Traumatic cataracts in children: Visual outcome

Table 1 Age and sex distribution

	Sex		Total
	F	M
0 to 2	6	7	13
3 to 5	27	52	79
6 to 10	74	179	253
11 to 18	88	238	326
Total	195	476	671

F: Female; M: Male.

Table 2 Patient entry and visual outcome at six weeks

Vision	Entry		Total
	Self	ORD
< 1/60	19	0	19
1/60 to 3/60	68	30	98
6/60 to 6/36	74	53	127
6/24 to 6/18	125	55	180
> 6/12 to 6/9	178	53	231
Uncooperative	11	5	16
Total	475	196	671

P = 0.000. ORD: Outreach department.

Table 3 Objects causing the injury

Object	Number (n)	Percentage (%)
Ball	9	1.4
Cattle horn	11	1.7
Cattle tail	2	0.3
Finger	5	0.8
Fire	19	2.8
Glass	7	1.1
Thorn	23	3.4
Others	59	8.8
Sharp object	59	8.8
Stone	72	10.7
Unknown	60	8.8
Stick	345	51.4
Total	671	100.0

Table 4 Activity at the time of the injury

Object	Number (n)	Percentage (%)
Fall	11	1.7
Making a fire	19	2.8
Housework	110	16.4
Employment	38	5.6
Others	85	12.7
Walking	8	1.1
Playing	370	55.1
Travelling	22	3.4
Unknown	8	1.1
Total	671	100.0

Table 5 Age and visual outcome at six weeks

Postoperative vision	Age category				Total
	0 to 2	3 to 5	6 to 10	11 to 18
< 1/60	2	32	76	83	193
1/60 to 3/60	1	3	37	35	76
6/60 to 6/36	7	25	29	19	80
6/24 to 6/18	1	8	35	40	84
6/12 to 6/9	1	8	53	89	151
6/6 to 6/5	1	2	21	60	84
Uncooperative	0	1	2	0	3
Total	13	79	253	326	671

P = 0.000.

Table 6 Pre-treatment and post-treatment vision comparison

Postoperativevision	Preoperative vision						Total
	<1/60	1/60 to 3/60	6/60 to 6/36	6/24 to 6/18	6/12 to 6/9	Uncooperative
< 1/60	182	4	6	0	1	0	193
1/60 to 3/60	70	5	1	0	0	0	76
6/60 to 6/36	55	8	15	1	0	1	80
6/24 to 6/18	71	10	2	1	0	0	84
6/12 to 6/9	125	17	7	1	1	0	151
6/6 to 6/5	64	10	6	4	0	0	84
Uncooperative	2	0	0	0	0	1	3
Total	569	54	37	7	2	2	671

P = 0.000.

Table 7 Comparative study of morphology of cataract and visual outcome

Postoperativevision	Morphology					Total
	Membranous	Rosette	Soft fluffy	Subluxated	Total
< 1/60	45	1	71	2	74	193
1/60 to 3/60	15	2	29	0	30	76
6/60 to 6/36	15	4	29	0	32	80
6/24 to 6/18	20	2	39	0	23	84
6/12 to 6/9	16	6	90	0	39	151
6/6 to 6/5	3	7	53	2	19	84
Uncooperative	0	0	3	0	0	3
Total	114	22	314	4	217	671

P = 0.000.

Table 8 Type of injury and visual outcome at 6 wk

Vision	Category		Total
	Closed	Open
1/60	6	12	18
1/60 to 3/60	19	80	99
6/60 to 6/36	29	97	126
6/24 to 6/18	39	138	177
> 6/12	30	206	236
UC	6	9	15
Total	127	544	671

P = 0.05. UC: Uncorrected vision.

Table 9 Comparison of ocular trauma scorevisual outcome

Final visual outcome	Ocular trauma score					Total
	1	2	3	4	5
UC	2	2	9	0	2	15
No PL	6	13	0	0	0	19
HM, PL	2	27	72	0	0	101
1/200 to 19/200	0	15	112	0	0	127
20/200 to 20/50	0	40	134	4	0	178
≥ 0/40	0	9	218	4	0	233
Total	10	106	545	8	0	671

P = 0.000. OTS: Ocular trauma score; UC: Uncooperative; HM: Hand movement; No PL: No light perception.

Table 10 Comparison of final visual outcome according to ocular trauma score

Visioncategory	OTS-1		OTS-2		OTS-3		OTS-4
	Achieved final visual acuity	OTS Predicted final visual acuity	Achieved final visual acuity	OTS Predicted final visual acuity	Achieved final visual acuity	OTS Predicted final visual acuity	Achieved final visual acuity	OTS Predicted final visual acuity
No PL	75	73	12	16	0	2	0	1
PL HM	25	17	25	26	13.5	11	0	2
1/200 to19/200	0	7	14	14	21.3	15	0	2
20/200 to 20/50	0	2	38	38	24.5	28	50	21
≥ 20/40	0	1	0	4	40.5	44	50	74
P	0.265		0.22		0.22		0.172

Values are percentage of cases. No PL: No light perception.