Abstract
We examined the effect of increased intraocular pressure on the distribution of erythrocyte velocities within capillaries of the cat retina. Retinal capillary networks of 4 cats were observed using gradient index of refraction (GRIN) lens endoscopy near the optic disk and compared to similar measurements in the periphery within the nasal sector of the retina while intraocular pressure (IOP) was varied. Erythrocyte velocity and density were determined using time-based correlation algorithms from 15 second video segments. We determined that retinal capillary flow was insensitive to changes in intraocular pressure for pressures below 30 mmHg retinal blood and stasis was never observed. Above 30 mmHg retinal blood velocity was diminished and the incidence of stasis increased with increasing intraocular pressure.
| Original language | English (US) |
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| Title of host publication | Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings |
| Publisher | IEEE |
| Number of pages | 1 |
| Volume | 2 |
| ISBN (Print) | 0780356756 |
| State | Published - Dec 1 1999 |
| Event | Proceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS) - Atlanta, GA, USA Duration: Oct 13 1999 → Oct 16 1999 |
Other
| Other | Proceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS) |
|---|---|
| City | Atlanta, GA, USA |
| Period | 10/13/99 → 10/16/99 |
ASJC Scopus subject areas
- Bioengineering