ClinicalTrials.gg
Not yet recruitingNCT07668193GlaukomAIcareUpdated Sep 4, 2026

GlaukomAI: Clinical Validation of an AI System for Early Glaucoma Screening

An interventional study of GlaukomAI (Sens-vue GlaukomAI) in Glaucoma, sponsored by Fondazione G.B. Bietti, IRCCS. Not yet recruiting. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-04.

Sponsored by Fondazione G.B. Bietti, IRCCS · Not applicable, Interventional, and Diagnostic

Phase
Not applicable
Study type
Interventional
Enrollment
1,200
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
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Study summary

Glaucoma is one of the leading causes of irreversible blindness worldwide. Early diagnosis is crucial to prevent vision loss, but current diagnostic pathways require multiple specialist visits and tests, leading to long waiting times and delayed diagnosis.

This study aims to evaluate the accuracy of GlaukomAI, an artificial intelligence (AI)-based software that analyzes fundus photographs of the eye to detect glaucoma at an early stage.

The study is conducted at IRCCS Fondazione G. B. Bietti (Rome, Italy) and is structured in two phases:

  • Phase 1 enrolls 200 participants (100 with diagnosed glaucoma and 100 healthy controls) to assess how accurately GlaukomAI can distinguish between glaucoma and healthy eyes, compared to the judgment of a panel of three expert glaucoma specialists.
  • Phase 2 enrolls 1,000 consecutive outpatients to evaluate whether GlaukomAI can correctly identify patients who need referral to a glaucoma specialist, and to compare its performance with that of non-specialist ophthalmologists.

Participants undergo a single study visit including standard ophthalmic examinations (visual acuity, eye pressure measurement, visual field test, OCT, and fundus photography). No investigational drugs or invasive procedures are involved.

The results of this study will provide evidence to support the integration of AI-based tools into routine glaucoma screening pathways, with the goal of reducing diagnostic delays and improving access to care.

Read the detailed description

Glaucoma is a chronic optic neuropathy representing one of the leading causes of irreversible blindness worldwide, with an estimated 111.8 million cases projected by 2040. Despite the availability of effective treatments, approximately 50% of affected individuals remain undiagnosed, as the disease progresses insidiously and symptoms often appear only when damage is already advanced and irreversible.

Current diagnostic limitations include high inter-operator variability in optic disc assessment, limited sensitivity of visual field testing in early stages, and suboptimal specificity of OCT (estimated at 72% in a Cochrane systematic review). No single examination provides sufficient diagnostic accuracy, accessibility, and cost-effectiveness for large-scale screening.

GlaukomAI (Sens-vue GlaukomAI) is an AI-based diagnostic software using deep learning with Convolutional Neural Network and Transformer architecture. It analyzes standard fundus photographs to detect key glaucoma biomarkers (neuroretinal rim appearance, inferior and superior sectors) and provides a diagnostic classification (Referable Glaucoma / Non-Referable Glaucoma) within 2-8 seconds per image. The system was trained on over 100,000 fundus images from diverse ethnicities, annotated by 30 eye care professionals and validated by 243 ophthalmologists and 208 optometrists across Europe.

Study Design

This is a prospective interventional clinical investigation with a non-CE-marked medical device, structured in two complementary phases:

  • Phase 1 - Case-Control Diagnostic Accuracy Study: 200 participants (100 with diagnosed glaucoma, 100 healthy controls) are enrolled to assess the sensitivity and specificity of GlaukomAI against a gold standard defined by the consensus of a panel of three expert glaucoma specialists, based on multimodal assessment (fundus photography, OCT, and visual field).
  • Phase 2 - Prospective Referral Accuracy Assessment: 1,000 consecutive outpatients attending IRCCS Fondazione Bietti for any clinical reason are enrolled to evaluate the referral accuracy of GlaukomAI (binary output: Referable / Non-Referable) in a real-world setting, and to compare its performance with that of non-glaucoma-specialist ophthalmologists evaluating the same pseudonymized fundus images.

All participants undergo a single study visit (or two visits within one week if needed) including: best-corrected visual acuity measurement, slit-lamp biomicroscopy, Goldmann applanation tonometry, Humphrey visual field testing (24-2 SITA Standard or SITA Faster), fundus examination with Cup-to-Disc Ratio assessment, fundus photography using a widefield TrueColor Confocal imaging system (iCare DRS Plus), and retinal nerve fiber layer (RNFL) and ganglion cell layer (GCL+IPL) thickness assessment via Cirrus HD-OCT (Carl Zeiss). No investigational drugs or invasive procedures beyond standard clinical practice are involved.

Statistical Analysis For Phase 1, sample size was calculated to detect an expected sensitivity and specificity of 88% with 95% confidence and ±8% precision, yielding 100 subjects per group. For Phase 2, enrollment of 1,000 patients allows estimation of real-world sensitivity and specificity with ±5% precision, assuming a 10% glaucoma prevalence in a tertiary referral center. Both eyes will be included in the analysis using generalized estimating equations (GEE) or mixed-effects models to account for intra-subject correlation. Diagnostic performance metrics (sensitivity, specificity, PPV, NPV, AUC) will be calculated with 95% confidence intervals. Agreement between methods will be assessed using Cohen's kappa; comparisons will use McNemar's test.

Funding This study is funded under the Transforming Health and Care Systems (THCS) partnership, co-funded by the EU Horizon Europe Research and Innovation Programme (Grant Agreement No. 101095654).

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Conditions studied

  • Glaucoma

Keywords

  • Glaucoma
  • Artificial Intelligence
  • Fundus Photography
  • Glaucoma Screening
  • Early Diagnosis
  • Optic Nerve
  • GlaukomAI
03

In context

Glaucoma

1,419 studies on the registry are indexed under Glaucoma; 223 are open to participants now.

This study's planned enrollment of 1,200 is above the median of 61 across 964 interventional studies indexed under Glaucoma.

Browse Glaucoma studies →

Lead sponsor

Fondazione G.B. Bietti, IRCCS is the lead sponsor of 19 studies on the registry; 7 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

Inclusion Criteria for all patients:

  • Age >18 years
  • Freely given obtained prior to study initiation
  • The participant has the capacity to understand and the willingness to follow study instructions and is likely to complete all required visits and procedures

Inclusion Criteria for glaucoma patients:

Patients affected by any type of glaucoma (primary open-angle, primary angle-closure, secondary glaucoma) on pharmacological therapy

Inclusion Criteria for healthy controls:

  • Absence of ocular pathologies
  • IOP \<21 mmHg
  • Visual field and OCT within normal limits
  • Optic disc of normal appearance on clinical evaluation

Exclusion Criteria:

  • Presence of media opacities preventing the acquisition of adequate quality fundus imaging (e.g., advanced cataract, vitreous hemorrhage, severe corneal opacities)
  • Retinal or optic nerve pathologies that could confound the diagnosis (e.g., non-glaucomatous optic neuropathies (ischemic, inflammatory, compressive), moderate-to-severe diabetic retinopathy, advanced macular degeneration, retinal vascular occlusions)
  • Having undergone any ocular surgery in the past 3 months
  • Inability to cooperate with perimetric examination
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

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Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Non-randomized
Intervention model
Single group
Masking
Double (Investigator, Outcomes assessor)
Enrollment
1,200 participants (estimated)

Study arms

  • Other
    Glaucoma Patients

    Participants with diagnosed glaucoma (primary open-angle, primary angle-closure or secondary glaucoma) undergoing standard ophthalmological examination and AI-based image analysis.

    Device: GlaukomAI (Sens-vue GlaukomAI)

  • Other
    Healthy Controls

    Participants without ocular pathology and with normal ophthalmological examination undergoing standard ophthalmological examination and AI-based image analysis.

    Device: GlaukomAI (Sens-vue GlaukomAI)

Interventions

  • DeviceGlaukomAI (Sens-vue GlaukomAI)

    GlaukomAI is an AI-based diagnostic software (Sens-vue ApS) that analyzes standard fundus photographs to detect glaucomatous changes. The system uses deep learning with Convolutional Neural Network and Transformer architecture to evaluate key glaucoma biomarkers, including neuroretinal rim appearance in the inferior and superior sectors. It accepts standard fundus images acquired with conventional fundus cameras or portable devices and provides a diagnostic classification (Referable Glaucoma / Non-Referable Glaucoma) within 2-8 seconds per image. The system is not CE-marked. Fundus images are acquired using a widefield TrueColor Confocal fundus imaging system (iCare DRS Plus), pseudonymized, and uploaded to the GlaukomAI secure platform by an operator blinded to the clinical diagnosis.

06

What researchers measure

Primary outcomes

  1. Diagnostic Accuracy of GlaukomAI - Sensitivity and Specificity

    Sensitivity and specificity of GlaukomAI in the diagnosis of glaucoma, calculated against the gold standard defined by the consensus of a panel of three expert glaucoma specialists based on multimodal assessment (fundus photography, OCT, and visual field). Additional metrics include positive predictive value (PPV), negative predictive value (NPV), and area under the ROC curve (AUC) with 95% confidence intervals. The optimal diagnostic cut-off will be identified using the Youden index.

    Time frame: At enrollment visit (single visit, or two consecutive visits within 1 week)

Secondary outcomes

  1. Referral Accuracy of GlaukomAI vs. Non-Specialist Ophthalmologists

    Sensitivity and specificity of GlaukomAI in recommending referral to a glaucoma specialist (binary output: Referable / Non-Referable), compared to the gold standard and to the independent referral decisions of non-glaucoma-specialist ophthalmologists evaluating the same pseudonymized fundus images.

    Time frame: At enrollment visit

  2. Diagnostic Agreement - Cohen's Kappa

    Diagnostic agreement between GlaukomAI and the gold standard, and between non-glaucoma-specialist ophthalmologists and the gold standard, assessed using Cohen's kappa coefficient (κ). Comparison between diagnostic methods on the same subjects will be performed using McNemar's test.

    Time frame: At enrollment visit

07

Study locations

No study locations are listed for this record.

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References and documents

Publications

  • Li Z, He Y, Keel S, Meng W, Chang RT, He M. Efficacy of a Deep Learning System for Detecting Glaucomatous Optic Neuropathy Based on Color Fundus Photographs. Ophthalmology. 2018 Aug;125(8):1199-1206. doi: 10.1016/j.ophtha.2018.01.023. Epub 2018 Mar 2. PubMed 29506863 ↗
  • Lemij HG, Vente C, Sanchez CI, Vermeer KA. Characteristics of a Large, Labeled Data Set for the Training of Artificial Intelligence for Glaucoma Screening with Fundus Photographs. Ophthalmol Sci. 2023 Mar 17;3(3):100300. doi: 10.1016/j.xops.2023.100300. eCollection 2023 Sep. PubMed 37113471 ↗
  • Michelessi M, Quaranta L, Riva I, Martini E, Figus M, Frezzotti P, Agnifili L, Manni G, Miglior S, Posarelli C, Fazio S, Oddone F. Exploring the gap between diagnostic research outputs and clinical use of OCT for diagnosing glaucoma. Br J Ophthalmol. 2020 Aug;104(8):1114-1119. doi: 10.1136/bjophthalmol-2019-314607. Epub 2019 Nov 15. PubMed 31732524 ↗
  • Oddone F, Lucenteforte E, Michelessi M, Rizzo S, Donati S, Parravano M, Virgili G. Macular versus Retinal Nerve Fiber Layer Parameters for Diagnosing Manifest Glaucoma: A Systematic Review of Diagnostic Accuracy Studies. Ophthalmology. 2016 May;123(5):939-49. doi: 10.1016/j.ophtha.2015.12.041. Epub 2016 Feb 15. PubMed 26891880 ↗
  • Tham YC, Li X, Wong TY, Quigley HA, Aung T, Cheng CY. Global prevalence of glaucoma and projections of glaucoma burden through 2040: a systematic review and meta-analysis. Ophthalmology. 2014 Nov;121(11):2081-90. doi: 10.1016/j.ophtha.2014.05.013. Epub 2014 Jun 26. PubMed 24974815 ↗
  • Quigley HA, Broman AT. The number of people with glaucoma worldwide in 2010 and 2020. Br J Ophthalmol. 2006 Mar;90(3):262-7. doi: 10.1136/bjo.2005.081224. PubMed 16488940 ↗

Individual participant data

Plan to share: No

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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Oct 2026; primary completion for Nov 2027, 13 months later.

Of 229 non-industry interventional studies with no phase under Glaucoma, half reached primary completion within 31 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 55. This study's planned 13 months is below that.

Counting every sponsor, half of 287 studies reached it within 30 months; a quarter within 12 and three quarters within 53.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 19, 2026
First posted
Jun 25, 2026
StartEst.
Oct 2026
Primary completionEst.
Nov 2027
CompletionEst.
May 2028
Last update
Sep 4, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 4, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT07668193
Lead sponsor
Fondazione G.B. Bietti, IRCCS
Responsible party
Sponsor
First posted
Jun 25, 2026
Start date
Oct 2026 (estimated)
Primary completion
Nov 2027 (estimated)
Completion
May 2028 (estimated)
Last update
Sep 4, 2026

Study contacts

Francesco Oddone, MD, PhD
Contact
francesco.oddone@fondazionebietti.it
+39 06 84009442
Carmela Carnevale, MD
Contact
carmela.carnevale@fondazionebietti.it
+39 06 84009442
Francesco Oddone, MD, PhD
principal investigator · IRCCS Fondazione G. B. Bietti, Rome, Italy

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.

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