Table 1.

Demographic and Clinical characteristics

Demographic/Clinical Variable	Non-ischemic CRVO n=474 patients 492 eyes	Ischemic CRVO
Demographic/Clinical Variable	Non-ischemic CRVO n=474 patients 492 eyes	As first diagnosis n=88 patients 89 eyes	Converted from non-ischemic CRVO n=46 patients^* 47 eyes

Gender (Male)	248 (53%)	46 (52%)	27 (59%)

Age at initial visit
Mean±SD	60±16	69±14	70±13
Range	18–90	30–89	26–100
Distribution by age (count, %)
<45	82 (17%)	8 (9%)	2 (4%)
45-<65	173 (37%)	15 (17%)	11 (24%)
65 and older	219 (46%)	65 (74%)	33 (72%)

Eye involvement
Right eye	229 (48%)	37 (42%)	18 (39%)
Left eye	227 (48%)	50 (57%)	27 (59%)
Both eyes	18 (4%)	1 (1%)	1 (2%)

Follow-up (of those with at least 1 month follow-up)	(n=422 eyes)	(n=80 eyes)	(n=46 eyes)
Median (25^th-75^th percentile) Minimum-Maximum	2.1 (0.5–5.1) years (1 month-28 years)	2.2 (0.7–6.0) years (1 month-15 years)	4.2 (1.1–5.5) years (1 month-19 years)

Systemic Conditions
Arterial hypertension	201 (42%)	44 (50%)	19 (41%)
Ischemic heart disease	53 (11%)	16 (18%)	8 (17%)
Diabetes mellitus	42 (9%)	17 (19%)	6 (13%)
TIA/CVA	23 (5%)	2 (2%)	6 (13%)
	(n=453)	(n=80)	(n=45)

Smoked current/past	202 (45%)	33 (41%)	21 (47%)

CRVO=Central retinal Vein Occlusion

47 eyes (46 patients) with ischemic CRVO that converted from non-ischemic CRVO are also included among the eyes with non-ischemic CRVO

SD=Standard deviation

@ Follow-up of at least 3 months.

CVA = Cerebrovascular accident; TIA = Transient ischemic attack