June 2017
Volume 58, Issue 8
Open Access
ARVO Annual Meeting Abstract  |   June 2017
Comparison of Nonmydriatic Eye Images Acquired Using a Widefield 90° Slit-Scanning Ophthalmoscope and Standard 45° Commercial Fundus Cameras
Author Affiliations & Notes
  • Jennifer Luu
    R&D, Carl Zeiss Meditec, Inc., Dublin, California, United States
  • Conor Leahy
    R&D, Carl Zeiss Meditec, Inc., Dublin, California, United States
  • Mary K Durbin
    R&D, Carl Zeiss Meditec, Inc., Dublin, California, United States
  • Footnotes
    Commercial Relationships   Jennifer Luu, Carl Zeiss Meditec, Inc. (E); Conor Leahy, Carl Zeiss Meditec, Inc. (E); Mary Durbin, Carl Zeiss Meditec, Inc. (E)
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science June 2017, Vol.58, 5455. doi:
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to Subscribers Only
      Sign In or Create an Account ×
    • Get Citation

      Jennifer Luu, Conor Leahy, Mary K Durbin; Comparison of Nonmydriatic Eye Images Acquired Using a Widefield 90° Slit-Scanning Ophthalmoscope and Standard 45° Commercial Fundus Cameras. Invest. Ophthalmol. Vis. Sci. 2017;58(8):5455.

      Download citation file:


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

      ×
  • Supplements
Abstract

Purpose : Studies have shown an increase in the rate of unusable images acquired by standard commercial nonmydriatic fundus cameras for subjects >50 years of age. This study compares the quality and field of view (FOV) of images acquired on nonmydriatic eyes of subjects >50 years old with and without ocular disease using a prototype widefield (WF) slit-scanning ophthalmoscope (SSO) (ZEISS, Dublin, CA) and two standard commercial nonmydriatic fundus cameras.

Methods : 18 nonmydriatic eyes of 9 subjects >50 years of age were imaged using a ZEISS prototype WF SSO with the macula centered. The system acquires 90° FOV images as measured from the cornea. Comparison 45° FOV images were acquired using standard commercial nonmydriatic fundus cameras, VISUCAM® 524 (ZEISS, Jena, Germany) and VISUCAM®PRO NM (ZEISS, Jena, Germany). 8 subjects had type 2 diabetes, 2 eyes had cataracts, and 2 eyes were pseudophakic. Image quality was evaluated by a licensed optometrist. Images were graded as unusable if 1) image artifacts disrupted the ability to evaluate the central 45° FOV or 2) the size of a subject’s pupil prevented the acquisition of a 45° FOV. Evidence of pathology observable in the outer 45° of the WF SSO images was recorded.

Results : Of the nonmydriatic eye images acquired using the prototype WF SSO, 100% (18/18) had usable image quality. Only 67% (12/18) of the nonmydriatic eye images acquired using VISUCAM 524 and VISUCAMPRO NM had usable image quality, with the rest graded as unusable because the pupil size was too small. Only a small pupil mode 30° FOV image could be acquired using VISUCAM 524 and VISUCAMPRO NM. For one nonmydriatic eye image, a hemorrhage was observable in the outer 45° of the WF SSO image. Neither VISUCAM 524 nor VISUCAMPRO NM captured this hemorrhage as it was located outside the 45° FOV.

Conclusions : The ZEISS WF SSO is able to acquire high-quality, WF images of nonmydriatic eyes in subjects >50 years old. Though additional testing is required, the Zeiss WF SSO appears to perform at least as well as the standard 45° fundus cameras when evaluating subjects with diabetes, and may provide additional diagnostic information when pathology lies outside the 45° FOV.

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

 

Nonmydriatic right eye image of a 67 year old subject acquired using a (Left) prototype WF SSO, (Center) VISUCAM 524, and (Right) VISUCAMPRO NM.

Nonmydriatic right eye image of a 67 year old subject acquired using a (Left) prototype WF SSO, (Center) VISUCAM 524, and (Right) VISUCAMPRO NM.

×
×

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.

×