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Ocular haemodynamics in cataractous eyes
Author(s) -
Hopkins Sharon D.
Publication year - 1989
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.1989.tb07087.x
Subject(s) - pulsatile flow , medicine , intraocular pressure , ophthalmology , blood flow , perfusion , hemodynamics , diastole , blood pressure , cardiology
Pulsatile ocular blood flow, systolic and diastolic intraocular pressures and ocular perfusion pressures were measured in a group of 10 patients (mean age 67 ± 3 years) with bilateral senile cataract. Each pair of eyes comprised one phakic and one pseudophakic eye. The results are compared to a group of 8 subjects (mean age 65 ± 4 years) with no apparent ocular pathology. The mean ocular pulsatile blood flow of 394 ± 52 μl min ‐1 in the cataractous eyes was significantly reduced P < 0.001) compared to that of the control group (571 ± 40 μl min ‐1 ). Results were similar for undisturbed cataractous eyes (mean pusatile blood flow = 400 ± 54 μl min ‐1 ) and pseudophakic eyes (mean pulsatile blood flow = 388 ± 51 μl min ‐1 ). The intraocular pressures were within normal limits (systolic intraocular pressure = 19.7 ± 0.7 mmHg, diastolic intraocular pressure = 17.5 ± 0.6 mmHg) as were the ocular perfusion pressures (73.7 ± 0.5 mmHg). The results provide evidence of decreased pulsatile ocular blood flow and associated ischaemia in cataractous eyes.