In South Korea, only visually impaired people can be licensed masseurs, dating back over 100 years to a Japanese colonial rule set up to guarantee the blind a livelihood

The law was established in 1912 when Korea was under Japanese colonial rule to help guarantee the blind a livelihood, according the to the Korean Association of Masseurs, which now has about 7,100 visually impaired people as members.

Welfare experts in the country have said the law helps the blind make a living by carving out a niche but it adds to discrimination in the workplace because it makes employers in other fields less likely to hire the visually impaired.

The law calls for up to five years in prison or 50 million won ($62,500) in fines for anyone who violates the law.

South Korea’s constitutional court has ruled that professional massage services help the blind as they generally have fewer career choices.