Cites Source:Thompson, Benjamin Franklin. History of Long Island, p. 2:6 ("The first white child born in the town Jan. 9, 1645, was Caleb Karman, son of John, who was entirely blind, but became an useful man, and the ancestor of a numerous progeny."), but suggests any blindness must have been temporary.
[There is far more wrong with this quote than the blindness. It is directly contradicted by the recorded baptism in Roxbury in 1639, causing some sources to suggest there were two Calebs, the first one having died. Then, a birth as late as 1645 would rule out Caleb being the father of John in 1662 as most sources say. There is a good chance that the statement above applies to Caleb's brother Joshua, not to Caleb. Joshua was born in Hempstead, and Caleb's elder brother John instructs his own sons in his will to care for his [John's] brother Joshua, suggesting Joshua was the disabled one.]