Evaluation of alignment of spectacle lenses using a digital camera

Koichiro Yabe, Satoshi Hasebe, Ichiro Hamasaki, Shuhei Kimura, Junko Suemaru, Hiroshi Ohtsuki

Research output: Contribution to journalArticle

Abstract

Purpose : To report the state of alignment of spectacle lenses using a digital still camera. Cases and Method : This study was made on 78 patients who habitually used spectacles to correct refractive errors. The series comprised 41 males and 37 females. Their ages ranged from 4 to 85 years, average 29 years. They were asked to fixate on a still camera placed 50 cm away. Deviation of spectacle lenses from their ideal position were calculated from corneal reflex and markers showing center of the lens. Results : The center of spectacle lens deviated downwards by 4.0±3.6 mm in the right eye and by 3.8±3.5 mm in the left. Distance between lens centers was larger from the interpupillary distance by 1.6±2.0 mm. Conclusion : There are several cases of misalignment between optical axis of the eye and center of the lens. Clinical evaluation of this feature is necessary to provide proper correction of refraction and ease of wearing to the patient.

Original languageEnglish
Pages (from-to)1931-1935
Number of pages5
JournalJapanese Journal of Clinical Ophthalmology
Volume60
Issue number12
Publication statusPublished - 2006
Externally publishedYes

Fingerprint

Lenses
Blinking
Crystalline Lens
Refractive Errors

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Evaluation of alignment of spectacle lenses using a digital camera. / Yabe, Koichiro; Hasebe, Satoshi; Hamasaki, Ichiro; Kimura, Shuhei; Suemaru, Junko; Ohtsuki, Hiroshi.

In: Japanese Journal of Clinical Ophthalmology, Vol. 60, No. 12, 2006, p. 1931-1935.

Research output: Contribution to journalArticle

Yabe, Koichiro ; Hasebe, Satoshi ; Hamasaki, Ichiro ; Kimura, Shuhei ; Suemaru, Junko ; Ohtsuki, Hiroshi. / Evaluation of alignment of spectacle lenses using a digital camera. In: Japanese Journal of Clinical Ophthalmology. 2006 ; Vol. 60, No. 12. pp. 1931-1935.
@article{0a4d2b7dedc545ed8fad3f360dc3801b,
title = "Evaluation of alignment of spectacle lenses using a digital camera",
abstract = "Purpose : To report the state of alignment of spectacle lenses using a digital still camera. Cases and Method : This study was made on 78 patients who habitually used spectacles to correct refractive errors. The series comprised 41 males and 37 females. Their ages ranged from 4 to 85 years, average 29 years. They were asked to fixate on a still camera placed 50 cm away. Deviation of spectacle lenses from their ideal position were calculated from corneal reflex and markers showing center of the lens. Results : The center of spectacle lens deviated downwards by 4.0±3.6 mm in the right eye and by 3.8±3.5 mm in the left. Distance between lens centers was larger from the interpupillary distance by 1.6±2.0 mm. Conclusion : There are several cases of misalignment between optical axis of the eye and center of the lens. Clinical evaluation of this feature is necessary to provide proper correction of refraction and ease of wearing to the patient.",
author = "Koichiro Yabe and Satoshi Hasebe and Ichiro Hamasaki and Shuhei Kimura and Junko Suemaru and Hiroshi Ohtsuki",
year = "2006",
language = "English",
volume = "60",
pages = "1931--1935",
journal = "Japanese Journal of Clinical Ophthalmology",
issn = "0370-5579",
publisher = "Igaku-Shoin Ltd",
number = "12",

}

TY - JOUR

T1 - Evaluation of alignment of spectacle lenses using a digital camera

AU - Yabe, Koichiro

AU - Hasebe, Satoshi

AU - Hamasaki, Ichiro

AU - Kimura, Shuhei

AU - Suemaru, Junko

AU - Ohtsuki, Hiroshi

PY - 2006

Y1 - 2006

N2 - Purpose : To report the state of alignment of spectacle lenses using a digital still camera. Cases and Method : This study was made on 78 patients who habitually used spectacles to correct refractive errors. The series comprised 41 males and 37 females. Their ages ranged from 4 to 85 years, average 29 years. They were asked to fixate on a still camera placed 50 cm away. Deviation of spectacle lenses from their ideal position were calculated from corneal reflex and markers showing center of the lens. Results : The center of spectacle lens deviated downwards by 4.0±3.6 mm in the right eye and by 3.8±3.5 mm in the left. Distance between lens centers was larger from the interpupillary distance by 1.6±2.0 mm. Conclusion : There are several cases of misalignment between optical axis of the eye and center of the lens. Clinical evaluation of this feature is necessary to provide proper correction of refraction and ease of wearing to the patient.

AB - Purpose : To report the state of alignment of spectacle lenses using a digital still camera. Cases and Method : This study was made on 78 patients who habitually used spectacles to correct refractive errors. The series comprised 41 males and 37 females. Their ages ranged from 4 to 85 years, average 29 years. They were asked to fixate on a still camera placed 50 cm away. Deviation of spectacle lenses from their ideal position were calculated from corneal reflex and markers showing center of the lens. Results : The center of spectacle lens deviated downwards by 4.0±3.6 mm in the right eye and by 3.8±3.5 mm in the left. Distance between lens centers was larger from the interpupillary distance by 1.6±2.0 mm. Conclusion : There are several cases of misalignment between optical axis of the eye and center of the lens. Clinical evaluation of this feature is necessary to provide proper correction of refraction and ease of wearing to the patient.

UR - http://www.scopus.com/inward/record.url?scp=33845329138&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33845329138&partnerID=8YFLogxK

M3 - Article

VL - 60

SP - 1931

EP - 1935

JO - Japanese Journal of Clinical Ophthalmology

JF - Japanese Journal of Clinical Ophthalmology

SN - 0370-5579

IS - 12

ER -