Freezing-thawing hysteresis. II. Investigation of human ocular tissues.
The freezing-thawing behavior of cataractous eye lenses and corneas was investigated by 1H-NMR. The corneas have shown hysteresis similarly to the normal lens. No hysteresis could be demonstrated in cataractous lenses. The transparency of lens seems to be correlated with the existence of the freezing-thawing hysteresis.
D001834:Body Water / Q000378:metabolism; D002386:Cataract / Q000378:metabolism; D003315:Cornea / Q000378:metabolism; D005123:Eye / Q000378:metabolism*; D005615:Freezing; D006801:Humans; D007908:Lens, Crystalline / Q000378:metabolism; D009682:Magnetic Resonance Spectroscopy; D013816:Thermodynamics