Mar-Abr - Sociedade Brasileira de Oftalmologia

108Ribeiro BB, Figueiredo CR, Suzuki ER, Silva FA, Batista WD, Galvão Neto PCONCLUSÃOA presença de um melhor fluxo sangüíneo ocularnos HO portadores de espessura corneana elevada demonstrouser de importância na avaliação dahemodinâmica ocular, podendo predizer um menor riscode desenvolvimento de glaucoma.Entretanto, mais estudos serão necessários paraestabelecer a validade destes achados.SUMMARYPurpose: Evaluate the ocular blood flow in ocularhypertensive patients using the water test of the InstitutoMineiro de Olhos (IMOL). Methods: Forty ocularhypertensive patients were divided in four groupsaccording to corneal thickness and method ofmeasuring intraocular pressure (IOP). They werefollowed before and 30 and 90 minutes after drinking1000 ml of water. In the groups where the IOP weremeasured by Pulsatile Ocular Blood Flow Analyser(POBF), the pulse amplitude, systolic and diastoliccycles and ocular blood flow were evaluated too. Allthe results were considered significatives at thesignification level of 5% (p < 0,05). Results: Duringthe test, the results showed that the patients withpachymetry superior to 580 m had values of the pulseamplitude and ocular blood flow higher than those withthe pachymetry inferior to 580 m. Conclusion: The ocularhipertensives with elevated pachymetry had betterocular blood flow.Keywords: Eye/Blood supply; Ocular hypertension;Intraocular pression water/diagnostic useREFERÊNCIAS1. Quigley HA, Addicks EM. Chronic experimental glaucomain primates. II. Effect of extended intraocular pressureelevation on optic nerve head and axonal transport. InvestOphthalmol Vis Sci. 1980; 19: 137-52.2. Hollows FC, Graham PA. Intraocular pressure, glaucoma andglaucoma suspects in a defined population. Br J Ophthalmol.1966; 50: 570-86.3. Sommer A, Tielsch JM, Katz J. Relationship betweenintraocular pressure and primary open-angle glaucoma amongwhite and black Americans. 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Gunvant P, Baskaran M, Vijaya L. Effect of corneal parameterson measurements using the pulsatile ocular blood flowtonograph and Goldmann applanation tonometer. Br JOphthalmol 2004; 88: 518-22.23. Bhan A, Browning AC, Shah S. Effect of corneal thickness onintraocular pressure measurements with the pneumotonometer,Goldmann applanation tonometer and Tono-pen. InvestOphthalmol Vis Sci. 2002; 43: 1389-92.24. Lauber JK, Boyd TA, Kinnear A. The water provocative test inpreglaucomatous chickens. Can J Ophthalmol. 1979; 14: 176-80.25. Medeiros FA, Sample PA, Weireb RN. Corneal thicknessmeasurements and visual function abnormalities in ocularhypertensive patients. Am J Ophthalmol. 2003;135: 131-137ENDEREÇO PARA CORRESPONDÊNCIABreno Barreto Ribeiro. Alameda Jacarandás, 740Bairro São Luiz – Belo Horizonte – MGCEP 31275060. Fone: 0xx3199738377.E-mail: breno_br2004@yahoo.com.brRev Bras Oftalmol. 2005; 64 (2): 102-108