ArticleClinical ophthalmology (Auckland, N.Z.)2020
GlaucoMap - Distribution of Glaucoma Surgical Procedures in the United States.
Article in Clinical ophthalmology (Auckland, N.Z.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
16 citing papers in PubMed, 39 citations in OpenAlex.
- Five-year trends in primary open-angle glaucoma surgery: baseline characteristics preferences, and the impact of emerging techniques.International ophthalmology · 2026Article
- Geographic Distribution of US Ophthalmic Surgical Subspecialists.JAMA ophthalmology · 2025Article
- The Relationship of Frailty with Surgical and Laser Treatment for Patients with Glaucoma.Clinical ophthalmology (Auckland, N.Z.) · 2025Article
- Trends in Glaucoma Fellowship Surgical Experience.Clinical ophthalmology (Auckland, N.Z.) · 2025Article
- Beyond PhacoTrainer: Deep Learning for Enhanced Trabecular Meshwork Detection in MIGS Videos.Translational vision science & technology · 2024Article
- Ten-Year Effectiveness and Safety of Trabecular Micro-Bypass Stent Implantation with Cataract Surgery in Patients with Glaucoma or Ocular Hypertension.Ophthalmology and therapy · 2024Article
- Predicting Glaucoma Surgical Outcomes Using Neural Networks and Machine Learning on Electronic Health Records.Translational vision science & technology · 2024Article
- Permanent ocular remodeling in the setting of chronic hypotony after trabeculectomy: A case report.American journal of ophthalmology case reports · 2024Article
- Comparison of clinical outcomes between gonioscopy-assisted transluminal trabeculotomy and trabeculectomy in advanced-stage pseudoexfoliation glaucoma.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024Article
- Spatial Vision Inequalities: A Literature Review of the Impact of Place on Vision and Eye Health Outcomes.Translational vision science & technology · 2024Review
- The Evolution and Current Landscape of Minimally Invasive Glaucoma Surgeries: A Review.Cureus · 2024Review
- New XEN63 Gel Stent Implantation in Open-Angle Glaucoma: A Two-Year Follow-Up Pilot Study.Clinical ophthalmology (Auckland, N.Z.) · 2023Article
- [Glaucoma care in Germany-results of a survey among German ophthalmologists-part 2: treatment].Die Ophthalmologie · 2022Article
- Rotational extraction of incarcerated iris (REII): a slit lamp technique to reduce incarcerated iris after nonpenetrating deep sclerectomy for glaucoma.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2022Article
- Outcomes of Anterior Chamber, Sulcus, and Pars Plana Glaucoma Drainage Device Placement in Glaucoma Patients.Journal of ophthalmology · 2022Article
- Changes in Performance of Glaucoma Surgeries 1994 through 2017 Based on Claims and Payment Data for United States Medicare Beneficiaries.Ophthalmology. GlaucomaArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
purposeTo understand the distribution of trabeculectomies, glaucoma drainage implants (GDI) and micro-invasive glaucoma surgeries (MIGS) performed in the United States through geospatial mapping.
methodsWe performed an observational cohort study to evaluate glaucoma surgeries in patients age ≥65. The most recently released data from Centers for Medicare Part B Carrier Summary Files were queried to determine the number of glaucoma surgeries performed per state during the year of 2017. We created choropleth maps, titled "GlaucoMap", to characterize the rates of various surgeries performed across the United States, defined as the number of procedures performed per 10,000 individuals. A chi-squared analysis was further used to evaluate differences in surgical preferences across geographic region. Standardized residuals (SR) were calculated to determine regional influences on surgical distribution.
resultsThere were 174,788 glaucoma surgeries performed: 22,862 trabeculectomies (13.1%), 19,991 GDI (11.4%) and 131,935 (75.5%) MIGS. The Northeast had the highest trabeculectomy rate, GDI was highest in the Southeast and MIGS were highest in the Southwest. There was a statistically significant difference in proportional use of conventional surgeries versus MIGS across various regions in the United States (p < 0.0001). Given the high trabeculectomy and GDI rates and relatively low MIGS adoption in the Southeast, we observed a +7.03 SR for conventional surgeries and -4.01 SR for MIGS. The Southwest and Western states had the highest MIGS rate and contributed +3.29 and +3.24 SR toward disproportional MIGS preference, respectively. The preference for conventional surgeries in the Northeast (SR = +2.93) and MIGS in the Midwest (SR = +0.99) also contribute to the overall differences in glaucoma surgeries across the United States.
conclusionGlaucoMap is useful for visualizing the distribution of glaucoma surgeries in the United States. The heterogeneity in surgical preferences points to regional differences in glaucoma management.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.