Development of ocular viscosity characterization method.
Annu Int Conf IEEE Eng Med Biol Soc
; 2016: 5200-5203, 2016 Aug.
Article
em En
| MEDLINE
| ID: mdl-28269436
ABSTRACT
Glaucoma is the second leading cause for blindness. Irreversible and progressive optic nerve damage results when the intraocular pressure (IOP) exceeds 21 mmHg. The elevated IOP is attributed to blocked fluid drainage from the eye. Methods to measure the IOP are widely available, but methods to measure the viscous response to blocked drainage has yet been developed. An indentation method to characterize the ocular flow is developed in this study. Analysis of the load-relaxation data from indentation tests on drainage-controlled porcine eyes showed that the blocked drainage is correlated with increases in ocular viscosity. Successful correlation of the ocular viscosity with drainage suggests that ocular viscosity maybe further developed as a new diagnostic parameter for assessment of normal tension glaucoma where nerve damage occurs without noticeable IOP elevation; and as a diagnostic parameter complimentary to conventional IOP in conventional diagnosis.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Tonometria Ocular
/
Fenômenos Fisiológicos Oculares
Limite:
Animals
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article