Table 1 Scoring standard for CT scans according to radiological features
From: Characteristics and scoring method of computed tomography in open-globe injuries
Score | Anterior Segment (A) | Posterior Segment (P) | Globe Contour and Volume (G) |
|---|---|---|---|
0 | Negative finding on CT scans | Negative finding on CT scans | Negative finding on CT scans |
1 | Subtle changes such as alteration or asymmetry in the AC depth, abnormal density within the AC, hypoattenuating lens. | Subtle changes such as air bubbles, spot or sheet increased attenuation less than 1/3 of the posterior segment. | Subtle globe contour irregularity, globe volume shrunk to 4/5 or more of normal. |
2 | Moderate structural disorder such as air bubbles, obvious alteration or asymmetry in the AC depth, abnormal density within the AC, and lens subluxation. | Moderate changes such as air bubbles, increased attenuation with 1/3 to 4/5 of the posterior segment. | Moderate globe contour irregularity, globe volume shrunk to 1/3 to 4/5 of normal. |
3 | Severe structural disorder such as flat AC, contour deformity, lens be absent or displaced. | Homogenous attenuation with 4/5 or more of the posterior segment. | Globe contour be deformed, globe volume shrunk to 1/3 or less of normal. |
4 | Structures in mess, heterogenous dense attenuation with the whole posterior segment. |