This health video looks into the technology that allows better sight for those who have weak eyes.
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Jennifer Matthews: Beverly Helmboldt has traveled a long way for her big day tomorrow. Beverly Helmboldt: I have no sight in my right eye and I have very little sight in my left eye and if I do not have this surgery, they have done all that they can do for me here. Jennifer Matthews: She calls it her last-chance surgery. She's had six corneal transplants on the eyes that have failed her all her life. Beverly Helmboldt: I am hoping that this will give me some vision and let me get back to some of the things that I have not been able to do. Jennifer Matthews: Doctor Shahzad Mian says corneal transplants don't always work on patients who need them. An improved surgery called keratoprosthesis, which uses a plastic implant instead, may be the answer. Dr. Shahzad Mian: It is a plastic window that we are placing in the eye. It remains clear. So patients can see through it, and it can provide a great source for improving vision for these patients where other procedures are not working. Jennifer Matthews: The procedure is already FDA approved, but with improvements in the last few years, it's now 80 percent successful. Dr. Shahzad Mian: I'm very excited and very hopeful that these kinds of procedures can help give some hope to these patients where there is no vision potential otherwise. Jennifer Matthews: Beverly hopes tomorrow's surgery is her last. Beverly Helmboldt: I'm looking forward to seeing my yard. My son put in a new deck and a new gazebo, and I am anxious to see that and some flowers that I've never seen. Jennifer Matthews: It will take a few days to know if it worked, but Beverly thinks this time, luck is on her side. This is Jennifer Matthews reporting.