[A new principle in the investigation of the biomechanical properties of the cornea (a preliminary communication)].
A new principle in the determination of mechanical stress distribution in the cornea is proposed on the basis of estimation of the polarization of light emitted by luminescence of strained collagen. It has been found, collagen fiber stress is inversely proportional to corneal stress on the intact cornea of a rabbit, and absolute values are determined by intraocular pressure values. After applying keratotomic incisions, the stress distribution map changes, at the same time, the major stress falls on the residual thickness of the stroma at the bottom of a keratotomic scar and close to this area and the central corneal region is subject to the least pressure.
Avetisov
S E
SE
Bubnova
I A
IA
Novikov
I A
IA
Antonov
A A
AA
Siplivyĭ
V I
VI
D000818:Animals; D001696:Biomechanical Phenomena; D002921:Cicatrix; D003094:Collagen / Q000378:metabolism / Q000502:physiology; D003315:Cornea / Q000378:metabolism / Q000502:physiology* / Q000601:surgery; D003319:Corneal Stroma / Q000502:physiology; D019781:Corneal Topography; D005454:Fluorescence Polarization; D007429:Intraocular Pressure / Q000502:physiology*; D007646:Keratotomy, Radial; D049449:Luminescence; D011817:Rabbits; D013314:Stress, Mechanical; D014065:Tonometry, Ocular
D003094:Collagen