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To the Editor.
—The original literatures on hereditary juvenile retinoschisis had been checked and rechecked! It is Ida Mann who in 1947 suggested for the first time that the vitreous veils in her familial cases were remnants of cyst wall (Trans Ophthalmol Soc UK 67:96, 1947). In 1948, Leffertstra concluded that a great deal of the cysts mentioned in literature in reality have been retinoschisis vesicles (Over orascheuren, Utrecht, Netherlands, Kemink en zoon, 1948, p 214). It is really surprising to read that Dr. Levy claims to have introduced the concept of splitting of the retina in this hereditary condition in 1952. In describing the clinical findings in his patients with "inherited retinal detachment," Dr. Levy (1952) only used the terms "(cystic) retinal detachment" and "vitreous veils" and not the term "retinoschisis," which he only used in reviewing the literature. Before the Ophthalmological Society, United Kingdom (April 1952), Jager, on
Manschot WA. Comments on Dr. Manschot's Study of Retinoschisis-Reply. Arch Ophthalmol. 1973;89(5):440. doi:10.1001/archopht.1973.01000040442025