The embryologic development of the human eye is a comprehensive subject of study. If one wanders into the more or less speculative fields of genetics to account for the numerous varieties of eyes, even though the differences remain within type, the subject and the interest broaden. It is impossible in this short review to do more than outline the essential embryologic development of the human eye. Such an outline is absolutely necessary, sketchy as it is, in order to discuss clearly, so far as the present knowledge of the subject will permit, the conditions caused by arrest in development during various periods in embryologic growth.
If intrauterine inflammation and birth injury are excluded, it is probably correct to state that most congenital defects are due to aberrations in development. These may consist of underdevelopment, overdevelopment or perverted development. Of these, underdevelopment or arrested development, appears most common. These arrests, though
LYLE DJ. ARRESTS IN EMBRYOLOGIC DEVELOPMENT AS FACTORS IN VISION: BRIEF REVIEW OF THE EMBRYOLOGY OF THE EYE WITH ASSOCIATED ANOMALIES OF ARRESTED DEVELOPMENT. Arch Ophthalmol. 1939;21(6):1037–1054. doi:https://doi.org/10.1001/archopht.1939.00860060147014
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