隨著科技的蓬勃發展，智慧型眼鏡的功能越來越多樣化，結合擴增實境或虛擬實境後，在各種專業用途上有很大的助益，特別在娛樂產業、產品展示、教育學習等領域皆可使用智慧型眼鏡呈現豐富的影像。但這些便利及娛樂也伴隨著副作用的產生，過去研究指出長時間使用智慧型眼鏡的確會帶來負面的生理反應、視覺疲勞以及暈眩感等不適，若在這些反應還未完全消除時即從事精密工作（如駕駛交通工具、開刀、操作機台或使用刀具等），發生危險的機率將會大幅上升。在過往針對與視覺相關的工作與休息時間之配置的研究中，僅有視覺工作站（Visual Display Terminal, VDT）之使用與休息時間的建議，因此本研究將探討使用智慧型眼鏡觀看不同時間長度之影片後所需要的恢復時間。
本研究招募15位男性及15位女性研究參與者，年齡介於22歲到30歲之間。使用EPSON BT-200智慧型眼鏡觀看兩種長度（60分鐘及120分鐘）之劇情片，並蒐集閃光融合閾值（Critical Fusion Frequency, CFF）、近點調節值（Near Point Accommodation, NPA）、腦電波（Electroencephalography, EEG；僅限於男性）等客觀數據，同時使用模擬器動暈症問卷（Simulator Sickness Questionnaire, SSQ）及快速動暈症量表（Fast Motion Sickness Scale, FMS）調查研究參與者的主觀感受。在研究參與者觀看影片前先量測一次以上數據，做為恢復的目標參考值，待結束觀看影片後，將請研究參與者卸除智慧型眼鏡並放鬆休息，接著每隔五分鐘量測一次以上的數據、重覆6次，總共休息30分鐘（包含量測時間則為48分鐘），以分析何時能恢復到觀看影片前的水準。
實驗結果發現，男性與女性在觀看影片後所產生的CFF、NPA、SSQ值並無顯著差異。但觀看較長的影片（120分鐘）後，CFF值下降較多，NPA與SSQ值上升較多，亦即更為疲勞、暈眩。分析男性的腦波發現，θ/α值下降與疲勞的產生相關。且觀看120分鐘的影片後，在休息的30分鐘內皆未發現θ/α值有恢復的現象產生，換言之，觀看120分鐘的影片後，需要至少休息時間超過30分鐘，始能恢復視覺疲勞。整體而言，觀看時間較長的影片對人體所產生的負面影響較大，且所需恢復時間較長。考量休息對於疲勞恢復的影響，觀看一個小時的影片後，在休息約20分鐘即可使CFF、NPA及SSQ值幾乎完全恢復至觀看影片前之水準，而觀看兩個小時的影片則需要30分鐘、甚至更長的恢復時間。因此，本研究建議使用者在使用智慧眼鏡觀看一個小時的影片後至少需休息20分鐘，觀看兩個小時的影片後則至少需休息30分鐘，以恢復其生理不適感、確保安全。



關鍵字：智慧型眼鏡、視覺疲勞、疲勞恢復、腦波、動暈症

With the advancement of wearable technology, smart glasses have become more and more popular in recent years. Smart glasses have brought about many benefits in a variety of application. However, previous studies have reported that user have experienced adverse symptoms due to the use of smart glasses. Unfortunately, little research has been performed in work-rest schedules of smart glass. Thus, this study considered the different duration of visual work while using smart glasses to determine the better work-rest schedules in different length of visual work.
Thirty health participants (15 male and 15 female) were recruited to participate in this study. The participants were requested to wear EPSON BT-200 smart glasses to watch a one hour video and a two hours video. Each of 5 minutes of visual experiment procedure, the FMS (Fast Motion Sickness Scale) was taken. After the visual experiment procedure was completed, a 30 minutes rest period was given. The SSQ (Simulator Sickness Questionnaire), CFF (Critical Fusion Frequency), NPA (Near Point Accommodation) and EEG (Electroencephalography) were collected. Each of 5 minutes of rest period, the SSQ, CFF, NPA and EEG were taken to evaluate the recovery time.
The results indicated that the gender effect not significant on SSQ, CFF and NPA. The duration of visual work had significant effect on CFF, NPA and SSQ. A longer duration of visual work lead to higher level of visual fatigue and simulation sickness symptoms.
The EEG results showed that the decrease in the value of θ/α is related to fatigue. Within the 30 minutes rest, it was found that the θ/α value of watching the longer video(120 minutes) did not recover at all. In shorter words, a rest of 30 minutes or more is required. In general, it brings more impact to users and needs a longer rest time to recover after watching a longer video. After watching video for one hour, CFF, NPA and SSQ almost subside to pre-exposure levels following 20 minutes of rest. After watching video for two hour, CFF, NPA and SSQ failed to subside to pre-exposure levels following at least 30 minutes of rest.
In summary, in order to eliminate physical discomfort associated with the use of smart glasses, it is suggested that users should take a rest for at least 20 minutes after watching videos for one hour. In case of watching videos for two hour, the rest time should be at least 30 minutes.

Keywords: smart glasses, eye fatigue, fatigue recovery, EEG, motion sickness

目錄
圖目錄 X
表目錄 XII
第一章 緒論 1
1.1 研究背景與動機 1
1.2 研究目的 2
1.3 研究範圍與限制 3
1.4 研究架構 4
第二章 文獻探討 5
2.1 頭戴式顯示裝置 5
2.2 視覺疲勞 6
2.2.1 閃光融合閾值（Critical Fusion Frequency, CFF） 7
2.2.2 近點調節值（Near Point Accommodation, NPA） 7
2.3 模擬器動暈症（Simulator Sickness） 8
2.3.1 模擬器動暈症問卷（Simulator Sickness Questionnaire, SSQ） 8
2.3.2 快速動暈症量表（Fast Motion sickness Scale, FMS） 10
2.4 腦波 10
2.5 小結 12
第三章 研究方法 13
3.1 前測 13
3.1.1 前測研究參與者 13
3.1.2 實驗設備 14
3.1.3 實驗環境 16
3.1.4 自變項 16
3.1.5 依變項 16
3.1.6 前測流程 18
3.1.7 前測結果 20
3.2 正式實驗 22
3.2.1 研究參與者 22
3.2.2 實驗設備 22
3.2.3 實驗環境 23
3.2.4 自變項 24
3.2.5 依變項 24
3.2.6 實驗流程 27
3.3 數據分析 30
第四章 研究結果 31
4.1 客觀視覺疲勞數據 36
4.1.1 閃光融合閾值 36
4.1.2 近點調節值 38
4.2 主觀問卷數據 40
4.2.1 SSQ-視覺疲勞程度 40
4.2.2 SSQ-動暈症總程度 42
4.2.3 SSQ-噁心感受 44
4.2.4 SSQ-定向障礙程度 46
4.2.5 FMS 48
4.3 腦波 50
4.4 總結 53
第五章 討論 55
5.1 性別 55
5.1.1 視覺疲勞 55
5.1.2 動暈症 55
5.2 影片長度 57
5.2.1 視覺疲勞 57
5.2.2 動暈症 58
5.3 恢復時間 61
5.4 腦波 63
5.5 實驗設備限制與環境限制 64
5.5.1 硬體設備 64
5.5.2 環境 64
第六章 結論與建議 65
6.1 結論 65
6.2 建議 66
參考文獻 68
附錄一、模擬器動暈症問卷 74
附錄二、研究倫理審查委員會核可證明 75

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