As I am having a rest (not a ban) from the other thread...
As others have pointed out, optical filters to cut red or green laser light will also affect the visibility of aircraft navigation lights, and ground based lighting. So it is effectively impossible to block laser light while still allowing a pilot to keep an unimpeded visual look out.
However, reflected laser light can be just as damaging as a direct hit, the pilot doesn't need to be looking out the window, a reflection off an instrument could be just as bad.
My suggestion would be for antireflective coatings to be applied to all cockpit glazing and for other materials in the cockpit to be dark or light absorbent matt colours and finishes wherever possible. Micro scratches on the outer surfaces of the cockpit screens also cause issues when back lit by bright light. A hardened coating or polish capable of surviving the rigours of flight could be used to try and smooth out these scratches.
These suggestions wouldn't stop a direct laser hit, but by eliminating reflections the dazzle effect in the cockpit could be reduced significantly.
Alternatively, pilots could take to wearing Raybans 24/7. Wouldn't do much to cut down the laser light, but they would look cool. On a serious note, dark glasses would likely make the problem worse because the eye pupils would be open wider. One of the reasons daytime laser attacks are seldom reported is that the pilot doesn't even notice them against a daylit background, although eye damage could be being caused and going unnoticed.
Interesting figures on the strength and spread of beams from the ground. The first 6000 feet of air above ground is stuffed full of dust, moisture and other particles and attenuates laser light considerably. If a beam is aimed straight up, it appears to cut off rather abruptly after a rather short distance. This is where the quantity dust in suspension from the ground diminishes. As the beam is swung down towards the horizon, it appears to lengthen. This effect is due to the dust being illuminated by and refracting and attenuating the beam. In clear air, a 200mW green laser has a naked eye visible range in excess of 80 miles (demonstrated to 84 miles between mountain tops). At sea level altitudes a range of 10 miles is more likely. A 200mW laser will cause instant and permanent eye damage at ranges of less than a couple of hundred yards. The potential for permanent vision loss diminishes with distance. At a mile or so, the blink reflex and beam spread will prevent permanent injury, although the dazzle effects will be severe and vision will probably be affected for several minutes.
As for an outright ban on lasers? Well the average household has at least five fitted to domestic entertainment systems, CD and DVD players, laser printers, laser levels, laser pointers, etc, etc. These things are not going to disappear.