Anaesthesia and intraocular pressure

Intraocular pressure, retrobulbar anaesthesia and digital ocular massage.

OBJECTIVES To determine the degree of intraocular pressure (IOP) rise following retrobulbar anaesthetic injection as well as the optimal time required for the return of the IOP to the pre-injection level following ocular massage. MATERIALS AND METHODS Using the Perkins hand-held tonometer, the IOP of consecutive adult patients were measured in the operating room before local anaesthetic (3 ml...

Intraocular pressure after peribulbar anaesthesia: is the Honan balloon necessary?

Peribulbar anaesthetic blocks were administered to 70 patients and the intraocular pressure (IOP) measured immediately before and within 1 minute of the injections. In 10 patients IOPs were recorded at 1 minute intervals for 15 minutes after injection and then compared with the IOPs recorded in 60 patients after 5 or 10 minutes of Honan balloon ocular compression. The IOP rose significantly aft...

P 307 The effect of peribulbar anaesthesia on intraocular pressure

Effect on intraocular pressure of local anaesthesia in eyes undergoing intraocular surgery.

A total of 104 eyes undergoing intraocular surgery were studied to investigate the effect on intraocular pressure (IOP) of peribulbar and retrobulbar anaesthesia in eyes with and without glaucoma. Forty eyes had glaucoma. Intraocular pressure was measured before, immediately after, and 5 minutes after injection of local anaesthetic. Mean IOP rose by 5.8 mm Hg at 1 minute (p < 0.01) and 0.7 mm H...

Anaesthesia for intraocular surgery.

Method Premedication.-Pethidine 100 mg., atropine gr. T' 0, 45 minutes pre-operatively. Anaesthetic.-In the anaesthetic room, xylocaine 4 per cent. or some other suitable analgesic solution is used to spray the nose and throat. Tubarine 10 mg., or more up to a maximum of 15 mg., is given intravenously depending on a clinical assessment of the patient; the average dose is 11 mg. (Roche, 1950). T...