Tuesday, March 31, 2009
Swine flu vaccination
Wednesday, March 25, 2009
Impact of Satyam fraud on IT services
Tuesday, March 17, 2009
Story of LTTE
Thursday, March 12, 2009
Jim Laker
Thursday, March 5, 2009
Keratoconus
Keratoconus is one of the corneal diseases which may lead blindness in extreme cases. It is one of those diseases which is difficult to diagnose but till difficult to treat. Many people in India do not even know that they have this problem due to wrong diagnosis to normal sight problems. Lack of awareness about it seems to work in favor of development of disease. In patients having keratoconus the cornea develops into conical one from being a spherical one. As a consequence the patient loses his vision which might extend to near blindness. Although the disease progresses in stages it is difficult to control. Rigid glass permeable contact lenses are used to control the development but a corneal transplant in required advanced stages. In the advanced stages the cornea ruptures and aqueous humor from the eye fills the portion forming a white layer. The transplant success rates in keratoconus patients range from 90-95% which is good compared to other patients who require transplants. One of newest technologies to be used for treatment is called as piggy back lenses which has the central hard part and a soft outer part providing the same comfort as of soft lenses which a very good vision.