Low concentration atropine eye drops are commonly used in ophthalmology to dilate the pupil and paralyze the ciliary muscle. After using low concentration atropine, patients can experience a decrease in vision, which may be caused by the drug leading to paralyzing the ciliary muscle. Since the ciliary muscle plays an important role in eye regulation, when atropine paralyzes the ciliary muscle, the eye temporarily loses its regulation function, and seeing close up will become blurred, resulting in vision loss. Atropine is effective in preventing myopia because of its ability to paralyze and relax the ciliary muscle. Adverse reactions such as photophobia, tearing and blurred vision may occur when patients use low concentration of atropine eye drops. It is recommended that patients use Low Concentration Atropine Eye Drops under the guidance of a professional doctor, and should not use the drug on their own to avoid adverse consequences.