mBRSET: Mobile Brazilian Retinal Dataset

5,164 fundus images from 1,291 patients captured with the Phelcom Eyer handheld smartphone-based fundus camera. Labels for DR grading + clinical/demographic prediction.

At a glance

Field	Value
Short name	mbrset
Full name	mBRSET: Mobile Brazilian Retinal Dataset
First published	2024-06-26
Publication date precision	day
Publication date evidence	physionet.org/content
Publication date source field	PhysioNet landing page: Published
Publication date reviewed	2026-09-11
Primary category	fundus
Resource role	current_dataset
Dataset family	mbrset
Contained modalities	fundus
Tasks	grading, classification
Primary reported quantity	5,164 images
Classes	5 (0_no_dr, 1_mild, 2_moderate, 3_severe, 4_proliferative)
Splits	all
Size	3.0 GB
Source-stated terms	PhysioNet Credentialed Health Data License 1.5.0 (Research only)
Normalized terms	research-only
Descriptive screening label	Research or challenge restriction recorded; check source
Terms scope	dataset_files
Access friction	controlled_or_manual
Route backend	PhysioNet
Availability	available (checked 2026-07-21)
Acquisition support	manual_access_blocked
Legacy sample-loader status	Metadata and access only

Reported quantities

Role	Count	Unit	Scope	Basis	Evidence
Primary	5,164	images	Primary quantity reported in the reviewed catalog source	legacy_catalog_field	physionet.org/content

Counts retain their source-reported units. Additional rows can describe components, paired items, or derivative copies and are not automatically added to the primary quantity.

Notes

Same PhysioNet credentialed flow as BRSET. Modality EyeDataHub otherwise lacks (portable smartphone-based fundus).

Documented relationships

These links record source-supported lineage or overlap, not merely similar modality tags.

• brset_mbrset_embeddings is derived from this record: The PhysioNet record supplies precomputed representations for mBRSET images. (evidence)

Access information and download

CLI

# This route requires upstream human action; no transfer starts.
eyehub download mbrset --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('mbrset')
print(preflight_dataset(ds, './data'))  # returns manual_access_blocked

Upstream page: physionet.org/content

Source-term evidence: physionet.org/content

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{mbrset,
  title  = { mBRSET: Mobile Brazilian Retinal Dataset },
  note   = { Wu C, Restrepo D, Nakayama LF, et al., 'A portable retina fundus photos dataset for clinical, demographic, and diabetic retinopathy prediction', Scientific Data 12:323, 2025. doi:10.1038/s41597-025-04627-3 },
  year   = { 2025 },
  url    = { https://physionet.org/content/mbrset/1.0/ },
}

Plain text

Wu C, Restrepo D, Nakayama LF, et al., 'A portable retina fundus photos dataset for clinical, demographic, and diabetic retinopathy prediction', Scientific Data 12:323, 2025. doi:10.1038/s41597-025-04627-3

Source-stated terms

• Raw source string: PhysioNet Credentialed Health Data License 1.5.0 (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.

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