Multifocal intraocular lenses are widely implanted in cataract surgeries for the pure benefit of spectacle independence. But they are associated with a higher prevalence of visual disturbances (e.g. Glare, and halos) and dysphotopsia symptoms and is a major cause of an unhappy patient.
Neuroadaptation is widely recognised to play an important role in the adaptation to multifocal iol’s.
Neuroadaptation is the neural changes induced by the new type of visual experience. It is an important process in the successful outcome of cataract surgery implanted with multifocal intra ocular lenses.
When a multifocal lens is implanted, the patient’s brain is subjected to multiple images which are variously focussed, from the same eye. There is intraocular rivalry and the brain has to choose one of the many images. Newer neurocircuitry channels have to be established. The time frame involved in this process is variable and sometimes it may take more than a year for this process of neuroadaptation.
Statistically, 10% of the patients may never neuro adapt and they are unhappy with their surgical outcome.
Also there is evidence to suggest the role of frontoparietal lobe, the cingulate gyrus and the caudate nucleus areas of brain to be been involved during the process of neuroadaptation. These areas of the brain are concerned with the process of learning, visual attention, cognitive control and adaptive behaviour.
Bynocs has developed a software program based on the theory that brain is neuroplastic at all ages and is amenable to training.
The program is designed in the form of interactive games based on the dichoptic principle. The activities result in removing suppression and improving contrast sensitivity along with perceptual training for a faster neuroadaptation.
Bynocs also has programmes to detect and treat phorias and vergence anomalies. Treating these undetected anomalies enhances the experience of patients implanted with multifocal iol’s.
For undergoing the Bynocs treatment program, the clinic or the patient should have the following
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