Dr.Ramanujan Odeyar, O12912, Dr. Ramanujan B Odeyar
The incidence of post cataract surgery astigmatism is 25 to 30%.In this study Bosh and lumb keratometer was used to determine preoperative and postoperative astigmatism.Post operative readings 6 months after surgery were compared with preoperative readings. The arch of paired LRI incision to be operated was determined by NAPA nomogram .600 micron diamond blade was used for LRI . 98 cases were operated . The difference between K readings was between 0.75 t0 4.25 diaptors.Post operative keratometry reading 6 months after LRI surgery showed 76.54% patients achieving correction within +- 0.25 D indicating LRI is effective procedure.