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Hong Kong consumer watchdog flags missing pupillary distance on reading glasses

The Consumer Council tested 17 ready-to-wear models and found only seven listed pupillary distance or optical centre distance, while the rest lacked required permanent markings and warning labels.

Reported · Written up by our desk · Emerging Markets

Hong Kong’s Consumer Council says more than half of the reading glasses it tested failed to include pupillary distance labeling, a measurement used to align lenses with a wearer’s eyes to help reduce eye strain.

In tests covering 17 ready-to-wear reading glasses sold locally between January and May, all models performed satisfactorily on criteria including mechanical strength and stability, resistance to ignition, nickel release, and drop tests, but most did not meet European standard requirements for labeling and warnings.

The council found that only seven models indicated pupillary distance or optical centre distance, while the remaining 10 did not meet the permanent marking requirement, making it harder for consumers to select suitable products.

The Consumer Council said that if pupillary distance does not match the wearer’s, lenses cannot align accurately with pupils, creating prism effects.

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