Gentle Presby eye laser surgery for treatment of presbyopia (age-related hyperopia)

„Monovision is also referred to as Goethe vision since Goethe seems to have been born with this type of vision.“

In near adjustment, also referred to as near accommodation, the flexible lens in the eye dynamically changes its refractive power. When this flexibility of the lens gets lost with age, it also loses its ability to change its refractive power. This process starts pretty early in life. Once it becomes noticeable as of the age of 40, it is referred to as presbyopia or age-related hyperopia. It particularly affects the vision of near objects and thus also reading - first of small print and later also of normal text. With glasses, close-up objects can be seen clearly again but the glasses must be removed to see into the distance and must be re-adjusted several times over the course of progression of the presbyopia.

This eye laser surgery was first introduced by Prof. Dan Reinstein in 2012: Presbyond laser blended vision, in German referred to as "Überblendvisus", is an excimer laser treatment (Presbyond) in which one eye is corrected to 0.0 dpt for distance vision and the other eye is slightly under-corrected to -1.5 dpt for near vision. In addition, a special ablation profile achieves a higher depth of acuity by means of spherical aberrations. Since the visual acuity of both eyes differs only by 1.5 dpt, blended vision is created at a medium distance. Thus, clear vision is possible close up, in the distance and in the intermediary field.

The course of the procedure is the same as in a PRK or a femto-LASIK procedure. Dr. Beyer has translated the treatment's principle to intraocular lenses with his blended vision according to the Düsseldorf formula.