New application for contact lenses: the recovery of the cornea..
In addition to vision correction, contact lenses are being increasingly used for therapeutic applications.
A new use has been set up: Australian researchers have developed a new technique for reconstruction of the corneal epithelium using conventional contact lenses.
Lesions of the cornea can be treated with transplants or treatments based on stem cells. But the medical profession is facing a shortage of grafts and the use of treatment is also found to be complex.
Scientists from the University of New South Wales, supervised by Dr Nick Di Girolamo, have found a way to facilitate these procedures, the transfer of autologous stem cells (from the patient himself) by contact lenses.
Cells ha
rvested in the conjunctiva (thin, transparent tissue which covers the outer surface of the eye) were grown on these lenses, which were then transferred onto the surface of the cornea in three patients for 10 days. Measurements from 8 to 13 months after the experiment showed the restoration of a stable and transparent epithelium from these three persons, without side effects. An improvement in visual acuity has been observed.
This simple non-invasive method requires no human or animal products, unlike other techniques, and therefore cancels the risk of rejection.
Inexpensive, it could be used primarily in developing countries. Moreover, using the patient's own cells, it does not pose any ethical problem.
In addition to vision correction, contact lenses are being increasingly used for therapeutic applications.
A new use has been set up: Australian researchers have developed a new technique for reconstruction of the corneal epithelium using conventional contact lenses.
Lesions of the cornea can be treated with transplants or treatments based on stem cells. But the medical profession is facing a shortage of grafts and the use of treatment is also found to be complex.
Scientists from the University of New South Wales, supervised by Dr Nick Di Girolamo, have found a way to facilitate these procedures, the transfer of autologous stem cells (from the patient himself) by contact lenses.
Cells ha
rvested in the conjunctiva (thin, transparent tissue which covers the outer surface of the eye) were grown on these lenses, which were then transferred onto the surface of the cornea in three patients for 10 days. Measurements from 8 to 13 months after the experiment showed the restoration of a stable and transparent epithelium from these three persons, without side effects. An improvement in visual acuity has been observed.This simple non-invasive method requires no human or animal products, unlike other techniques, and therefore cancels the risk of rejection.
Inexpensive, it could be used primarily in developing countries. Moreover, using the patient's own cells, it does not pose any ethical problem.
2 comments:
Thanks for the detail to information about lesions of the cornea can be treated with transplants or treatments based on stem cells.
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