Abstract AMONG the problems confronting the use of contact lenses is the change in optical properties of the cornea which occurs when the conventional contact lens is worn. The effect of contact lenses on the physiology of the cornea is the subject of this communication. When a conventional contact lens is worn, after a variable period the subject experiences development of a haze or mistiness in his vision (Sattler's veil) and sees colored halos or rainbows about light sources. These changes slowly disappear after the contact lens is removed. Since these optical phenomena are definite and subject to measurement, they were selected as the criteria in this study by which the effect of contact lenses on corneal function could be judged and measured. There are many possibilities by which a contact lens might be expected to affect the cornea. 1. The type, shape, and point of contact of a lens with References 1. Dallos, J.: Sattler's Veil , Brit. J. Ophth. 30:607, 1946.Crossref 2. Obrig, T. E.: Solutions Used with Contact Lenses , Arch. Ophth. 38:668 ( (Nov.) ) 1947.Crossref 3. Finkelstein, I. S.: The Biophysics of Corneal Scatter and Diffractiion of Light Induced by Contact Lenses, Thesis, Columbia University, 1951. 4. Obrig.2 Finkelstein.3 5. Cogan, D. G., and Kinsey, V. E.: The Cornea: V. Physiologic Aspects , Arch. Ophth. 28:661 ( (Oct.) ) 1942.Crossref 6. Kinsey, V. E.: Personal communication to the author. 7. Smelser, G. K., and Ozanics, V.: Histology of the Guinea Pig Cornea as Affected by Contact Lens Wear, unpublished data. 8. Duane, T. D.: Metabolism of the Cornea , Arch. Ophth. 41:736 ( (June) ) 1949.Crossref 9. deRoetth, A., Jr.: Respiration of the Cornea , Arch. Ophth. 44:666 ( (Nov.) ) 1950.Crossref 10. (a) Bakker, A.: Some Researches on the Respiration of the Cornea in Albino Rats , Brit. J. Ophth. 31:100, 1947.Crossref 11. (b) Fischer, F. P.: Über den Gasaustausch der Hornhaut mit der Luft , Arch. Augenh. 102:146, 1930. 12. Bruce Wild, Bradford Wild, and Frank Weinert, students at the School of Optometry, Columbia University, served as volunteer subjects in this study. 13. The special contact lenses were made in the Obrig Laboratories, Inc., New York, and fitted by Mrs. Margaret Bergman, of that company. 14. Cover's gas-tight "nod-and-shake" rubber goggles. 15. Sodium hydrosulfite is dissolved in alkali, and a small amount of sodium anthraquinone-β-sulfonate is added. The water-soluble quinone is reduced to a blood-red vat, being left with a great affinity for oxygen. 16. These experiments were conducted under the supervision of Dr. John P. Macnie, Institute of Ophthalmology, Columbia University. 17. Maurice, D. M.: The Permeability to Sodium Ions of the Living Rabbit's Cornea , J. Physiol. 112:367, 1951. 18. Davson, H.: Some Considerations on the Salt Content of Fresh and Old Ox Corneae , Brit. J. Ophth. 33:175, 1949.Crossref
A.M.A. Archives of Ophthalmology – American Medical Association
Published: Mar 1, 1952
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