Table 4.
Relationships between Photopsia Characteristics
| Located Only in Peripheral Areas | Located in Some or Only Central Areas | P | Located across Larger Areas Over Time | Stable Over Time | P | Increased Frequency Over Time | No Change in Frequency Over Time | P | Increased Awareness Over Time | No Change in Awareness Over Time | P | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Located across larger areas over time | 2 | 7 | ||||||||||
| Stable over time | 8 | 15 | 0.49 | |||||||||
| Increased frequency over time | 5 | 10 | 9 | 6 | ||||||||
| No change in frequency over time | 5 | 12 | 0.81 | 0 | 17 | <0.001* | ||||||
| Increased awareness over time | 5 | 13 | 9 | 9 | 12 | 6 | ||||||
| No change in awareness over time | 5 | 9 | 0.63 | 0 | 14 | 0.002* | 3 | 11 | 0.01* | |||
| Located only/mostly in areas with vision | 2 | 11 | 3 | 10 | 7 | 6 | 8 | 5 | ||||
| Located only/mostly in vision loss | 8 | 11 | 0.11 | 6 | 13 | 0.60 | 8 | 11 | 0.51 | 10 | 9 | 0.62 |
Pearson χ2 tests. Data are the number of subjects reporting similar characteristics.
*
Statistically significant (P < 0.05).