Top videos
The BMHR uses the same socket (hydroxyapatite-coated metal uncemented cup) and bearing(metal on metal) as the BHR. The modular head component fits onto a hydroxyapatite proximal porous coated cobalt chrome stem. It is an uncemented short stemmed prosthesis. It was invented by Prof. Dereck Mc.Minn a year ago and is performed by very few surgeons the world over. In India it is being done only at the Asian Regional Center for Hip Resurfacing in Chennai.
In PRK the epithelium (top layer of the cornea) is scraped off and then the laser treatment is applied. A contact lens is used as a "bandage" to decrease discomfort. The epithelium then grows back over the bare area during the next few days.
In LASEK the epithelium is exposed to 20% alcohol which helps separate epithelium from the cornea. The epithelium is pushed to one side and laser treatment applied. The epithelial layer is replaced back onto the eye and held in place with a contact lens. The contact lens is then removed a few days later. LASEK is hence a "no knife"/flap operation.
Epi-Lasik is a similar procedure that uses a keratome like that used for Lasik, but engineered to only separate the epithelium. The epithelium is left on a hinge, laser treatment applied and flap replaced.