - Supplemental material for The burden of thyroid eye disease: Evaluating treatment outcomes on quality of life
Supplemental material, sj-docx-1-ejo-10.1177_11206721261422570 for The burden of thyroid eye disease: Evaluating treatment outcomes on quality of life by Abbie C. Lai, Brian E. Yu and Monali Malvankar-Mehta in European Journal of Ophthalmology
Footnotes
Acknowledgements
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CRediT author statement
Individual author contributions are as follows: A.L.: Conceptualization, Methodology, Investigation, Data Curation, Writing—Original Draft, Writing—Review & Editing. B.E.Y: Investigation, Data Curation, Writing—Review & Editing. M. M.: Conceptualization, Methodology, Formal analysis, Writing—Review & Editing, Supervision.
Funding
The authors received no financial support for the research, authorship, and/or publication of this article.
Declaration of conflicting interests
The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
Data availability statement
Data available within the article or its supplementary materials
Disclosures & author statements
The author received no financial support for the research, authorship, and/or publication of this article. The authors declare that they have no links of interest concerning this article.
The authors declare that the work described has not involved experimentation on humans or animals. The authors declare that the work described does not involve patients or volunteers.
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References
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