Lemes, Eduardo Tocchetto Preoperative intravenous clonidine in the surgical treatment of cataract: evaluation of the clinical benefits. [electronic resource] - Revista brasileira de anestesiologia - 342-53 p. digital Publication Type: Journal Article; Randomized Controlled Trial ISSN: 0034-7094 Standard No.: 10.1590/s0034-70942008000400003 doi Subjects--Topical Terms: AgedAntihypertensive Agents--administration & dosageCataract ExtractionClonidine--administration & dosageDouble-Blind MethodFemaleHumansInjections, IntravenousIntraocular Pressure--drug effectsMaleMiddle AgedPreoperative Care