Science and Medicine

Leona Zacharias

Leona Ruth Hurwitz Zacharias (1907 – 1990) was an American biologist and medical researcher whose career spanned several prestigious institutions and diverse fields. She’s best known for her part in pioneering research on retrolental fibroplasia (RLF), now known as retinopathy of prematurity (ROP), which causes incurable blindness in the smallest premature infants. Her work was instrumental in identifying the primary causes of ROP, leading to radically improved neonatal care and outcomes. Zacharias also made substantial contributions to the understanding of human maturation, as measured by, the onset of menstruation and its variability in adolescent girls.

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• ▸History of tattooing
• ▸Kepler-14
• ▸Carlotta Nobile

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