From: Target 5000: a standardized all-Ireland pathway for the diagnosis and management of inherited retinal degenerations
n =
%
Grade 4 or 5
274
62.3
Grade 3 only
34
7.7
1 allele grade 3 and 1 allele grade 4/5 (AR disease)
17
3.9
No variants detected
19
4.3
Unclassified (regrading)
94
21.4
Benign
2
0.5
Total
440