Pharmaceutical giant Johnson & Johnson (J&J) Wednesday announced a recall of its ACUVUE OASYS contact lenses, because it could cause users experience discomfort.

J&J said the problem was caused by a malfunction of the dilution process on one particular producing line. J&J explained that this is an isolated issue and has been taken care of.

The recall includes just 13 boxes in China. According to J&J Vision Care (Shanghai) Limited, the company has gotten in touch with customers who bought the recalled contact lenses and offered to exchange products.

"Of the 13 boxes of problematic products, three boxes were sold but have been recalled and exchanged with other products. The other 10 boxes are under control and will not go into the market," said a staff with J&J on Thursday.

China's business press carried the story above on Friday.