Featured series 
Tag: Claudio Punzo
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Nation & World
Fresh insight into retinitis pigmentosa
Rods and cones coexist peacefully in healthy retinas. Both types of cells occupy the same layer of tissue and send signals when they detect light, which is the first step…
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Nation & World
Connie Cepko
In some ways, Connie Cepko’s job has gotten easier. The Harvard Medical School genetics professor is working to uncover the mysteries of the eye, to understand how it develops and…