Advances in ocular anterior segment imaging

Anterior segment imaging technology is a rapidly advancing field in ophthalmology. New imaging modalities, such as anterior segment optical coherence tomography (OCT), Scheimpflug imaging and magnetic resonance imaging (MRI) have become commercially available. These technologies provide quantitative estimation for the parameters of cornea and anterior chamber by calculating the angle between the iris surface and the posterior corneal surface. The biological images of the scleral spur, ciliary body, ciliary sulcus also are exhibited by these useful tools. The net corneal power can be measured by Pentacam-Scheimpflug, and corneal flap depth following LASIK and anterior chamber width can be measured by anterior segment OCT. All of these devices may herald the dawn of a new era for ophthalmic diagnosis and therapy.