Hammond, Christopher J. Chapter 5 - Emmetropization, refraction and refractive errors: control of postnatal eye growth, current and developing treatments. Hoyt, Creig S (编). Pediatric Ophthalmology and Strabismus (Fourth Edition). London: W.B. Saunders. 2013-01-01: 31–35 [2024-07-11]. ISBN 978-0-7020-4691-9. (原始内容存档于2022-05-02).
Hammond, Christopher J. Chapter 5 - Emmetropization, refraction and refractive errors: control of postnatal eye growth, current and developing treatments. Hoyt, Creig S (编). Pediatric Ophthalmology and Strabismus (Fourth Edition). London: W.B. Saunders. 2013-01-01: 31–35 [2024-07-11]. ISBN 978-0-7020-4691-9. (原始内容存档于2022-05-02).