Seidel1 was the first investigator to find that the intra-ocular tension of the eyes of cats increased after partial or complete emptying of the anterior chamber. Since that time, the eyes of animals have been studied carefully to observe the behavior of the tension after the puncture of the anterior chamber. The tonometer and manometer were used.2 Attention was drawn to the behavior of human eyes in this respect when Hagen produced his theory of the different modes of regeneration of the aqueous in eyes of human beings and animals. Hagen, himself, reported two cases in 1920; Magitot added a third case. The figures are given in chart 1.
REPORT OF CASES
Case 1 (Hagen).—A. B., aged 17 years, had a piece of copper in bulbo, resulting in iridocyclitis for six months. The tension was 5.5/10.
Case 2 (Hagen).—A woman, aged 65, had a small tumor in the
KRONFELD PC. THE INTRA-OCULAR TENSION FOLLOWING PUNCTURE OF THE ANTERIOR CHAMBER. Arch Ophthalmol. 1929;1(4):450–458. doi:10.1001/archopht.1929.00810010468003
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