Table 2 progression characteristics of drusen subtype.
Soft drusen | Pachydrusen | p-value | ||
|---|---|---|---|---|
n = 46 | n = 29 | |||
Mean duration of follow up, years | Mean ± SD | 4.2 ± 0.7 | 5.0 ± 0.8 | 0.13 |
Final drusen area, mm2 | Mean ± SD | 7.6 ± 7.1 | 1.7 ± 2.9 | < 0.01 |
Final SQDA, mm | Mean ± SD | 2.3 ± 1.1 | 1.1 ± 0.7 | < 0.01 |
Drusen area change/year, mm2/year | Mean ± SD | 2.6 ± 0.9 | 0.4 ± 0.5 | 0.03 |
SQDA change/year, %/year | Mean ± SD | 12.0 ± 8.7 | 2.2 ± 3.4 | 0.02 |
Incident exudative change, n (%) | n (%) | 6 (13.3) | 7 (24.1) | 0.38 |
Mean time to exudative nAMD, years | Mean ± SD | 3.7 (0.9) | 4.5 (1.3) | 0.46 |
nAMD subtype | ||||
Type 1 MNV | n (%) | 4 (66.7) | 1(14.3) | < 0.01 |
Type 2 MNV | n (%) | 1 (16.7) | 0 | |
Type 1 and 2 MNV | n(%) | 0 | 0 | |
Type 3 MNV | n (%) | 0 | 0 | |
PCV | n (%) | 1 (16.7) | 6 (85.7) | |
