The elution of membrane associated cells from the SCD after the first, third and fifth days of treatment demonstrated that the SCD bound 29.9, 4.9, and 2.7% of the circulating pool of neutrophils and 21.6, 5.9, and 4.9% of the circulating pool of monocytes, respectively. The gene discussed is SCD; the disease is Schnyder corneal dystrophy.