Abstract
A comparison was initially done of the O2 flux through the Bausch and Lomb Plano T lens, the Bausch and Lomb U3 lens and the Duragel 75 lens with a sensor on the normal eye. The Bausch and Lamb Plano T lens was the best for use with the sensor probe. The sensor was then used to obtain a comparison with the normal O2 flux through a therapeutic lens on keratoplastic eyes and eyes with bullous keratopathy. Both conditions had a lower O2 consumption than normal; eyes with bullous keratopathy predictably had the lowest value.