透镜(包括我们眼睛中的水晶体)会对不同的光波产生不同程度的折射。
Lenses, including the lenses in our eyes, bend lights of different wavelengths by unequal amounts.
当眼睛直视前方，光线经由眼角膜及水晶体，而聚焦于视网膜上之点，称为黄斑部。
When the eyes look directly at the front, light through the cornea and the lens, and focus on the retina, known as macular.
当眼睛直视前方，光线经由眼角膜及水晶体，而聚焦于视网膜上之点，称为黄斑部。
When the eyes look directly at the front, light through the cornea and the lens, and focus on the retina, known as macular.
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