Waking Up The Brain, Visual Rehabilitation After Cataract Surgery

Brain plasticity is the ability of the nervous system to adapt to new conditions, acquiring new abilities, at any age and for years.

The aim of our work is to study the role of cerebral plasticity in improving visual acuity. 

The selected patients benefited from the treatment based on cerebral stimulation by doing the excercices in our center 

We carried out a prospective study about 10 operated cases of bilateral cataract by the same surgeon spanning one year (09/21to 09/22)
We included in this study any patient with signs of visual discomfort after cataract surgery without complications and with a good anatomical and refractive results
We excluded from this study any patient suffering from ocular diseases associated as surface problem, glaucoma and vitreo retinal disease.
The treatment was based on the neurostimulation of the visual area at the level of the occipital cortex through computer software projecting spots
of Gabor.

Male predominance 7 patients Vs 3 patients, the average age was 65 years.
All patients were implanted with a multifocal implant
The most common symptoms were luminous halos in all patients, visual fluctuation in mesopic vision in 5 patients, eyestrain in binocular vision in 4 patients, decreased sensitivity to contrast in 3 patients.
Patients benefited from brain stimulation sessions of an average of 25 sessions lasting 30 minutes per session one day out of two, with a minimum of 10 sessions and a maximum of 30 sessions.
7 patients noted a regression of symptoms after 15 sessions, 2 patients after 20 sessions and one patient stopped after 10 sessions that showed no improvement.

The principle of cerebral stimulation is based on Gabor's spots which are circles streaked with white and black, and which have been shown to have the exact shape of the receptive fields of neurons in the cortex primary visual. Hubel and Wiesel performed experiments on a cat in subjecting him to a Gabor spot and there was very precise stimulation in the primary visual cortex.

This Principle was developed to be based on the precise localization, orientation and spatial frequency to individually stimulate each neuron then the interaction of the neurons between them makes it possible to characterize the perceived image.

The possibility of improving vision by boosting brain function remains a good alternative to avoid explantation.