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You have a disease that will make you blind. How do you prepare to lose a key function?

Hong Kong resident Cheng Kwok-kwong, who has degenerative eye disease retinitis pigmentosa, is getting ready for when his vision fails

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Cheng Kwok-kwong (left), who is slowly losing his vision due to a genetic disease,  gets instruction in changing bedding at the rehabilitation centre of The Hong Kong Society for the Blind. Photo: Jelly Tse

How would you react if you learned that one day you would lose an important bodily function – your hearing or mobility, say, or your sight?

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Although he did not know until he was in his thirties, Hong Kong resident Cheng Kwok-kwong was born with an eye condition known as retinitis pigmentosa (RP).

This rare inherited disease causes progressive vision loss as cells in the light-sensitive retina at the back of the eye slowly degenerate.

It usually leads to night blindness and tunnel vision, and eventually blindness.

As there’s no treatment for this disease, I knew that my eyesight would only get worse. I feared being a burden on others.
Cheng Kwok-kwong on retinitis pigmentosa

Teresa Lee, a social worker and the supervisor at the Hong Kong Society for the Blind Rehabilitation Centre, says about 3,000 people in Hong Kong have the condition.

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Cheng was not affected much as he was growing up; he assumed his problems were due to being farsighted – until he received his diagnosis.

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