The use of plastic rings to determine the dimensions of ocular inserts for insertion into the conjunctival sac of cattle.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000188:drug therapy*; D003228:Conjunctiva; D003692:Delayed-Action Preparations; D004343:Drug Implants; D005128:Eye Diseases / Q000188:drug therapy / Q000662:veterinary*; D004364:Pharmaceutical Preparations / Q000008:administration & dosage*
D003692:Delayed-Action Preparations; D004343:Drug Implants; D004364:Pharmaceutical Preparations