after prophylaxis with silver nitrate , the incidence rates of gonococcal , chlamydial , and nongonococcal , nonchlamydial ophthalmia neonatorum were 0.4 , 0.7 , and 6.2 percent , respectively , whereas after prophylaxis with tetracycline , the rates were 0.1 , 0.5 , and 4.5 percent .
C0037129
silver nitrate
C0029076
ophthalmia neonatorum