Study on the Effect of Two Ways of Cycloplegia on Biological Parameters of Ciliary Muscle

Inclusion Criteria: * ①Age 3 to 12 years old; * Astigmatism \<2.00D, binocular anisometropia \<3.00D, and the best corrected distance visual acuity is at least 0.8, near vision at least 0.8; * A clear anterior segment image can be obtained through anterior segment OCT; * Have normal thinking and language communication skills, and can actively cooperate with the inspection process; ⑤ No contraindications to atropine treatment such as acute eye inflammation, dry eye, keratoconus, diabetes, etc.; ⑥Written informed consent of the guardian and the child himself Exclusion Criteria: * ① Combined with neurological diseases and have allergies or contraindications to cycloplegic drugs or other drugs; * Intraocular pressure ≥21mmHg; history of photosensitivity, glaucoma, blue eye syndrome, ocular hypertension, and retinal macular lesions or damage; * Patients with chronic eye diseases such as ocular trauma and allergic conjunctivitis; * Those who wear contact lenses and those who use myopia control-related drugs within 1 month; ⑤ Patients with previous varus trichiasis, severe horn, conjunctiva infection and other eye diseases; * Insufficient image quality, such as inconsistent field of view, poor image exposure, inaccurate image focus, stains, shadows or crescent shadows, etc.; * There are systemic diseases; ⑧ Epilepsy, mental disorders unable to communicate normally; ⑨ Other circumstances judged by the investigator to be unsuitable …