SIMPLE CATARACT DETERMINATION SYSTEM

Title:

SIMPLE CATARACT DETERMINATION SYSTEM

Document Type and Number:

Japanese Patent JP2015009139

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a determination system, regardless of an inexpensive and simple structure, allowing a person to safely determine the cataract without requiring any expertise.SOLUTION: The simple cataract determination system determines presence/absence of the cataract on the basis of an improvement degree of a contrast visual acuity before/after wearing a contrast improvement lens. The simple cataract determination system includes: a contrast visual acuity chart used for measuring the contrast visual acuity; and a contrast improvement lens that is used when measuring the contrast visual acuity for improving the contrast sensitivity.

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Inventors:

TATEMICHI HEIJI

Application Number:

JP2013199069A

Publication Date:

January 19, 2015

Filing Date:

September 25, 2013

Export Citation:

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Assignee:

TATEMICHI HEIJI

International Classes:

A61B3/06; A61B3/032; G02C13/00

Attorney, Agent or Firm:

Tatsuya Fukami

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