505nm laser pointer VS 450nm laser pointer

Exposure to laser light can damage your eyes. Eye damage may vary depending on the wavelength and intensity of the green laser pointer. When using a laser pointer with high output power, don't forget to wear laser protective glasses.
Visible light (400 nm to 700 nm) and near-infrared light (IR-A, 700 nm to 1400 nm) can pass through the eye and cause irreparable damage to the retina, optic nerve and central eye. The human eye can usually decompose light in the wavelength range of 400 nm to 700 nm (violet to red). Invisible light with wavelengths other than near infrared can damage the outside of the eye. Ultraviolet rays (180nm to 400nm) can cause damage to the lens and cornea. Mid-infrared rays (IR-B, 1400nm to 3000nm) can pass through the surface and cause cataracts. Far infrared rays (IR-C, 3000 nm to 1 mm) can cause damage to the outer surface of the eye and cornea.