This creation is a kind of related E.E.G diopter detection system comprising an E.E.G acquisition portion, an Optical devices and a control unit. E.E.G signal of the E.E.G acquisition portion to capture person under test； Its eyesight for corresponding to person under test and there is an allowance signal and a focus signal, when eyesight understands, allowance signal and focus signal are in rise and fall respectively. Optical devices replace the eyeglass of different diopters during optometry. Control unit captures E.E.G signal of each eyeglass in optometry process, the variation of instant analysis allowance signal and focus signal. It is maximum when measuring allowance signal ascensional range, and the E.E.G signal of focus signal fall maximum, that is, detect the eyeglass of the dioptric optical value of the eyesight of corresponding person under test. Therefore to have both E.E.G detection more objective and accurate for this case, the advantages that with applicable what ability to express chump.本創作係有關一種腦波屈光度檢測系統，其包括一腦波擷取部、一光學裝置及一控制部。腦波擷取部用以擷取待測者之腦波訊號；其對應待測者之視力而具有一放鬆度訊號及一專注度訊號，當視力清楚時，放鬆度訊號與專注度訊號分別呈上升與下降。光學裝置在驗光過程中更換不同屈光度之鏡片。控制部擷取每一鏡片在驗光過程之腦波訊號，即時分析放鬆度訊號與專注度訊號之變化。當測得放鬆度訊號上升幅度最大，且專注度訊號下降幅度最大之腦波訊號，即檢測出對應待測者之視力的屈光度值之鏡片。故，本案兼具腦波檢測較為客觀準確，與可適用於表達能力較差者等優點。
