source: Their eyes are quite small, and their visual acuity is poor.
target: Their eyes are small, and their visual acuity is poor.
references: Their eyes are small, and their visual acuity is poor. Their eyes are small and they can't see very well. They have small eyes and poor eyesight. They have poor vision and small eyes. Their eyes are quite small, and their sight is poor. Their eyes are very small and their vision is poor. Their eyes are small and their vision is poor. Their eyes are small and they can't see well. Their eyes are small, and they can't see very well. Their eyes are small; their vision is poor.