Ultrasonic measurement of the biomeciianical properties of the rabbit sclera

H. Wang, W. V. Chang, L. Moreira, D. Sanchez, N. Kasetsuwan, M. R. Bryant, Peter J McDonnell

Research output: Contribution to journalArticle

Abstract

Purpose. An ultrasonic technique was used to quantify the age effect on the biomechanical properties of the rabbit sciera. Methods. Eight eyes were enucleated from 4 pigmented rabbits. Two of the 4 rabbits were 2 weeks old and two were 6 months old. Intraocular pressure was maintained between 7 and 10 mm Hg for each measurement. Immediately following enucleation, shear wave measurements were performed using a 5 MHz ultrasonic transducer attached to a fused silica buffer block. A pulser/receiver card was used to generate and detect the ultrasonic wave with analog to digital transformation performed by a data acquisition card. Results. The measured shear wave velocity (C,) for the two week old rabbits was 4Q.1±12.7 m/sec, and for the six month old rabbits was 71.7ÜO.S m/sec. The calculated Young's modulus (E) for the young and adult groups were (1.8±1.0)x 106 N/m2 and (5.2±1.6}xl06 N/m2, respectively (p <0.001). Conclusions. The Young's modulus of 2 week old rabbit scieras is less than the 6 month old ones, which suggests the elasticity of the sciera changes with the age of the rabbit.

Original languageEnglish (US)
JournalInvestigative Ophthalmology and Visual Science
Volume38
Issue number4
StatePublished - 1997
Externally publishedYes

Fingerprint

Sclera
Ultrasonics
Rabbits
Elastic Modulus
Elasticity
Transducers
Intraocular Pressure
Silicon Dioxide
Young Adult
Buffers

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Wang, H., Chang, W. V., Moreira, L., Sanchez, D., Kasetsuwan, N., Bryant, M. R., & McDonnell, P. J. (1997). Ultrasonic measurement of the biomeciianical properties of the rabbit sclera. Investigative Ophthalmology and Visual Science, 38(4).

Ultrasonic measurement of the biomeciianical properties of the rabbit sclera. / Wang, H.; Chang, W. V.; Moreira, L.; Sanchez, D.; Kasetsuwan, N.; Bryant, M. R.; McDonnell, Peter J.

In: Investigative Ophthalmology and Visual Science, Vol. 38, No. 4, 1997.

Research output: Contribution to journalArticle

Wang, H, Chang, WV, Moreira, L, Sanchez, D, Kasetsuwan, N, Bryant, MR & McDonnell, PJ 1997, 'Ultrasonic measurement of the biomeciianical properties of the rabbit sclera', Investigative Ophthalmology and Visual Science, vol. 38, no. 4.
Wang H, Chang WV, Moreira L, Sanchez D, Kasetsuwan N, Bryant MR et al. Ultrasonic measurement of the biomeciianical properties of the rabbit sclera. Investigative Ophthalmology and Visual Science. 1997;38(4).
Wang, H. ; Chang, W. V. ; Moreira, L. ; Sanchez, D. ; Kasetsuwan, N. ; Bryant, M. R. ; McDonnell, Peter J. / Ultrasonic measurement of the biomeciianical properties of the rabbit sclera. In: Investigative Ophthalmology and Visual Science. 1997 ; Vol. 38, No. 4.
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AU - Bryant, M. R.

AU - McDonnell, Peter J

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