OCTA-500: Large-scale OCTA Multi-task Benchmark

500 subjects with OCTA volumes, vessel segmentation, FAZ (foveal avascular zone) annotations, and layer segmentation. Largest public OCTA dataset.

At a glance

Field	Value
Short name	octa_500
Full name	OCTA-500: Large-scale OCTA Multi-task Benchmark
Primary category	octa
Contained modalities	octa
Tasks	segmentation, classification
Samples	500
Classes	4 (Not reported)
Splits	train, val, test
Size	70.0 GB
Source-stated terms	IEEE DataPort Open Access (research only)
Normalized terms	research-only
Descriptive screening label	Research or challenge restriction recorded; check source
Terms scope	dataset_files
Access friction	author_contact
Route backend	Manual (upstream-gated)
Availability	available (checked 2026-07-21)
Acquisition support	manual_access_blocked
Legacy sample-loader status	Metadata and access only

Notes

IEEE login + password-protected zip — email [email protected] for the unlock password.

Access preflight and acquisition

CLI

# This route requires upstream human action; no transfer starts.
eyehub download octa_500 --data-dir ./data --dry-run --json
# Follow the official instructions shown by preflight.

Python

from eyedatahub.acquisition import preflight_dataset
from eyedatahub.datasets.registry import REGISTRY

ds = REGISTRY.get_dataset('octa_500')
print(preflight_dataset(ds, './data'))  # returns manual_access_blocked

Upstream page: ieee-dataport.org/open-access

Source-term evidence: ieee-dataport.org/open-access

Loader status

This catalog record provides metadata and access instructions, but it does not yet include a standard DatasetSample loader. Inspect the source file structure or contribute a loader before using it in a training pipeline.

Citation

BibTeX

@misc{octa_500,
  title  = { OCTA-500: Large-scale OCTA Multi-task Benchmark },
  note   = { Li et al., 'OCTA-500: A retinal dataset for optical coherence tomography angiography study', Medical Image Analysis 2024 },
  year   = { 2024 },
  url    = { https://ieee-dataport.org/open-access/octa-500 },
}

Plain text

Li et al., 'OCTA-500: A retinal dataset for optical coherence tomography angiography study', Medical Image Analysis 2024.

Source-stated terms

• Raw source string: IEEE DataPort Open Access (research only)
• Normalized category: research-only
• Apparent scope: dataset_files
• Descriptive screening label: Research or challenge restriction recorded; check source

⚠️ Source-stated terms, scope, and normalized labels are curation metadata, not legal advice or a permission finding. Review the current official source before transfer or reuse.

Related datasets with shared modalities

• octa_macula_coronal: OCTA Macula Coronal Views (82,560 records, cc-by)
• aroma_octa: AROMA Retinal OCTA Artifact Dataset (281 records, cc-by)
• rose: ROSE: Retinal OCT-Angiography Vessel Segmentation (229 records, cc-by)
• soul_octa: SOUL: OCTA Human-Machine Collaborative Annotation Dataset (178 records, cc-by)
• drac22: DRAC 2022: Diabetic Retinopathy Analysis Challenge (174 records, cc-by)
• ut_fsocta: UTHealth Fundus and Synthetic OCTA Dataset (count not reported records, unknown)