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Evaluation of visual rehabilitation and corneal scatter following corneal cross-linking for keratoconus management, employing multiple anterior segment imaging devices

Poster Details

First Author: I.Kokkali GREECE

Co Author(s):    A. Kanellopoulos   G. Asimellis   C. Roussou        

Abstract Details

Purpose:

To comparatively evaluate corneal scatter measurements employing Scheimpflug imaging densitometry, double-pass wavefront analysis and stray light level measurements following a combined procedure involving partial excimer laser topography-guided normalization and high-irradiance crosslinking for the management of keratoconus.

Setting:

LaserVision.gr Clinical and Research Eye Institute

Methods:

The following devices were employed: (a) the Pentacam, a Scheimpflug imaging device (Oculus Optikgeräte GmbH, Wetzlar, Germany) offering corneal densitometry data, (b) the HD Analyzer (HD Analyzer, Visiometrics, Terrassa, Spain) offering double-pass wavefront analysis point-spread-function analysis, and (c) the C-Quant (Oculus), offering stray-light physiometric data. 25 eyes subjected to a combined procedure involving partial excimer laser topography-guided normalization and high-irradiance crosslinking for the management of keratoconus (Athens Protocol) were examined pre-operatively and 1 month, 3 months and 6 months postoperatively. Correlations between slit-lamp evaluated cornea clarity, visual rehabilitation and corneal scatter data from the different device measurements were assessed.

Results:

Visual rehabilitation and scatter appear to correlate with a return to pre-operative baseline at 3 months postoperatively. Positive correlations between the three devices was noted in regard to ocular scatter.

Conclusions:

Corneal scatter may be a clinical investigative tool for the evaluation of cross-linking interventions. Transient effects may be documented and correlated to visual rehabilitation. FINANCIAL DISCLOUSRE: One or more of the authors travel has been funded, fully or partially, by a company producing, developing or supplying the product or procedure presented

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