After enduring a decade of poor vision, 109-year-old Guo Liansheng has been given back the gift of sight by UK intraocular lens (IOL) experts Rayner - setting the new world record for the Oldest Cataract Surgery Patient.
The Guinness world record for the Oldest patient - Dental implants was set by Margaret Brown (Canada), who was aged 94 years 354 days when Dr Milan Somborac of Tenax Implant Inc, Collingwood, Ontario, Canada, placed two dental implants in her lower jaw.
Guinness World Records also recognized the world record for the Oldest Heart Surgery Patient, set by Herbert Carrington (USA), who received a Medtronic Hancock II tissue valve on 10 June 1993 aged 94 years 129 days.
Before implantation of a Rayner IOL, Madam Guo struggled to detect even the vaguest light changes.
Afterwards, she was able to look into her eight-month-old great-great-granddaughter's eyes for the first time.
Last year, a cataract in Madam Guo's left eye was replaced with a premium-quality Rayner lens in a cost-effective and simple procedure. She was so impressed with the result, after consultations with the Hospital team, she elected to have the same procedure on her right eye within a year of the first operation.
Madam Guo was keen to move quickly so she would be able to see members from five generations of her family, who would be visiting for the Year of the Dragon New Year celebrations. The surgery is now pending a Guinness World Record for World's Oldest Cataract Surgery Patient.
Both of Madam Guo's operations were performed by Dr Chu Tao, a cataract expert at Shanghai New Vision Ophthalmic Hospital.
Dr Chu Tao used C-Flex 570C lenses (her left eye was 17.5D and right eye 19.0D, with excellent final refractive results).
The hospital covered all of the 109-year-old's costs.
Nearly 6,000 miles away, Rayner - the company that developed the lens that has given the 109-year-old visual clarity - has been honing its science since 1949.
Rayner's CEO, Donald J. Munro, says: 'We are used to our products improving the lives of people all over the world but it's especially gratifying when you hear a story like this.
"The technology is so advanced now, and the procedure so simple, that almost anyone can benefit from vastly improved eyesight. It's also proof that age is no barrier to health aspirations.'