Evaluation of anterior segment photography by compact digital camera for grading of posterior capsule opacification

Session Details

Session Title: Imaging II

Session Date/Time: Tuesday 13/09/2016 | 14:00-16:00

Paper Time: 14:46

Venue: Hall C1

First Author: : S.Naqib UK

Co Author(s): :    F. Winterflood   M. Nanavaty   O. Comyn   C. Offer   A. Perez   A. Simpson   A Lewis  

Abstract Details

Purpose:

Slit lamp based anterior segment cameras are used to photograph posterior capsule opacification (PCO), However, they are expensive and difficult to use, requiring specialist medical imaging training. This study investigates whether using a simple digital camera could be an effective and economic alternative to the conventional anterior segment camera.

Setting:

The Sussex Eye Hospital Outpatient Department of the Brighton and Sussex University Hospital Trust.

Methods:

A cross-sectional study recruiting 100 eyes of 100 patients with PCO from dedicated Nd:YAG laser clinics. One eye from each patient is photographed 3 times: once by the dedicated anterior segment slit lamp camera and twice by a compact digital camera mounted onto a slit lamp with it’s adaptor. The PCO image captured in each image was then graded by a standardized EPCO, a PCO grading software. Bland-Altman’s coefficient of repeatability was tested for the PCO scores obtained from the two images from the compact digital camera and limits of agreements were also assessed.

Results:

There was a good repeatability in the PCO scores obtained with the compact digital camera and there was a good agreement in the PCO scores obtained using the dedicated anterior segment slit lamp camera and compact digital camera.

Conclusions:

This study demonstrates that compact digital cameras could produce images that would allow accurate grading of PCO comparable to conventional dedicated anterior segment slit lamp cameras. Employing compact digital camera system is simple, easier and economic with easy availability and wider utility. This could potentially save money for healthcare systems and provide more accessible and cheaper means of imaging to facilitate research.

Financial Disclosure:

NONE