The COMS Grading Scheme: Graded Features
Telangiectasia
Telegiectasias characteristically involve secondary and tertiary branches of retinal vessels, no longer showing a regular branching pattern, but instead taking on aberrant shapes which included twists, tortuosities, loops, fusiform and spherical dilations, brush-like shapes resembling glomeruli, and anastamoses between vessels. Telegiectasias are best seen on early frames of the angiogram; there is minimal or no dye leakage.
Severity
| None: not present | ||||
Mild: total compressed area less than 1/2 disc area (standard photograph 1) click on photo for higher resolution image |
||||
Moderate: total compressed area more than 1/2 disc area, but less than 2 disc areas (standard photograph 2 with angiogram)
|
||||
| Severe: total compressed area more than 2 disc areas | ||||
back to COMS index
