To solve this problem, we need to understand the cause of snow-blindness in the Antarctic region. Let's analyze each option:$\newline \bullet$Option 1: Inflammation of cornea due to high dose of UV-B radiation$\newline$ - Snow-blindness, also known as photokeratitis, is a painful eye condition caused by exposure to ultraviolet (UV) rays.$\newline$ - In the Antarctic region, the reflection of UV rays from the snow can lead to a high dose of UV-B radiation reaching the eyes.$\newline$ - This causes inflammation of the cornea, leading to symptoms such as pain, redness, and temporary vision loss.$\newline$ - Therefore, this option correctly describes the cause of snow-blindness.$\newline \bullet$Option 2: High reflection of light from snow$\newline$ - While snow does reflect a significant amount of light, it is specifically the UV component of the light that causes snow-blindness.$\newline$ - This option is partially correct but does not fully explain the condition.$\newline \bullet$Option 3: Damage to retina caused by infra-red rays$\newline$ - Infra-red rays do not cause snow-blindness. The condition is related to UV rays affecting the cornea, not the retina.$\newline$ - Therefore, this option is incorrect.$\newline \bullet$Option 4: Freezing of fluids in the eye by low temperature$\newline$ - Snow-blindness is not caused by freezing of fluids in the eye. It is related to UV exposure.$\newline$ - Therefore, this option is incorrect.$\newline$Based on the analysis, the correct option is:$\newline$Option 1: Inflammation of cornea due to high dose of UV-B radiation.