Methods and systems for tracking ocular vergence movements of an eye of a person are described. The methods and systems involve placement of flexible/stretchable skin-like electrodes on a person's head and recording the biopotential or electrooculogram of the person as the eye or eyes move to different focal positions, such as near distances, intermediate distances, and far distances. A data acquisition unit can record the electrooculogram and transmit the electrooculogram data to a computer for classification or for further processing. The data can be used with ophthalmic devices to provide a visual change for a person with the ophthalmic device個人眼睛的眼睛輻輳運動之追跡方法及系統被描述，該方法及系統涉及將撓性/可拉伸似皮電極放置在一個人的頭部，並在單眼或雙眼移到不同焦點位置(例如近距離、中距離和遠距離)時記錄該人的生物電位或眼電圖；一數據取得單元可記錄眼電圖，並將眼電圖數據傳送到一電腦以進行分類或其他處理，數據可用於眼睛裝置，而為配帶該眼睛裝置之人提供視覺變化。
