MCOA: Multimodal Corneal Opacity Assessment Dataset

6,272 AS-OCT images + 392 anterior-segment photographs for corneal opacity assessment with expert grading. First large public multimodal AS-OCT + photo dataset for cornea.

At a glance

Field	Value
Short name	mcoa
Full name	MCOA: Multimodal Corneal Opacity Assessment Dataset
Primary category	multimodal
Contained modalities	oct, external_eye
Tasks	classification, grading
Samples	6,664
Classes	4 (Not reported)
Splits	all
Size	8.0 GB
Source-stated terms	CC BY 4.0
Normalized terms	cc-by
Descriptive screening label	Standard label without an explicit NC clause; not a permission finding
Terms scope	dataset_files
Access friction	anonymous_direct
Route backend	Figshare
Availability	available (checked 2026-07-21)
Acquisition support	transfer_tested_partial
Legacy sample-loader status	Metadata and access only

Notes

Anterior-segment expansion; modality otherwise sparse.

Access preflight and acquisition

CLI

# Read-only preflight
eyehub download mcoa --data-dir ./data --dry-run --json

# Explicit transfer, only when preflight reports supported behavior
eyehub download mcoa --data-dir ./data

Python

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

ds = REGISTRY.get_dataset('mcoa')
print(preflight_dataset(ds, './data'))  # no transfer

Upstream page: https://doi.org/10.6084/m9.figshare.28123088.v1

Source-term evidence: https://doi.org/10.6084/m9.figshare.28123088.v1

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{mcoa,
  title  = { MCOA: Multimodal Corneal Opacity Assessment Dataset },
  note   = { Ma X, et al., 'MCOA: A comprehensive multimodal dataset for advancing deep learning in corneal opacity assessment', Scientific Data 2025 },
  year   = { 2025 },
  url    = { https://doi.org/10.6084/m9.figshare.28123088.v1 },
}

Plain text

Ma X, et al., 'MCOA: A comprehensive multimodal dataset for advancing deep learning in corneal opacity assessment', Scientific Data 2025.

Source-stated terms

• Raw source string: CC BY 4.0
• Normalized category: cc-by
• Apparent scope: dataset_files
• Descriptive screening label: Standard label without an explicit NC clause; not a permission finding

⚠️ 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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