Local analgesia prevents the cortisol and glycaemic responses to cataract surgery.

@article{Barker1990LocalAP,
  title={Local analgesia prevents the cortisol and glycaemic responses to cataract surgery.},
  author={J. P. Barker and Prof. Dr. med. Peter N. Robinson and Gilli C Vafidis and G R Hart and S M Sapsed-Byrne and George M. Hall},
  journal={British journal of anaesthesia},
  year={1990},
  volume={64 4},
  pages={442-5}
}
We studied the metabolic and hormonal responses to cataract surgery in 18 elderly patients, allocated randomly to receive either general anaesthesia or local analgesia by means of a retrobulbar block. Local analgesia prevented the increases in circulating cortisol and glucose concentrations found in those patients who received general anaesthesia. The results show that complete afferent sensory block of the operative site inhibited endocrine and metabolic responses to ophthalmic surgery.