A new cornea may be the only way to prevent a patient going blind – but there is a shortage of donated corneas and the queue for transplantation is long. Scientists at the Sahlgrenska Academy have for the first time successfully cultivated stem cells on human corneas, which may in the long term remove the need for donators.
Approximately 500 corneal transplantations are carried out each year in Sweden, and about 100,000 in the world. The damaged and cloudy cornea that is turning the patient blind is replaced with a healthy, transparent one. But the procedure requires a donated cornea,
A have-a-go hero who was blinded in one eye in a chemical attack 15 years ago has miraculously got his sight back after undergoing pioneering stem cell treatment.
Russell Turnbull is one of eight patients with impaired vision who have been treated successfully with their own stem cells, in a technique developed by scientists and eye surgeons at the North East England Stem Cell Institute.
Mr Turnbull was hit in his right eye, causing massive damage to the cornea stem cells, leaving him with severely impaired vision, a condition known as Limbal Stem Cell Deficiency (LSCD) (…)
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Health Counselor Board, Javier Alvarez Guisasola, launched on Wednesday a clinical trial coordinated by Professor Margarita Calonge, IOBA’s on cell therapy applied to treat corneal blindness.
This study was coordinated by the IOBA and IBGM to demonstrate the long-term effectiveness of the epithelial stem cell transplantation of the cornea, previously cultivated to restore corneal blindness. Stem cells come from a healthy eye of the patient or family support.
International Stem Cell Corporation announced that its Research and Development team has advanced its program to create a functional and transplantable human cornea by developing a new method to derive corneal endothelium-like cells from human pluripotent stem cells.
This work represents a significant step towards the creation of complete cornea tissue that can be used for transplantation and supports prior data showing indications of corneal endothelium generated by ISCO’s collaborators at Sankara Nethralaya Eye Hospital, India. Such cells by themselves may potentially promote wound healing and regeneration of the cornea and therefore could be used as a standalone medical treatment.
TONY EASTLEY: In a world first Melbourne researchers have rebuilt the surface of a human eye, using adult stem cells grown on a special type of contact lens.
One of the researchers is Karl Brown from the Centre for Eye Research Australia. He’s speaking with Ashley Hall.
KARL BROWN: We collected the adult stem cells from the very edge of the cornea. In the final version this could be the patient’s own eye if they have a good eye and an injured eye. Or it could be from material left over that is not used for a corneal transplant.