This invention effects a change in the accomodation of the human lens affected by presbyopia through the use of various reducing agents that change accomodative abilities of the human lens, and/or by applying energy to affect a change in the accomodative abilities of the human lens. This invention both prevents the onset of presbyopia as well as treats it. By breaking and/or preventing the formation of bonds that adhere lens fibres together causing hardening of the lens, the present invention increases the elasticity and distensibility of the lens and/or lens capsule.
