Surgery | Vital Few CTQ | Trivial Many CTQ |
I | Experience of refractive surgeon; Type of microkeratome; Hygiene of microkeratome | Cleaning of Patient’s Cornea by Refractive Surgeon; Patient’s Eye Anatomy |
II | Patient’s eye anatomy; experience of anaesthesiologist; experience and attention of strabismus surgeon | Type and Quality of Suture; Attention of assistant surgeon; Attention of nurse |
III | Experience of retina specialist; Attention of retina specialist; Patient’s ocular pathology | Sterilization and hygiene; Dosage of drug/agent; Chemical properties of drug/agent |
IV | Experience of ophthalmic surgeon; Patient’s anatomy; Cooperation of patient during surgery | Sterilization and hygiene; Attention of assistant surgeon; Calibration of equipment; Quality/chemical composition of intraocular material |
V | Experience of ophthalmic surgeon; Patient’s anatomy; Cooperation of patient during surgery | Sterilization and hygiene; Attention of assistant surgeon; Calibration of equipment; Quality/chemical composition of intraocular material |
VI | Experience of vitreoretinal surgeon; Attention of vitreoretinal surgeon; Patient’s anatomy | Sterilization and hygiene; Amount of silicone oil; Amount of gas |
VII | Experience of refractive surgeon; Patient’s anatomy; Calibration of laser power | Patient’s psychology; Sterilization and hygiene; Suction-ring’s pressure |
VIII | Patient’s eye anatomy; Suitability of donor cornea | Experience of ophthalmic surgeon; Sterilization and hygiene; Performance of equipment |
IX | Patient’s eye anatomy; Experience of ophthalmic surgeon | Quality of surgical equipment; Quality and type of suture; Experience of staff |