Well, it seems that you are quite worried about your health of the eyes. So, as a matter of fact, a laser pointer could indeed bring you to blindness. Some cases are seen on the football pitch. Anyway, a laser pointer could make your eyes bear treamendous damage, making them feel black in front of your eyes, and lead to a dramatic drop in your eyes, even lead to blindness because they could break your corneal and pupil. Never, ever give it a try.
Yes, it is not good to let the laser pointer to your eyes which will be bad for your eyes. Laser pointer is commonly known as the working substance or laser crystal which contains the special ion. According to different output wavelength, it is mingled with different ion. These ions in the electronic thing will be changed the wave length by the external stimulation. If you use the laser pointer to your eyes which are normal at the vision and with no problems, you may cause the blindness at the eyes because of the laser stimulation. However, at the same time, your body will be worked in disorder because of the laser stimulation. You'd better not let the laser pointer to your eyes. You should protect your eyes which are the weak points in the body carefully.