RT Journal A1 Redmond RM, Jackson A, Sharkey J T1 POsterior corneal depression JF Archives of Ophthalmology JO Archives of Ophthalmology YR 1990 FD March 1 VO 108 IS 3 SP 436 OP 437 DO 10.1001/archopht.1990.01070050134047 UL http://dx.doi.org/10.1001/archopht.1990.01070050134047 AB