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.
In ancient times it was used in the plural to mean the back. sciatic L. sciaticus; originally from the Gr. ischion = the hip. Hence the term applies to anything near, or pertaining to, the hip. sclera Gr. skleros = hard. It is because of its relative toughness that the outer layer of the eye is named the sclera.