Table 1.
Eclipse Retinopathy Injury Scale for the classification of acute macular damage caused by unprotected solar eclipse viewing
| score | calculated Er | diameter of macular damage | grade |
|---|---|---|---|
| 1 point | Er = 12–35 cal cm-2 min-2 | 100–150 µm | 2 points – grade 1 |
| 2 points | Er =35–140 cal cm-2 min-2 | 150–200 µm | 3 points – grade 2 |
| 3 points | Er >140 cal cm-2 min-2 | >200 µm | 4 points – grade 3 |
| 5 points – grade 4 | |||
| 6 points – grade 5 |
Figure 1:
Photographs of the solar eclipse on March 20, 2015, taken with a 15 cm Newtonian reflector telescope by the first author (M.C.) from Szczecin, Poland. Image A was taken at 10:21 CET, almost midway into the eclipse. In B several individual images of the eclipse have been assembled together including Image A (white box). The obscurity of the eclipse was 45.40% at 10:21 CET.
Table 2.
Local conditions for Szczecin, Poland, during the solar eclipse on March 20, 2015
| Time of observation (CET) | Solar elevation (deg) | Obscurity (%) | L (W/m2) | EOCC (W/m2) | EOCC (cal/s/ cm2) |
|---|---|---|---|---|---|
| 7:52 | 14.8 | 0 | 610 | 90551 | 2.16 |
| 10:21 | 31.9 | 45.4 | 860 | 69704 | 1.66 |
| 12.01 | 36.4 | 0 | 893 | 132560 | 3.17 |
Figure 2.
Color fundus photograph (CFP) of the right eye in a patient with solar retinopathy (A). Near-infrared fundus autofluorescence image (NIR-AF) of the right eye in the same patient (B). Macular damage diameter was measured (white arrows) in both images yielding a result of 139 μm in the CFP image and 231 μm in the NIR-AF image.