References
- Atlas of Primary Eyecare Procedures. Linda Casser, Murray Fingeret. H. Ted Woodcome
- Appleton & Lange 1997, 2nd Edition.
- Clinical Ophthalmology. A systematic approach. Jack J Kanski
- Butterworth-Heinemann 2003, 5th Edition
- The Wills Eye Manual. Office and Emergency Room Diagnosis and Treatment of Eye Disease. Douglas J Rhee and Mark F Pyfer
- Lippincott Williams & Wilkins. 3rd Edition.