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Lensmeter

A lensmeter or lensometer (sometimes even known as focimeter or vertometer) is an optical instrument used in ophthalmology. It is mainly used by optometrists and opticians to measure the back or front vertex power of a spectacle lens and verify the correct prescription in a pair of eyeglasses, to properly orient and mark uncut lenses, and to confirm the…

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History & Measurement

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Overview

History

Advanced semantic analysis

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Map overview Semantic statistics

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Lensmeter

Nodes18
Edges17
Triples7
Avg. degree1.89
Density0.111111
Components1

How this topic connects Entity context

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Lensmeter

Top relations

related to history · 4
Lensmeter → Antoine Claudet, Hermann Snellen, In, Troppman
related to External links · 3
Lensmeter → Archived, Wayback MachineThe, YouTubeLensometry

Important terminology Word statistics

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Important terminology

used lens also prescription power lenses instrument optical measure verify focimeter prism ophthalmology optometrists opticians eyeglasses ophthalmologist optometrist similar first

Entity relationships Subject–Predicate–Object triples

Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.
SubjectPredicateObjectConfidenceSrc
Lensmeterrelated to External linksYouTubeLensometry0.60section
Lensmeterrelated to External linksArchived0.60section
Lensmeterrelated to External linksWayback MachineThe0.60section
Lensmeterrelated to historyIn0.60section
Lensmeterrelated to historyAntoine Claudet0.60section
Lensmeterrelated to historyHermann Snellen0.60section
Lensmeterrelated to historyTroppman0.60section

Related concept clusters Concept neighborhoods

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