Version 2.78

Status Information

Status
TRIAL

Term Description

The axis indicates the angle in degrees of one of two major meridians the prescribed cylindrical power is in. Which major meridian is referenced is indicated by the cylindrical correction being in plus or minus notation. The axis is measured on an imaginary semicircle with a horizontal baseline that starts with zero degrees in the 3 o'clock (or east) direction, and increases to 180 degrees in a counter-clockwise direction.
Source: Regenstrief LOINC

Part Description

LP418239-2   Axis eye
The axis is the orientation of the placement of the cylinder for astigmatism correction. The axis can be anywhere from 1 to 180 degrees. Source: Regenstrief LOINC

Fully-Specified Name

Component
Cylinder axis
Property
Angle
Time
Pt
System
Eye.left
Scale
Qn
Method

Additional Names

Short Name
Cylinder axis L eye

Survey Question

Source
PX111401070000

Basic Attributes

Class
PHENX
Type
Clinical
First Released
Version 2.36
Last Updated
Version 2.68
Change Reason
Updated the PhenX ID from "PhenX.<ID>" to "PX<ID>" in Survey Question Source field to align with the variable identifier used in the PhenX Toolkit.

Member of these Panels

LOINC Long Common Name
62677-0 PhenX domain - Ocular

Language Variants Get Info

Tag Language Translation
es-MX Spanish (Mexico) Eje del cilindro:Ángulo:Punto temporal:Ojo izquierdo:Cuantitativo:
it-IT Italian (Italy) Asse cilindro:Angolo:Pt:Occhio.sinistro:Qn:
Synonyms: Occhio Sinistro PhenX Punto nel tempo (episodio)
ru-RU Russian (Russian Federation) Цилиндра ось:Угол:ТчкВрм:Глаз.левый:Колич:
Synonyms: Количественный Точка во времени;Момент
zh-CN Chinese (China) 柱镜轴位:角度:时间点:眼睛.左侧:定量型:
Synonyms: Consensus measures for Phenotypes and eXposures;PhenX;暴露;接触;表型与暴露共识指标;表现型与暴露共识指标;表型与暴露公认指标 L LT 几何学角度;几何角度 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 向左 向左侧 左 左侧（Left，LT，L） 左侧眼睛;左眼 左向 左边 时刻;随机;随意;瞬间 柱镜轴;柱镜轴线;柱面镜片轴;圆柱轴;圆柱体轴;圆柱体轴线 柱面镜片;圆柱;圆柱体 目;眼;眼部

Example Units

Unit Source
deg Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=65895-5