Probing biomechanical properties of the cornea with air-puff-based techniques – an overview

Abstract The cornea is a part of the anterior segment eye that plays an essential optical role in refracting light rays on retina. Cornea also preserves shape eyeball and constitutes mechanical barrier, protecting against factors external environment. structure influences its biomechanical properties ensures appropriate load transfer (that depends environment intraocular pressure) while maintaining (to certain extent) transparency. assessment corneal biomechanics important clinical ophthalmology, e.g. diagnosis ectatic diseases, for precise planning refractive surgery, accurate determination pressure. A standard technique to determine requires application well-defined stimulus (e.g. air puff) performing simultaneous imaging response tissue stimulus. number methods assess have been developed, including ultrasound, magnetic resonance imaging, as visualization modalities. Commercially available include ocular analyzer (ORA) scheimpflug technology (Corvis ST). Currently advanced research conducted using coherence tomography (OCT). extension OCT called elastography (OCE) possesses high potential due speed, noncontact character, resolution images.