LP201208-8
Snellen eye chart
Active
Description
Uncorrected visual acuity is a measurement of clearness of vision while the patient is not using refractive correction. Best corrected visual acuity is acuity measurement using corrective lenses, if usually worn. Visual acuity measured using a Snellen Eye Chart is reported with a numerator of the standard testing distance of 20 and a denominator indicating the distance at which strokes of the smallest letter size viewable subtend at 1 minute of arc. (e.g., 20/10: with a standard testing distance of 20 feet, the strokes of the smallest letter size viewable would subtend 1 minute of arc at 10 feet, or as more commonly explained, what the patient can see at 20 feet, the average population can see at 10 feet). If unable to read letters on a testing chart, visual acuity is described as ranging from ability to count fingers, recognize hand motion, perceive bright light, or unable to perceive light. Source: Regenstrief LOINC
Basic Part Properties
- Part Display Name
- by Snellen eye chart
- Part Type
- Method (Describes the method by which the test was performed)
- Created On
- 2015-10-12
- Construct for LOINC Short Name
- Snellen
LOINC Terminology Service (API) using HL7® FHIR® Get Info
Requests to this service require a free LOINC username and password. Below is a sample of the possible capabilities. See the LOINC Terminology Service documentation for more information.
- CodeSystem lookup
- https:
//fhir.loinc.org/CodeSystem/$lookup?system=http: //loinc.org&code=LP201208-8
Language Variants Get Info
| Tag | Language | Translation |
|---|---|---|
| it-IT | Italian (Italy) | Ottotipo di Snellen |
| zh-CN | Chinese (China) | Snellen 视力表 Synonyms: Snellen 验眼图; |
LOINC Copyright
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