Table 2.

Comparison between UCVA and corrected distance visual acuity according to far 6 m, intermediate 70 cm and near 40 cm (Decimal) Snellen Equivalent meter 6/ (n = 34)

	UCVA	Corrected distance visual acuity	t	p
Far 6 m
Min. – Max. (Decimal)	0.50–1.0	0.60–1.20	9.50*	< 0.001*
Min. – Max. Snellen Equivalent (Feet)	40–20	33–16
Mean (Decimal) ± SD.	0.80 ± 0.16	0.91 ± 0.15
Mean Snellen Equivalent (Feet)	25	22
Median	0.80	0.90
Intermediate 70 cm
Min. – Max. (Decimal)	0.32–1.58	0.32–1.26	2.359*	0.024*
Min. – Max. Snellen Equivalent (Feet)	63–12.5	18.9–16
Mean (Decimal) ± SD.	0.82 ± 0.31	0.77 ± 0.27
Mean Snellen Equivalent (Feet)	25	26
Median	0.79	0.79
Near 40 cm
Min. – Max. (Decimal)	0.32–1.26	0.32–1.26	2.776*	0.009*
Min. – Max. Snellen  Equivalent (Feet)	63–16	63–16
Mean (Decimal) ± SD.	0.87 ± 0.20	0.80 ± 0.22
Mean Snellen Equivalent (Feet)	23	25
Median	0.79	0.79

t: Paired t-test

p: p value for comparing between UCVA and BCVA

*: Statistically significant at p ≤ 0.05