What is the ocular focus region for hazardous laser wavelengths?

The ocular focus region for hazardous laser wavelengths is defined as the range where laser light can be focused on the retina, leading to potential eye damage. The correct range, which is from 0.35 to 1.40 microns, includes wavelengths that are particularly concerning for eye safety because the human eye is most sensitive to light within this spectrum.

This range is critical because lasers operating within these wavelengths can penetrate the cornea and lens of the eye, focusing directly onto the retina, where damage can occur. The sensitivity of human vision is greater at these wavelengths, making exposure to lasers in this range particularly hazardous.

Understanding this range is essential for implementing safety protocols in workplaces where lasers are used, as it helps in identifying and mitigating potential risks associated with laser exposure. Safety measures are typically focused on controlling exposure to sources operating within this defined ocular focus region to prevent eye injuries.