Product Code: ILSC2009_301

Damage Thresholds for Scanned Exposure of the Retina
Authors:
Karl Schulmeister, Austrian Research Centers GmbH; Seibersdorf Austria
Bernhard Seiser, Austrian Research Centers Gesmbh; A-2444 Seibersdorf Austria
Johannes Husinsky, Austrian Research Centers Gesmbh; A-2444 Seibersdorf Austria
Mathieu Jean, Austrian Research Centers Gesmbh; A-2444 Seibersdorf Austria
Beate Fekete, Austrian Research Centers Gesmbh; A-2444 Seibersdorf Austria
Letizia Farmer, Austrian Research Centers Gesmbh; A-2444 Seibersdorf Austria
Presented at ILSC 2009

A computer model and bovine retinal explant were used to model thresholds for pulsed and scanned exposure to 532 nm radiation. For exposure to pulse trains with varying peak power the damage threshold is often solely determined by the pulse with the largest peak power, which results in the total-on-time criterium to be not appropriate. The model threshold data for scanned radiation can be used to calculate an appropriate scaling of MPEs and AELs relative to the non-scanning beam.