Table 3.
Signs and symptoms | No significant carotid stenosis* | Significant carotid stenosis* | P-value† |
---|---|---|---|
Monocular symptoms only,‡ n (%); n=274 (92.9) | |||
Right eye, n (%) | 108 (49.8) | 31 (55.4) | 0.549 |
Left eye, n (%) | 114 (52.5) | 26 (46.4) | 0.455 |
Visual field impairment,§ n=232 | |||
Entire visual field loss, n (%) | 144 (75.4) | 30 (73.2) | 0.843 |
Partial visual field loss, n (%) | 45 (23.6) | 13 (31.7) | 0.320 |
Light phenomena during or in connection with the AF episode, n (%) n=66 | 31 (58.5) | 5 (38.5) | 0.227 |
Associated symptoms during or in connection with the AF episode | |||
Headache, n (%); n=90 | 30 (40.0) | 4 (26.7) | 0.394 |
Vertigo, n (%); n=80 | 20 (30.8) | 4 (26.7) | 1.000 |
Pain or discomfort in the eye or round the eye, n (%); n=73 | 14 (23.3) | 2 (15.4) | 0.720 |
Diplopia, n (%); n=74 | 7 (11.7) | 0 (0.0) | 0.334 |
Other, n (%); n=102 | 38 (45.2) | 7 (38.9) | 0.795 |
Findings at the eye examination, n=231 | |||
Macular edema, n (%) | 1 (0.5) | 0 (0.0) | 1.000 |
Retinal artery embolus, n (%) | 3 (1.6) | 1 (2.6) | 0.525 |
Notes:
A stenosis of the carotid artery was denoted as significant if its value was ≥70%.
A P-value <0.05 was considered significant. Fisher’s exact test was used.
Some patients hade monocular symptoms from both the right and left eye alternately.
Some patients hade both entire and partial visual field loss and are therefore included in both the groups. Some patients’ had homonym visual field loss. They were included but were neither categorized as entire or partial visual loss.
Abbreviation: AF, amaurosis fugax.