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To the Editor:
—It was not our intent in any manner whatever to disparage or detract from the pioneering of Dr. Joseph Dallos in the development of contact lenses. The authors are well familiar with his work of the last 30 years.We appreciate the references offered by Dr. Dallos as admittedly identifying him with the first use of ventilated contact lenses. In the article appearing in the Klinische Monatsblätter für Augenheilkunde, he describes the construction of his lens and the results of its use in 12 patients, 8 of whom had keratoconus, and for these he does illustrate slight improvement in visual acuity; however, with only one exception, the patients could tolerate the lens no more than two to four hours.Tolerance, from the standpoint of both the patient's feeling of comfort and the actual ability of the eye tissues to tolerate the lens, is paramount. Weight influences this
Zekman TN, Krimmer BM. DALLOS CONTACT LENSES. AMA Arch Ophthalmol. 1956;55(3):444. doi:10.1001/archopht.1956.00930030447019
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