Cataract-1K: Large-Scale Cataract Surgery Video Dataset

1000 cataract surgery videos from multiple surgeons annotated for 10 surgical phases, instrument segmentation, and tool presence detection. First large-scale cataract surgical video dataset.

At a glance

Field	Value
Short name	cataract1k
Full name	Cataract-1K: Large-Scale Cataract Surgery Video Dataset
First published	Unknown
Publication date precision	Unknown
Publication date evidence	Unknown
Publication date source field	Unknown
Publication date reviewed	Unknown
Primary category	surgical_video
Resource role	current_dataset
Dataset family	cataract1k
Contained modalities	surgical_video
Tasks	phase_recognition, segmentation, detection
Primary reported quantity	1,000 videos
Classes	10 (Incision, Viscoelastic, Capsulorhexis, Hydrodissection, Phacoemulsification, Irrigation-Aspiration, Capsule Polishing, Lens Implant, Viscoelastic Suction, Tonifying-Antibiotics)
Splits	train, val, test
Size	50.0 GB
Source-stated terms	Research only — see Synapse terms
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	Manual (upstream-gated)
Availability	available (checked 2026-07-21)
Acquisition support	manual_access_blocked
Legacy sample-loader status	Standard loader included

Reported quantities

Role	Count	Unit	Scope	Basis	Evidence
Primary	1,000	videos	Primary quantity reported in the reviewed catalog source	legacy_catalog_field	synapse.org

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

Data hosted on Synapse (free registration required). Install synapseclient: pip install synapseclient. Then: synapse get syn53404917

Documented relationships

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

• lmod_cataract_1k is derived from this record: The dataset card identifies Cataract-1K as the source of the processed surgical frames. (evidence)
• lmod_plus is derived from this record: The LMOD+ project page lists nine component datasets, including the five cataloged targets represented by these edges. (evidence)

Access information and download

CLI

# This route requires upstream human action; no transfer starts.
eyehub download cataract1k --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('cataract1k')
print(preflight_dataset(ds, './data'))  # returns manual_access_blocked

Upstream page: synapse.org

Source-term evidence: synapse.org

Loader example

This entry includes a standard DatasetSample loader.

from pathlib import Path
from eyedatahub.datasets.registry import REGISTRY

data_dir = Path('~/.eyedatahub/data').expanduser()
ds = REGISTRY.get_dataset('cataract1k')
samples = ds.load(data_dir, split='test')
for s in samples[:5]:
    print(s.sample_id, s.label, s.image_path)

Citation

BibTeX

@misc{cataract1k,
  title  = { Cataract-1K: Large-Scale Cataract Surgery Video Dataset },
  note   = { Ghamsarian N et al., 'Cataract-1K: Cataract Surgery Dataset for Domain Generalization of Surgical Workflow Analysis', IEEE TMI 2024. https://github.com/Negin-Ghamsarian/Cataract-1K },
  year   = { 2024 },
  url    = { https://www.synapse.org/#!Synapse:syn53404917 },
}

Plain text

Ghamsarian N et al., 'Cataract-1K: Cataract Surgery Dataset for Domain Generalization of Surgical Workflow Analysis', IEEE TMI 2024. https://github.com/Negin-Ghamsarian/Cataract-1K

Source-stated terms

• Raw source string: Research only — see Synapse terms
• 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.

Similar resources by shared modality

• ophora: Ophora-160K: Ophthalmic Surgical Video Instruction Dataset (162,185 video clip instruction pairs, unknown)
• lmod_plus: LMOD+ Multimodal Ophthalmology Benchmark (32,633 annotated instances, unknown)
• insegcat: InSegCat: Instance Segmentation for Cataract Surgery (5,581 annotated images, research-only)
• cadis: CaDIS: Cataract Dataset for Image Segmentation (4,670 images, research-only)
• cataract_lmm: Cataract-LMM: Large-Scale Multi-Source Multi-Task Cataract Surgery Benchmark (3,000 videos, cc-by-nc-nd)
• ophnet2024: OphNet2024: Ophthalmic Surgical Video Dataset (2,278 videos, cc-by-nc-sa)
• lmod_cataract_1k: LMOD-Cataract-1K (2,256 images, cc-by)
• lmod_cataract_1k_cot: Cataract-1K Surgical Analysis Chain-of-Thought Dataset (2,256 images, mit)