Visual rehabilitation of patients with corneal diseases

BMC Ophthalmology

Table 4 Low Vision aids of the patients grouped for grade of visual impairment

LVA	WHO Grade 1–2 (n = 28)	WHO Grade 3–4 (n = 6)	P
No LVAs	11% [3]	–	0.93^a
Insufficient LVAs	18% [5]	33.3% [2]	0.21^a
Optical LVAs	89% [24]	83.3% [5]	0.55^a
Quantity per patient	1 [1,6]	1 [0,2]	0.46^b
Electronic LVAs	25% [6]	88.3% [5]	0.01^a
Quantity per patient	0 [0,3]	1 [0,3]	0.04^b
CCTV	14% [4]	66.7% [4]	0.02^a
p-EVES	14% [4]	50% [3]	0.09^a
Consumer electronics	46% [12]	83.3% [5]	0.18^a
Quantity per patient	0 [0,4]	1 [0,2]	0.34^b
Smartphone	46% [12]	83.3% [5]	0.18^a
Tablet	21% [40]	50% [3]	0.31^a
Camera	14% [4]	–	0.77^a
Cut-off filter glasses	25% [6]	16.7% [1]	0.66^a

CCTV Closed-circuit television; p-EVES portable electronic vision enhancement systems
Unless otherwise stated data are proportions (%) or median [range]
a: Fishers exact test b: Mann-Whitney-test

ISSN: 1471-2415