Title:
角膜形状解析装置
Document Type and Number:
Japanese Patent JP6739726
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a cornea shape analysis apparatus capable of acquiring information related to predetermined characteristics of a cornea based on a high-order series component calculated by performing series expansion for cornea shape information.SOLUTION: A cornea shape analysis apparatus includes analysis means for performing series expansion in a circumferential direction for cornea shape data. The cornea shape data is designated based on a plurality of concentric circles based on a predetermined position of the cornea. The analysis means acquires information related to predetermined characteristics of the cornea based on a series component of the cornea shape data for which the series expansion has been performed.SELECTED DRAWING: Figure 1
Inventors:
Kazunori Miyata
Keiichiro Minami
Atsushi Otani
Kamo Koji
Chihiro Kato
Keiichiro Minami
Atsushi Otani
Kamo Koji
Chihiro Kato
Application Number:
JP2016083366A
Publication Date:
August 12, 2020
Filing Date:
April 19, 2016
Export Citation:
Assignee:
Tohme Corporation Co., Ltd.
International Classes:
A61B3/107
Domestic Patent References:
| JP2005211632A | ||||
| JP2011167359A | ||||
| JP2004321508A |
Foreign References:
| KR1020080067040A |
Other References:
TOMIDOKORO Atsuo et al.,"Quantitative Analysis of Regular and Irregular Astigmatism Induced by Pterygium",Cornea,1999年 7月31日,Volume 18、Number 4,pp. 412-415
MURTA Joaquim et al.,Measurement and Topography Guided Treatment of Irregular Astigmatism,Astigmatism - Optics, Physiology and Management,2012年 2月29日,Chapter 15、pp. 247-266
MIYAI Takashi et al.,"Visual Acuity Measurements Using Fourier Series Harmonic Analysis of Videokeratography Data in Eyes after Penetrating Keratoplasty",Ophthalmology,2005年 3月31日,Volume 112、Number 3,pp. 420-424
檜垣史郎 他,「翼状片術前後の角膜形状変化」,あたらしい眼科,1997年 1月30日,第14巻、第1号,pp. 77-78
OSHIKA Tetsuro et al.,Quantitative Evaluation of Irregular Astigmatism by Fourier Series Harmonic Analysis of Videokeratography Data,Investigative Ophthalmology & Visual Science,1998年 4月30日,Vol. 39、No. 5,pp. 705-709
TANABE Tatsuro et al.,"Corneal Regular and Irregular Astigmatism Assessed by Fourier Analysis of Videokeratography Data in Normal and Pathologic Eyes",Ophthalmology,2004年 4月30日,Volume 111、Number 4,pp. 752-757
MURTA Joaquim et al.,Measurement and Topography Guided Treatment of Irregular Astigmatism,Astigmatism - Optics, Physiology and Management,2012年 2月29日,Chapter 15、pp. 247-266
MIYAI Takashi et al.,"Visual Acuity Measurements Using Fourier Series Harmonic Analysis of Videokeratography Data in Eyes after Penetrating Keratoplasty",Ophthalmology,2005年 3月31日,Volume 112、Number 3,pp. 420-424
檜垣史郎 他,「翼状片術前後の角膜形状変化」,あたらしい眼科,1997年 1月30日,第14巻、第1号,pp. 77-78
OSHIKA Tetsuro et al.,Quantitative Evaluation of Irregular Astigmatism by Fourier Series Harmonic Analysis of Videokeratography Data,Investigative Ophthalmology & Visual Science,1998年 4月30日,Vol. 39、No. 5,pp. 705-709
TANABE Tatsuro et al.,"Corneal Regular and Irregular Astigmatism Assessed by Fourier Analysis of Videokeratography Data in Normal and Pathologic Eyes",Ophthalmology,2004年 4月30日,Volume 111、Number 4,pp. 752-757