1. American Optometric Association. 1997a. Optometric Clinical Practice Guideline: Care of the Patient with Hyperopia. (1997). http://www.aoa.org/documents/optometrists/CPG-16.pdf American Optometric Association. 1997a. Optometric Clinical Practice Guideline: Care of the Patient with Hyperopia. (1997). http://www.aoa.org/documents/optometrists/CPG-16.pdf
2. American Optometric Association. 1997b. Optometric Clinical Practice Guideline: Care of the Patient with Myopia. (1997). http://www.aoa.org/documents/optometrists/CPG-15.pdf American Optometric Association. 1997b. Optometric Clinical Practice Guideline: Care of the Patient with Myopia. (1997). http://www.aoa.org/documents/optometrists/CPG-15.pdf