Hanks’ balanced salt solution (HBSS) was purchased from Gibco
Laboratories (Chagrin Falls, OH); calcium chloride, magnesium chloride,
sodium chloride, glutaraldehyde, sodium hydroxide, and a nonionic
synthetic polymer of sucrose (Ficoll; Type 400) from Sigma
Chemical Co. (St. Louis, MO); sodium phosphate monobasic and sodium
phosphate dibasic from Fisher Scientific (Fairlawn, NJ); diatrizoate
meglumine and diatrizoate sodium (Hypaque-76) from Winthrop
Laboratories (New York, NY); solvents for peptide synthesis from Fisher
Scientific Products (West Chester, PA); the reagents from Perseptive
Biosystems (Framingham, MA); Fmoc-d-Arg(Pbf)-OH and Fmoc-d-Thr(tBu)-OH
from Chem-Impex (Wood Dale, IL); zymosan from Sigma Chemical Co.; and
frozen bovine eyes from Pel-Freez Biologicals (Rogers, AR).