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July 1986

The Rapid Change of Corneal Curvature in the Neonatal Period and Infancy

Author Affiliations

From the Department of Ophthalmology, Juntendo University School of Medicine, Tokyo.

Arch Ophthalmol. 1986;104(7):1026-1027. doi:10.1001/archopht.1986.01050190084044

• We measured the radii of corneal curvature of premature and mature newborns, using a rearranged automated keratometer and carried out a consecutive study in 18 of the newborns. The mean keratometry value in diopters (D) for seven premature babies was 49.50 D; that for 11 mature babies 47.00 D. The change of corneal curvature over time was observed in eight newborns (16 eyes). It showed rapid change from 49.01 to 45.98 D during 2 to 4 weeks of life and became very slow after 8 weeks of life (44.60 D). It would appear that the change of corneal curvature does not keep pace with the increase of axial length after 12 weeks of life, and constant ocular refractive status probably requires substantial changes in lenticular power.

Larsen JS:  The sagittal growth of the eye: IV. Ultrasonic measurement of the axial length of the eye from birth to puberty . Acta Ophthalmol 1971;49:873-886.Article
Abe S:  The sagittal growth of the eye . Nippon Ganka Gakkai Zasshi 1979;83:214-226.
Tatsugami H, Yamamoto M, Bun J:  The sagittal growth of the eye in children . Folia Ophthalmol Jpn 1980;31:574-578.
Nakada S, Tanaka M, Nakajima A:  Comparison of automated and conventional keratometers . Am J Ophthalmol 1984;97:776-778.
Inagaki Y, Tanaka M, Hirano A, et al:  Rearranged automated keratometer for newborn infants and patients in supine position . Am J Ophthalmol 1985;99:664-666.
Katulak JC, Brungardt T:  Age-related changes in the cornea . J Am Optom Assoc 1980;51:761-765.
Ehlers N, Sorensen T, Bramsen T, et al:  Central corneal thickness in newborns and children . Acta Ophthalmol 1976;54:285-290.Article
York MA, Mandell RB:  A new calibration system for photokeratoscopy: Part 2. Corneal contour measurements . Am J Optom Arch Am Acad Optom 1969;46:818-825.Article
Yamamoto M, Bun J, Okuda T:  Corneal curvature in children . J Jap Contact Lens Soc 1981;23:89-92.
Akiba M:  Studies on the refractive status of the normal infant (Japanese) . Nippon Ganka Gakkai Zasshi 1969;73:363-370.
Gordon RA, Donzis PB:  Refractive development of the human eye . Arch Ophthalmol 1985;103:785-789.Article