Effect of infusion bottle height on lens power after lens refilling with and without a plug.

Purpose: To evaluate the influence of intraoperative infusion bottle height on the power of refilled pig lenses.

Setting: Research Laboratory, Pharmacia Intraocular Lens Manufacturing Plant, Groningen, The Netherlands.

Methods: This study comprised 2 groups of pig eyes.

Polymer refilling of presbyopic human lenses in vitro restores the ability to undergo accommodative changes.

Purpose: Because presbyopia is thought to be accompanied by increased lens sclerosis this study was conducted to investigate whether refilling the capsule of the presbyopic human lens with a soft polymer would restore the ability of the lens to undergo accommodative changes.

Methods: Accommodative forces were applied to natural and refilled lenses by circumferential stretching through the ciliary body and zonular complex. Nine natural lenses and 10 refilled lenses from donors ranging in age from 17 to 60 years were studied.