Document ID: chunk:federal_register_of_legislation:F2024L01040:reg:9
Version: federal_register_of_legislation:F2024L01040
Segment Type: reg
Provision Reference: reg 9
Character Range: 3402–4603

9               Factors that must exist
At least one of the following factors must exist before it can be said that, on the balance of probabilities, pinguecula or death from pinguecula is connected with the circumstances of a person's relevant service:
(1)          having sunlight exposure to the unprotected eye for at least 4,500 hours while in a tropical area, or having equivalent sunlight exposure in other latitude zones, before clinical onset;
Note: latitude equivalent hours of sun exposure are calculated as follows:
(a)         hours of sun exposure in tropical latitudes (23.5° Sth to 23.5° Nth) multiplied by 1.0;
(b)         hours of sun exposure in subtropical latitudes (23.6° - 35°) multiplied by 0.75;
(c)         hours of sun exposure in warm temperate latitudes (35.1° - 45°) multiplied by 0.5;
(d)         hours of sun exposure in cool temperate latitudes (45.1° - 65°) multiplied by 0.25;
The number of latitude equivalent hours of sun exposure in each region are then added together. This is done to account for differences in sunlight intensity at different latitudes.
(2)          inability to obtain appropriate clinical management for pinguecula before clinical worsening.