The 20-20-20 Rule

Every twenty minutes take a twenty-second break and focus on objects twenty feet away.

“This changes your focal distance from inches to many feet and requires blood flow to brain areas that are not related to constant attention”, says Adam Gazalley in his book The Distracted Mind

Relax all your face muscles to relax (including the jaw muscles) while viewing things further out in the distance

Supplements

Vitamin A
Lutein (葉黃素)
- Research indicates that lutein promotes cognitive functioning in older adults [02:41], enhances cognitive control in middle-aged individuals [03:59], and is associated with superior auditory function in young adults [04:38] and academic achievement in school children [05:03].
- Dark green leafy vegetables, such as kale and spinach, are highlighted as rich sources of lutein, surpassing avocados and eggs in lutein content [05:37].

角膜塑型鏡片

一種硬式眼鏡
週邊離焦理論 (Peripheral Defocus Theory)
Goal: 減少眼軸被拉長的距離 (正圓形 → 橢圓形)