"This was the first breakthrough in 20 years," he said.
Mrs Shaw is the first person outside of the UK and the US to have had the surgery. The procedure was performed by Dr O'Rourke last month.
"It is definitely life-changing," Mrs Shaw said.
"It's very nice, I can even look down to peel a potato now."
The surgery involved Dr O'Rourke making an incision into one of Mrs Shaw's eyes to put in the 4.4mm telescope implant.
"The key thing is you have to make a very big incision," Dr O'Rourke said.
"It's a big thing, an ordinary cataract incision is only 2.4mm."
The eye then had nylon stitches where the incision was, but they were buried under the membrane and would not be noticed by Mrs Shaw.
Despite having performed many large incision surgeries in his time working in Zululand, Dr O'Rourke said he was terrified something would go wrong, because it was the first time he had conducted the surgery.
However Mrs Shaw was not worried, saying she "had complete faith in him".
Mrs Shaw was among the small number of people who were suitable candidates for the surgery.
Patients need to come under a specific category of those with end-stage age-related macular degeneration and show they were capable of progressing through the rehabilitation stage.
Mrs Shaw said she was looking forward to getting back into gardening, embroidery and golf, activities which she had to give up because of her sight loss.
"Now I have a permanently sparkly eye," Mrs Shaw said.
CentraSight programme
To be eligible for the CentraSight programme, patients with end-stage, age related macular degeneration must be over 55, have bilateral vision loss in both eyes, and have no other diseases in the eyes. The cost of the telescope implant alone is $19,500 and is estimated to be $30,000 in total.