The Consumer Affairs Agency has received 80 health-related complaints, including loss of vision, linked to laser eye surgery since fiscal 2009, the agency revealed Wednesday, urging caution when considering the treatment.

Lasik treatment is used to reshape the cornea to correct farsightedness and astigmatism, but is considered most effective as a long-term treatment for nearsightedness.

The 80 complaints include severe vision loss, as well as eye soreness and headaches.