Many of us have seen cyclopia either among the lower animals, such as the pig, or in man, and not a few of us have wondered whether such monstrosities were a reversion to some early form in whom there was normally only one eye, or an anomaly due to maldevelopment of the normal two-eyed fetus. Physiologically, it has been determined that without binocular vision man can have little or no idea of depth or comparative distance. With but one eye constructed as ours is everything would appear flat. It would be interesting to examine the data at our command for any evidence of a uniocular man.
On prehistoric foundation, we have the report in the mythology of the ancient Greeks of a race of Cyclops with whom Odysseus tried conclusions. This race of giants very possibly was suggested to the imagination of the Greek by anomalies
JACKSON H. CYCLOPEAN MONSTERSSOME GENERAL OBSERVATIONS, WITH REPORT OF A CASE. JAMA. 1909;LIII(18):1483-1484. doi:10.1001/jama.1909.92550180039002c