Posters

Comparison of anterior and posterior polar cataracts with novel Scheimpflug images

Poster Details

First Author: S. Balal UNITED KINGDOM

Co Author(s):    A. Sharma   N. Nesaratnam   J. Than              

Abstract Details

Purpose:

Posterior polar cataracts (PPC) can be difficult to diagnose and are often over-diagnosed; if >4mm they have a higher risk of posterior capsular rupture (PCR). Anterior polar cataracts (APCs) may be easier to diagnose but can affect visual development if they progress in childhood. Scheimpflug imaging allows precise measurement and progression of these cataracts to aid surgical decision making. It also is useful for less experienced clinicians to help diagnose between other types of cataracts such as posterior subcapsular or posterior cortical cataract.

Setting:

Moorfields Eye Hospital, Bedford, United Kingdom

Methods:

We used Pentacam Scheimpflug (Oculus, Wetzlar, Germany) imaging in the diagnosis, documentation and surgical planning of anterior and posterior polar cataract in two separate patients. The APCs are in a 45 year old female patient and PPCs in a 50 year old female. Images obtained were analysed using ImageJ software. Volume and intensity signal of anterior polar cataract was measured to aid surgical planning and progression.

Results:

Images obtained show the similarity between anterior and posterior polar cataract in their anterior and posterior protrusion from the capsular plane. Scheimpflug also allows the precise localisation of each cataract.

Conclusions:

The authors believe this is the first time anterior polar cataract has been imaged with Scheimpflug imaging. APC shows similarities to PPC in anterior and posterior protrusion, perhaps reflecting their common similarity of lens fibre disarray and capsule thinning. Accurate diagnosis, documentation and progression is best measured with Scheimpflug imaging and helps in the surgical planning of these rare cataracts.

Financial Disclosure:

NONE