The lens dosen't need to be cleaned. The same thing happens with my Anser from LG, the "splash" is the light reflecting off the sides in the laser(that's what I was told )
No worries, the lens is fine. I also thought my lens was dirty when I first started seeing the "splash" and tried to rub it off with a soft cloth and nothing changed.
One thing which did help lower the amount of "splash" on mine was by storing the laser in a semi-cold environment and not using it for about 1 hour. Maybe give it a try?
Edit: Could you take a picture real quick? I just want to see if what you are describing is actually "splashing" near the dot or if it is something completely different, thanks! Don't want to give you wrong information
Yea, no worries. Like I mentioned previously my Anser does that too sometimes depending on the conditions. This effect of a "splash" around the dot is called bat-wings and is quite common between lasers!