Studies on the influence of ochratoxin A on rat lenses.

The influence of ochratoxin A on enzyme activities and on the content of free adenine nucleotides and intermediates of glycolysis in rat lenses was investigated. For a period of eight weeks, five times weekly, albino Wistat rats received ochratoxin A in 0.1% NaHCO3, dosed 1/100 LD50, via stomach tube.

[Vitamin A and carotene concentration in serum in persons with chronic conjunctivitis and pterygium].

In 41 persons with chronic conjunctivitis, 28 persons with pterygium and 61 eye-healthy persons the Vitamin A and carotene blood level have been examined. All persons with chronic conjunctivitis and pterygium have subjective eye disturbances. In persons with chronic conjunctivitis the vitamin A blood level was lower (men 32 mcg%, women 20 mcg%).