Why does the Aburame clan cover their eyes? The explanation in Naruto Wikia was not sufficient so I decided to go through the trouble to ask here. :)

Given that the defining traits of an Aburame is to wear something to cover their eyes and to dignify their whole body, why is it that they cover their eyes in the first place? Whilst, the other noble clans like Uchiha and Hyuga never covers theirs? Does covering their eyes boost their power? Or does it have to do with the insects getting on their eyes? Or might it be that their eyes are not presentable or not to be shown to the public?

Any philosophies that might shed light to the importance of protecting the Aburame clan's mysterious eyes?
They do not cover their eyes. They use sunglasses/dim glasses for protection. 

Since they are known for having the characteristics of insects, we can assume that they have crepuscular vision and some have nocturnal traits - meaning that they are most active in twilight/low light/night. Their eyes are highly adapted on low light.

Therefore, using their naked eyes are like humans using Night Vision goggles. Just imagine the amount of light they will receive during daylight.

Source: Insect Vision