Table 3 Classification of retinal points by pigment, drusen size and autofluorescence pattern
| Pigment | Drusen size | Autofluorescence, number (%) | ||
| Normal | Hypo | Hyper | ||
| Presence* | No drusen | 56 (83.6) | 7 (10.4) | 4 (6.0) |
| Intermediate | 3 (100.0) | 0 (0.0) | 0 (0.0) | |
| Large | 66 (72.5) | 1 (1.1) | 24 (26.4) | |
| Absence† | No drusen | 389 (93.5) | 11 (2.6) | 16 (3.8) |
| Small | 32 (100.0) | 0 (0.0) | 0 (0.0) | |
| Intermediate | 26 (96.3) | 0 (0.0) | 1 (3.7) | |
| Large | 125 (79.6) | 11 (7.0) | 21 (13.4) | |
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*None of the points with pigment had small drusen; p = 0.0015; †p<0.0001.
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Small drusen <63 μ; intermediate drusen 63–125 μ; large drusen >125 μ.
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Hyper, Increased autofluorescence; Hypo, decreased autofluorescence.
