Symmetry is expected in nature. Asymmetry is not expected. Symmetry is expected in virtually everything we see. Our brains have been conditioned to expect symmetry and when we view asymmetry it confounds our thought process. When evaluating the eye and associated adnexa the clinician must understand the analysis of symmetry as well as the underlying pathophysiology (tissue alteration) of the disease. Recognition of asymmetry is a tremendous asset in the practice of medical eye care and this discussion will address this principle.
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About the Author(s)
Dr. Alexander (1948-2016) was a 1971 graduate of Indiana University School of Optometry. He served in the US Navy then served as a Professor at the University of Alabama Birmingham School of Optometry. Larry contributed to a number of chapters in textbooks and has published three editions of Primary Care of the Posterior Segment, as well as contributed to the professional literature. He also lectured extensively in the area of ocular and systemic disease. His areas of special interest included dysfunctional tear syndrome, glaucoma and macular degeneration. His lessons are the basis for this site and he will be dearly missed.