A comparison of memory function following local and general anaesthesia for extraction of senile cataract

The memory performance of 60 female patients, scheduled for either local or general anaesthesia and extraction of senile cataract, was investigated. Six subtests of the Wechsler Memory Scale and four items of memory tests according to Luria were performed. One week postoperatively there was a diminution in the performance of the Wechsler Memory Scale and Luria tests. Comparison of the pre- and postoperative diminutions between the local and general anaesthesia groups was statistically significant only in the Luria tests. According to this study general anaesthesia does not affect memory function more profoundly than local anaesthesia supplemented with tranquilizing and/or analgesic drugs. In this respect, the advantages of general anesthesia should be utilized, at least in patients without clearcut contraindications.