Pig lenses in a lens stretcher: implications for presbyopia treatment.

Purpose: To investigate porcine lenses in a lens stretcher with regard to presbyopia corrective procedures.

Methods: A lens stretching device was designed, which allows to simultaneously determine all relevant geometrical and optical parameters at each stretch position. The setup was used to compare the optical and geometrical lens properties of young slaughter pigs (n = 5) with older sows (n = 7).