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To the Editor.
—I would like to thank Dr. Foos for his thoughtful comment on our article (Giant tear dialysis in the outer layer of retinoschisis. Arch Ophthalmol 88:336, 1972). We do not wish to quibble over "tear," but I think that from an ophthalmoscopic standpoint most clinicians would refer to this as a giant retinal tear. It looked like one. Our use of the term did not necessarily imply or exclude vitreous traction. However, Dr. Foos failed to comment on the fact that one of the holes in the inner layer was a horseshoe tear (see 4 o'clock-hole in the Figure). This is very unusual in retinoschisis and would imply vitreous traction at least to the inner layer. The round holes which are sometimes seen in the inner layer were more consistent with bullous senile retinoschisis. Probably trophic and tractional elements were at work in this case. We
Wilson RS, Dodson J. Retinal Detachment-Reply. Arch Ophthalmol. 1973;89(3):259. doi:10.1001/archopht.1973.01000040261020