June 2017
Volume 58, Issue 8
Open Access
ARVO Annual Meeting Abstract  |   June 2017
Measurement of anterior and posterior artificial cornea curvature for anterior segment optical coherence tomography
Author Affiliations & Notes
  • Futoshi Taketani
    Ophthalmology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Hyogo, Japan
  • Mariko Hasegawa
    Ophthalmology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Hyogo, Japan
  • Chika Miyazaki
    Ophthalmology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Hyogo, Japan
  • Kaori Morii
    Asagiri Hospital, Akashi, Japan
  • Footnotes
    Commercial Relationships   Futoshi Taketani, None; Mariko Hasegawa, None; Chika Miyazaki, None; Kaori Morii, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science June 2017, Vol.58, 1119. doi:
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to Subscribers Only
      Sign In or Create an Account ×
    • Get Citation

      Futoshi Taketani, Mariko Hasegawa, Chika Miyazaki, Kaori Morii; Measurement of anterior and posterior artificial cornea curvature for anterior segment optical coherence tomography. Invest. Ophthalmol. Vis. Sci. 2017;58(8):1119.

      Download citation file:


      © ARVO (1962-2015); The Authors (2016-present)

      ×
  • Supplements
Abstract

Purpose : To evaluate accuracy of the anterior segment optical coherence tomography (A-OCT) by measuring artificial corneal shape.

Methods : We made four different types of artificial cornea by polymethylmethacrylate (PMMA).
1. Anterior curvature (R) 7.00mm, Posterior R 6.80mm, Central thickness(CT) 0.50mm
2. Anterior R 7.70, Posterior R 6.80, Central thickness(CT) 0.50
3. Anterior R 8.20, Posterior R 6.80mm, Central thickness(CT) 0.50
4. Anterior R 7.67(aspherical), Posterior Rs: 6.73, 90°, Rf: 6.88, 180°(posterior corneal astigmatism), Central thickness(CT) 0.50
5. Anterior Rs: 7.61, 90°Rf : 7.73, 180°, Posterior Rs: 6.64, 180°, Rf: 7.27, 90°(Anterior and posterior corneal astigmatism was perpendicularly)
6. Anterior Rs: 7.61, 90°Rf : 7.73, 180°, Posterior Rs: 6.64, 90°, Rf: 7.27, 180°(Anterior and posterior corneal astigmatism was parallelly) (unit is mm)
We measured artificial corneal shape in a fluid-filled model constructed to replicate the optical condition of a pseudophakic human eye 1) by A-OCT (CASIA, Tomay, Nagoya, Japan)
1. Taketani F, Hara Y. Characteristics of spherical aberrations in 3 aspheric intraocular lens models measured in a model eye. J Cataract Refract Surg. 2011 ;37:931-6

Results : We revealed the measured anterior and posterior corneal curvatures at 3mm diameter as follow:
1. Anterior R 7.02, Posterior R 6.80 2. Anterior R 7.72, Posterior R 6.82
3. Anterior R 8.25, Posterior R 6.84 4. Anterior R 7.70, Posterior Rs 6.73, Rf 6.89
5. Anterior Rs: 7.64, 90°, Rf : 7.76, 180°, Posterior Rs: 6.31, 4°, Rf: 7.22, 94°
6. Anterior Rs: 7.64, 90°, Rf : 7.78, 180°, Posterior Rs: 6.32, 93°, Rf: 7.20, 3°

Conclusions : We could measure anterior and posterior artificial corneal curvature correctly by A-OCT. We would use this A-OCT to evaluate corneal shapes including posterior corneal astigmatism clinically.

This is an abstract that was submitted for the 2017 ARVO Annual Meeting, held in Baltimore, MD, May 7-11, 2017.

×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×