(HealthDay News) — Health care providers on the West Coast need to look out for syphilis that can cause blindness, public health officials say.

More than a dozen cases of ocular syphilis – most among gay men – have been reported between Seattle and San Francisco, and two more potential cases have been reported in Los Angeles, according to the Los Angeles Times.

Doctors and eye-care providers should be alert for symptoms of ocular syphilis, which typically occurs as a complication of primary or secondary syphilis infections, the Los Angeles County Department of Public Health said.

“These new cases highlight the importance of ongoing, regular check-ups for sexually active individuals who feel they may be at risk, particularly men who have sex with men,” Michael Weinstein, president of the AIDS Healthcare Foundation, said in a statement, the Los Angeles Times reported.

Health Highlights: March 11, 2015