PRESBYOPIA OPTOMETRY METHOD BASED ON DIOPTER REGULATION AND CHARGE COUPLE DEVICE IMAGING TECHNOLOGY.
J Biol Regul Homeost Agents
; 29(3): 521-6, 2015.
Article
in En
| MEDLINE
| ID: mdl-26403390
ABSTRACT
With the development of photoelectric technology and single-chip microcomputer technology, objective optometry, also known as automatic optometry, is becoming precise. This paper proposed a presbyopia optometry method based on diopter regulation and Charge Couple Device (CCD) imaging technology and, in the meantime, designed a light path that could measure the system. This method projects a test figure to the eye ground and then the reflected image from the eye ground is detected by CCD. The image is then automatically identified by computer and the far point and near point diopters are determined to calculate lens parameter. This is a fully automatic objective optometry method which eliminates subjective factors of the tested subject. Furthermore, it can acquire the lens parameter of presbyopia accurately and quickly and can be used to measure the lens parameter of hyperopia, myopia and astigmatism.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Optometry
/
Presbyopia
/
Microcomputers
/
Diagnostic Imaging
/
Eye
Type of study:
Diagnostic_studies
/
Prognostic_studies
Limits:
Humans
Language:
En
Journal:
J Biol Regul Homeost Agents
Journal subject:
BIOLOGIA
/
BIOQUIMICA
Year:
2015
Document type:
Article
Affiliation country:
China