Most people’s vision remains stable until their 40s. At that time, the eye’s natural crystalline lens begins to gradually thicken and harden. Over time, it becomes difficult for the muscles in the eye to focus the lens. This is known as loss of accommodation, or presbyopia, and its earliest symptom is difficulty seeing things up close. Today, loss of accommodation is most commonly treated with reading glasses or bifocal lenses. But, as the crystalline lens continues to age, cataracts, or a clouding of the natural lens, will develop, eventually requiring removal of the natural lens and the implantation of an intraocular lens (IOL). In standard cataract surgery, the IOL that is implanted provides an optical clear medium for light to enter the eye, and often times the lens power can be calculated to reduce some of the dependency on glasses or contacts. However, standard IOL technologies do not address the fundamental issue of presbyopia.
Until recently many people who wished to eliminate their dependence on glasses or contact lenses chose to have Laser Vision Correction (PRK or LASIK). However, PRK and LASIK also do not address the fundamental issue of presbyopia.
An increasingly popular alternative to Laser Vision Correction or standard cataract surgery is PanaSEE Sight Rejuvenation. For nearsighted and farsighted patients who are presbyopic or for those who show signs of cataract development, removing the crystalline lens and replacing it with a new lens can be considered. This alternative has become an even more viable option with lens technologies that may restore accommodation and provide most patients with a continuous range of vision for distance, intermediate, and near.