Data · dataset · 2024
Snellen Chart
Listed in ODISSEI Portal
A Snellen chart is an eye chart that can be used to measure visual acuity.
Description
The Snellen chart is printed with eleven lines of block letters. The first line consists of one very large letter, which may be one of several letters, for example E, H, or N. Subsequent rows have increasing numbers of letters that decrease in size.
A person taking the test covers one eye from 6 metres/20 feet away, and reads aloud the letters of each row, beginning at the top. The smallest row that can be read accurately indicates the visual acuity in that specific eye.
Links
Where it is published
- Dataverse dataset page portal.odissei.nl/dataset.xhtml?persistentId=doi%3A10.60641%2FTF9P-GB90 ↗
landing page · from portal odissei nl
- DOI doi.org/10.60641/tf9p-gb90 ↗
DOI / persistent id · from portal odissei nl
Catalogue records · 1
- Dataverse API portal.odissei.nl/api/datasets/:persistentId/?persistentId=doi%3A10.60641%2FTF9P… ↗
metadata API · from portal odissei nl
Topics
- Stated by source
- Social Sciences
- From keywords
- Medicine & Health · Optometry · Social Science
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ODISSEI Portal | doi:10.60641/TF9P-GB90 | 7 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:field:321203 | mapping · portal odissei nl | vocabulary-mapper@1.0.0 | keywords['optometry'] |
| concepts[field].dataverse_subject:social-sciences | source · portal odissei nl | connector:portal_odissei_nl@1.0.0 | /subjects |
| concepts[field].local:field:medicine-health | mapping · portal odissei nl | connector:portal_odissei_nl@1.0.0 | /subjects |
| concepts[field].local:field:social-science | mapping · portal odissei nl | connector:portal_odissei_nl@1.0.0 | /subjects |
| created_date | source · portal odissei nl | connector:portal_odissei_nl@1.0.0 | |
| description | source · portal odissei nl | connector:portal_odissei_nl@1.0.0 | /description |
| publication_date | source · portal odissei nl | connector:portal_odissei_nl@1.0.0 | |
| title | source · portal odissei nl | connector:portal_odissei_nl@1.0.0 | /name |
| updated_date | source · portal odissei nl | connector:portal_odissei_nl@1.0.0 | |
| version_label | source · portal odissei nl | connector:portal_odissei_nl@1.0.0 |