April 2011
Volume 52, Issue 14
Free
ARVO Annual Meeting Abstract  |   April 2011
3-dimensional Lens Densitometry Measured With Scheimpflug Imaging In Eyes With Cataract
Author Affiliations & Notes
  • Takushi Kawamorita
    Orthoptics and Visual Science, Kitasato University School, Sagamihara, Japan
    Ophthalmology and Visual Science, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
  • Hiroshi Uozato
    Orthoptics and Visual Science, Kitasato University School, Sagamihara, Japan
    Ophthalmology and Visual Science, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
  • Yoshihiko Iida
    Ophthalmology, Kitasato University School of Medicine, Sagamihara, Japan
  • Nanami Nakayama
    Ophthalmology and Visual Science, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
  • Yuko Shibata
    Ophthalmology and Visual Science, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
  • Maki Shindo
    Ophthalmology and Visual Science, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
  • Kimiya Shimizu
    Ophthalmology and Visual Science, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
    Ophthalmology, Kitasato University School of Medicine, Sagamihara, Japan
Investigative Ophthalmology & Visual Science April 2011, Vol.52, 825. doi:
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      Takushi Kawamorita, Hiroshi Uozato, Yoshihiko Iida, Nanami Nakayama, Yuko Shibata, Maki Shindo, Kimiya Shimizu; 3-dimensional Lens Densitometry Measured With Scheimpflug Imaging In Eyes With Cataract. Invest. Ophthalmol. Vis. Sci. 2011;52(14):825.

      Download citation file:


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

      ×
  • Supplements
Abstract

Purpose: : To assess the average lens density (ALD) covering 360 degrees and the nuclear lens density (NLD) using the Scheimpflug densitometry and to determine their correlation with best-corrected visual acuity, and lens grading based on the Emery and Little classification.

Methods: : Fifty three eyes (40 cataract and 13 clear lenses) from 53 subjects (mean 57.3 ± 22.0 years) were included in the study. 360 degrees lens density measurements were performed with Pentacam device (Oculus, Germany), which is comprised of a rotating Scheimpflug camera and short-wavelength slit light. Following lens densitometry metrics were evaluated: NLD at which lens densitometry is greatest on a horizontal cross-section; 3-dimensional (3D), in which a fixed, circular 1.0 mm (NLD 1.0 mm) and 3.0 mm (NLD 3.0 mm) areas of the lens are selected and a mean lens densitometry value given.

Results: : The densities of the lens in all metrics were increasing with higher grades. The NLD in the Emery Grade 0, 1, 2 and 3 were 7.3 ± 2.0, 12.7 ± 1.7, 16.6 ± 5.7, and 22.8 ± 8.1, respectively. The ALD 1.0 mm in the Emery Grade 0, 1, 2 and 3 were 9.4 ± 1.3, 13.3 ± 1.8, 15.4 ± 2.7, and 17.5 ± 2.5, respectively. The ALD 3.0 mm in the Emery Grade 0, 1, 2 and 3 were 9.1 ± 1.2, 12.3 ± 1.5, 14.0 ± 2.2, and 15.7 ± 1.6, respectively. Also, best-corrected visual acuity significantly correlated with NLD (r = 0.635; p < 0.001), ALD 1.0 mm (r = 0.712; p < 0.001) and ALD 3.0 mm (r = 0.742; p < 0.001). .

Conclusions: : The 3-D lens densitometry using Pentacam device could be helpful for follow-up of cataracts, and could be a potential tool for prediction of visual acuity in cataract patients, although further studies are needed to clarify the effects of cataracts on visual performance.

Keywords: aging: visual performance • cataract • imaging/image analysis: clinical 
×
×

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.

×