TABLE 3.

Final visual acuity 20/50 or better in relation to initial visual acuity. Chi-squared test with Yates correction (p < 0.05)

	Initial visual acuity 20/50 or better	Initial visual acuity 20/200 or worse	Chi-squared test p < 0.05
Natural course—without laser treatment
Gutman56	90% (18/20)	33% (4/12)	Significant
Magargal58	89% (31/35)	14% (4/29)	Significant
Had undergone laser treatment
Wetzig53	63% (5/8)	20% (3/15)	No
Jalkh64	56% (5/9)	9% (1/12)	Significant
Magargal58	75% (30/40)	22% (14/64)	Significant
Lang66	77% (10/13)	13% (2/16)	Significant