Dr. William R Lyman MD

Normally, the eye, cornea, and lens can easily focus light rays on the retina. The disease known asastigmatism is an imperfection in the curvature of the cornea, and it can produce a clear, round dome covering the iris and pupil.The cornea and lens remain smooth and are always curved equally in all...

Mumps is a viral infection spread from one person to another by means of respiratory droplets or through direct contact with contaminated items. Most cases of mumps are common in children aged between two and twelve years who haven’t been vaccinated against the illness. Nonetheless, the infection...

Laminectomy is a surgical procedure done for the removal of the lamina, bone spurs, and ligaments that may be putting pressure on your spinal nerves and causing lower back pain. The procedure is said to be one of the most commonly performed back surgeries. Below is a detailed information on what...

Your doctor will first attempt to give you other alternative treatments before recommending surgery. If your back pain still persists after treatment, your doctor may suggest for surgery as one of the solutions. Laminectomy is the most probable surgical procedure that you will have to undergo.Facts...

What is Epiglottis?Epiglottis is a elastic flap of tissue that is shaped like a thin leaf and situated at the root of the tongue. It protects the opening between the vocal cords, known as the entrance of the glottis. Epiglottis is covered with mucous membrane, which is a yellow elastic cartilage...

Doctors or physicians are categorized according to different factors including medical specialties and subspecialties. Most doctors specialize in a specific area of medicine. This article provides a summary of the different types of doctors in the medical field. AllergistsAllergists are also...