Corneal imaging with slit-scanning and Scheimpflug imaging techniques.
Modern anterior segment imaging techniques, such as slit-scanning and Scheimpflug imaging, greatly improved the field of corneal imaging. Devices such as the Orbscan (Bausch & Lomb Surgical, Inc) and, more recently, the Pentacam (Oculus, Inc) and the Galilei (Ziemer Ophthalmic Systems AG) have brought a whole new range of clinical possibilities and sparked interest in the academic community. These new tomographers create three-dimensional models of the cornea and enable the direct measurement of both the anterior and posterior surface elevations. In this paper, we present a review of some available literature on those systems, regarding their optical principles and their performance in current clinical applications.
Oliveira
Cristina M
CM
Centre/Department of Physics, University of Minho, Campus de Gualtar, Braga, Portugal.
Ribeiro
Celina
C
Franco
Sandra
S
D003315:Cornea / Q000473:pathology*; D019781:Corneal Topography / Q000379:methods; D057108:Corneal Wavefront Aberration / Q000175:diagnosis; D003941:Diagnostic Techniques, Ophthalmological; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D008953:Models, Anatomic; D010781:Photography / Q000379:methods*