Intraocular Pressure Variation During Weight Lifting

Intraocular pressure variation during weight lifting.

OBJECTIVE To evaluate the effect of weight lifting on intraocular pressure (IOP). METHODS Subjects performed 4 repetitions of a bench press exercise in 2 ways: in mode I (right eyes), the breath was held during the last repetition; in mode II (left eyes), subjects exhaled normally during the last repetition. The IOP was measured with an electronic tonometer during the fourth repetition in bot...

Intraocular pressure during phacoemulsification.

PURPOSE To assess changes in intraocular pressure (IOP) during standard coaxial or bimanual microincision phacoemulsification. SETTING Oregon Eye Center, Eugene, Oregon, USA. METHODS Bimanual microincision phacoemulsification (microphaco) was performed in 3 cadaver eyes, and standard coaxial phacoemulsification was performed in 1 cadaver eye. A pressure transducer placed in the vitreous cav...

Diurnal intraocular pressure variation in pseudoexfoliation syndrome.

PURPOSE To describe and compare the diurnal intraocular pressure (IOP) variation in patients with pseudoexfoliation syndrome (PXS) and normal subjects. METHODS The authors prospectively investigated 19 PXS patients (10 bilateral and 9 unilateral) and 25 age- and sex-matched normal subjects. One eye of each control subject and bilateral PXS patient was selected randomly, and pseudoexfoliative ...

Intraocular Pressure during Continuous Positive Airway Pressure

Intraocular pressure during cardiopulmonary bypass.

Intraocular pressure was measured in 24 patients undergoing elective cardiopulmonary bypass surgery. There was a rapid rise when the bypass circulation began, and this was maintained for about 30 minutes. A simultaneous drop in arterial perfusion pressure and packed cell volume occurred. We suggest that marked haemodilution is responsible for this effect, through increased ocular blood flow and...