What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActive

LOINC Code 28831-6: Right glasses lens prescription Visual acuity far

Name: LOINC Code 28831-6: Right glasses lens prescription Visual acuity far
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:15.024Z

28831-6 is a LOINC code used to identify Right glasses lens prescription Visual acuity far in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Visual acuity.far. It is commonly used with the system or sample type Glasses prescription.lens.right.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Visual acuity.far. It is commonly used with the system or sample type Glasses prescription.lens.right.

When is it used?

Used in lab systems, EHRs, and clinical data exchange.
May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
Status: ACTIVE

What it does not mean

The code identifies the observation or test, not the actual result.

Key facts

Right glasses lens prescription Visual acuity far
Visual acuity.far
Distance; EYE; EYE.GLASSES; Far VA; Glasses Rx; Length Ratio; Ophthalmology; Ophtho; Ophthy; Point in time; QNT; Quan; Quant; Quantitative; R; R glasses Rx; Random; Refraction; RT; Rx; VA

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Right glasses lens prescription Visual acuity farR glasses Rx Far VAVisual acuity.farEYE.GLASSESLenRtoPtGlasses prescription.lens.right

Frequently asked questions

Code details

Code28831-6

SystemLOINC

Display nameRight glasses lens prescription Visual acuity far

DescriptionVisual acuity.far

Short nameR glasses Rx Far VA

ComponentVisual acuity.far

PropertyLenRto

TimingPt

System (specimen)Glasses prescription.lens.right

ScaleQn

ClassEYE.GLASSES

Example unitsft/ft

StatusACTIVE

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.00

Last changed2.71

Part names

Visual acuity.farLenRtoPtGlasses prescription.lens.rightQnVisual acuity farLength RatioPoint in time (spot)Right glasses lens prescription

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.