62678-8
Deprecated PhenX measure - contact biometry
Deprecated
Status Information
- Status
- DEPRECATED
- Comment
- Measure terms were added to match PhenX hierarchy but make it difficult to locate protocols (which contain the set of variables you would use for a particular purpose). They have been deprecated and mapped directly to protocols.
Term Description
Axial length of the eye and central corneal thickness is measured using contact biometry and pachymetry. Depth of the anterior chamber, lens thickness and depth of the posterior chamber can also be obtained. Many eye diseases are known to be associated with either excessively short eyes (nanophthalmos and angle closure glaucoma) or excessively long eyes (degenerative myopia, Stickler's Syndrome). In addition, ocular biometry provides information about the thickness of the lens (for studies of cataract) and the size of the posterior chamber. Axial length of the eye is an essential measurement for selecting the proper intraocular lens when doing cataract surgery. Central corneal thickness influences intraocular pressure measurements (thicker corneas result in artificially higher pressure and thinner corneas in lower pressure). In addition thinner central corneal thickness may be an independent risk factor for optic nerve degeneration in glaucoma.Results of all measurements are then printed. The WG recommends that three readings be taken and recorded from each eye for both axial length and central corneal thickness (measurements in millimeters). The WG recommends that the central corneal thickness-pachymetry measurements be taken first followed by the axial length measurements, as presented in this protocol. This protocol for contact biometry uses the ultrasonic A scan/pachymeter DGH 4000B SBH IOL Computation module. Other instruments can be used to measure ocular biometry including axial length and central corneal thickness. If other instruments are used, the reproducibility of the measurements should be comparable to those acquired with this protocol. In addition, when other instruments are used to collect these measurements, the manufacturer and model of equipment should be recorded. These other devices may require some different steps than are described in this protocol. Investigators should follow the equipment manufacturer's instructions to ensure quality control.
LOINC Names Get Info
- Fully-Specified Name
- PhenX measure - contact biometry:
-: Pt: ^Patient: -: PhenX - Long Common Name
- Deprecated PhenX measure - contact biometry
Part Model Get Info
- Component
- PhenX measure - contact biometry
LP112246-6
- Analyte
- PhenX measure - contact biometry
LP112246-6
- Component Numerator
- PhenX measure - contact biometry
LP112246-6
- Component Numerator Core
- PhenX measure - contact biometry
LP112246-6
- Component Numerator Core Suffix
- NULL
- Component Denominator
- NULL
- Component Denominator Core
- NULL
- Component Denominator Core Suffix
- NULL
- Challenge
- NULL
- Adjustment
- NULL
- Count
- NULL
- Property
- -
LP6769-6
- Time
- Pt
LP6960-1
- Time Core
- Pt
LP6960-1
- Time Modifier
- NULL
- System
- ^Patient
LP310005-6
- System Core
- NULL
- Super System
- Patient
LP6985-8
- Scale
- -
LP7747-1
- Method
- PhenX
LP95333-8
Survey Question
- PhenX.110100
Basic Attributes
- Class
- PANEL.PHENX
- Type
- Clinical
- First Released
- Version 2.36
- Last Updated
- Version 2.46 (DEL)
Language Variants Get Info
| Tag | Language | Translation |
|---|---|---|
| el-GR | Greek (Greece) | Μέτρηση PhenX - βιομετρία επαφής: Synonyms: - PANEL.PHENX PHENX Pt Ασθενής Μέτρηση PhenX - βιομετρία επαφής |
| es-MX | Spanish (Mexico) | Medida PhenX - biometría de contacto: |
| it-IT | Italian (Italy) | PhenX, misura - biometria contatto: Synonyms: Panel PhenX paziente PhenX Punto nel tempo (episodio) |
| ru-RU | Russian (Russian Federation) | PhenX мера - контактная биометрия: Synonyms: Точка во времени; |
| zh-CN | Chinese (China) | PhenX 指标 - 接触式生物测量法: Synonyms: Consensus measures for Phenotypes and eXposures; |
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LOINC Copyright
Copyright © Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://