関連ワード:  what is the shape of the eye lens    what is the shape of the eye lens during near vision    what is the shape of the human lens    what is the shape of the human eye lens    what changes the shape of the eye lens    what controls the shape of the eye lens    3. what is the shape of eye lens    what is the shape of the lens in the eye during visual accommodation    what is the shape of the lens when the eye is focused on a near object    muscles which change the shape of the eye lens