Instrument inspection clamp.
D018926:Anti-Allergic Agents; D006634:Histamine H1 Antagonists / Q000494:pharmacology*; D009885:Ophthalmology / Q000295:instrumentation*
D018926:Anti-Allergic Agents; D006634:Histamine H1 Antagonists
ANTIHISTAMINICS/effects; OPHTHALMOLOGY/apparatus and instruments