The lacrimal gland develops from multiple solid ectodermal buds in the anterior superolateral orbit. These buds branch, canalize, and form ducts and alveoli. The lacrimal glands are small and do not function fully until approximately 6 weeks after birth. Thus, newborn infants do not produce tears when crying.
Excerpted from BCSC 2020-2021 series: Section 10 - Glaucoma. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.