Abstract
We reviewed the axial length measurements of 1000 cataractous eyes ranging from 20.9 mm to 29.4 mm with an average value of 23.45 mm. Average measurements were 3.4 mm for the anterior chamber depth, 4.43 mm for the lens thickness and 15.62 mm for the vitreous cavity. Comparative studies revealed that an increase in axial length is due to an increase in the anterior chamber and vitreous cavity’s depth and a concommitant decrease in the lens thickness.
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References
Jansson F. 1963. Determination of the axis length of the eye roentgenologically and by ultrasound. Acta Ophthalmol 41: 1–11.
Jansson F. 1963. Measurement of intraocular distances by ultrasound and comparison between optical and ultrasonic determination of the depth of the anterior chamber. Acta Ophthalmol 41: 25–61.
Sorsby A. 1971. Epidemiology of refraction. Int Ophthalmol Clin 11: 1–18.
Fledelius H, Alsbirk PH. 1975. Comparative ultrasound oculometry. TAU-measurements of thirty eyes with three standard equipments. Bibl Ophthal 83: 263–268.
Hoffer KJ. 1980. Biometry of 7500 cataractous eyes. Amer J Ophthalmol 90: 360–368.
Shammas HJ. 1983. Manual versus electronic measurement of the axial length. In Ultrasonography in Ophthalmology, Proceedings of the 1982 Ninth SIDUO Congress. Documenta Ophthalmol. 38: 225–229.
Shammas HJ. 1984. Atlas of Ophthalmic Ultrasonography and Biometry, pp. 273–285. St. Louis. The C.V. Mosby Co. Publishers.
Jansson F, Kock E. 1962. Determination of the velocity of ultrasound in the human lens and vitreous. Acta Ophthalmol 40: 420–433.
Shammas HJ. Immersion versus contact technique for axial length measurement. Amer Intra-Ocular Imp Soc: In print.
Shammas HJ. 1982. The fudged formula for intraocular lens power calculations. Amer Intra-Ocular Impl Soc 8: 350–352.
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© 1987 Martinus Nijhoff/Dr W. Junk Publishers, Dordrecht
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Shammas, H.J. (1987). A-scan biometry of 1000 cataractous eyes. In: Ossoinig, K.C. (eds) Ophthalmic Echography. Documenta Ophthalmologica Proceedings Series, vol 48. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3315-6_12
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DOI: https://doi.org/10.1007/978-94-009-3315-6_12
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-7988-4
Online ISBN: 978-94-009-3315-6
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