It is important to understand the difference between the IIN and NCPDP Processor ID Number (BIN) before applying for a Processor ID Number (BIN).
Sclero-: (Or scler-) A confusing prefix that can refer exclusively to hardness (from the Greek skleros meaning hard) but that can also refer to the sclera of the eye.
sclera. pl. sclerae [L.] the tough, usually white, outer coat of the eyeball, covering all the posterior surface and continuous anteriorly with the cornea. The stroma is banded by loose connective tissue, the lamina fusca internally and episclera externally.