Lasers Must Be Banned in Singapore (except for exceptional uses)

http://www.scientificamerican.com/article/can-a-pocket-laser-damage/

...the light bulb gives light in all directions so you only see a small part of the whole. As you move away from the bulb, you see a quarter of the light every time the distance is doubled. A laser gives light in one small beam. If it gets into the eye, you receive all the laser's energy, not just a fraction.

 ...a light bulb gives off light at many different wavelengths (different photon energies). A laser is a pure tone, only one wavelength. The coherent light will be more damaging.

In real life many factors contribute to something becoming harmful. ... with laser pointers, different conditions determine when retinal damage will actually occur.

...some government entities have banned or restricted laser pointers. Some states and some cities have or have proposed age limits on the purchase or use of pointers. The United Kingdom bans the use of class 3A pointers. Laser pointers are high-tech tools, not toys.  

http://www.slate.com/blogs/future_tense/2013/03/22/laser_pointers_most_red_green_lasers_are_more_powerful_than_allowed_by_law.html

The human eye is a fantastic optical instrument capable of concentrating light a 100,000 times onto the retina...More than a few milliwatts at the cornea can be focused to a spot so small that the power density on the retina can become greater than that generated when staring into the sun.