Preliminary results of a new intraoperative corneal topography technique.
We describe a new technique for measuring corneal topography intraoperatively and present preliminary results obtained with a prototype instrument. The technique is based on projected-fringe contouring and uses phase-shifting algorithms. Color-coded true topographic maps, obtained during penetrating keratoplasty on human and cadaver eyes, are presented.
Thall
E H
EH
Visionary Systems, Inc., Tucson, Arizona.
Lange
S R
SR
D003315:Cornea / Q000033:anatomy & histology*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D007430:Intraoperative Care; D015948:Keratoplasty, Penetrating; D010865:Pilot Projects; D013536:Suture Techniques