Dr Nabila Jones, Dr Irene Sisó-Fuertes, Mr Amir Hamid and Dr Clare O’Donnell present a case study showing the patient journey and expected outcomes with the laser blended vision, or Presbyond, technique

First introduced in 2009, laser blended vision or Presbyond (Carl Zeiss Meditec, Jena, Germany), is now being performed as a technique in presbyopia correction surgery.1-3 Presbyond is a LASIK procedure where enhanced micro-monovision is attained. The dominant eye is corrected for distance vision to almost plano and the non-dominant eye is corrected to be slightly myopic for near vision (up to -1.50DS). The micro-monovision strategy is further enhanced by an increase in the depth of field in each eye using a wavefront optimised ablation. Presbyond laser blended vision is an individualised treatment plan based on pre-operative spherical aberration and the ‘functional’ age of the eye. As a result, a customised fusion of the two images for near and distance vision is created for each patient; a so-called blend zone. Typically, the induced anisometropia is low enough for patients to maintain functional stereoacuity while uncorrected, and to not lose best corrected visual acuity.4 

Register now to continue reading

Thank you for visiting Optician Online. Register now to access up to 10 news and opinion articles a month.


Already have an account? Sign in here