This study aims to evaluate the effectiveness of glasses-free 3D visual training in improving visual function, visual comfort, and the application ability of visual functions in individuals with presbyopia. The research will assess changes in brain activity related to visual processing using Electroencephalogram(EEG)and Functional near-infrared spectroscopy(NIRS) before and after the training. By examining the impact of stereoscopic stimulation on the functional connectivity of brain regions, the study seeks to provide new insights into the rehabilitation of presbyopia and its underlying mechanisms. The goal is to offer a non-invasive and scientifically supported approach to improving presbyopia treatment, potentially advancing clinical practices and contributing to brain science and ophthalmology
Age 40-60 years old, both sexes;
refractive error -6.0D to 5.0D, astigmatism <2.0D, anisometropia <4.0D;
binocular corrected visual acuity <0.2LogMAR;
stereoscopic threshold ≤100 ';
after lens replacement; People with cataracts, which affect vision, have other eye conditions such that simultaneous vision is not possible;
using any medication known to affect accommodative function or wearing orthokeratology lenses in the past 1 month;
patients with severe systemic disease or severe mental illness;
Other situations where the investigator considers that the subject should not participate in the study for safety reasons or the interests of the patient.