Keep your ophthalmic knowledge current with the Academy's 2016-2017 Basic and Clinical Science Course (BCSC). BCSC is the most extensive compilation of ophthalmic scientific research and clinical experience, and it is continually updated by a faculty of more than 80 expert ophthalmologists. Topics covered in Section 3 include optics of the human eye, clinical refraction and ophthalmic instruments. It provides an overview of refractive surgery. Includes numerous figures and learning exercises.