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Chronic Venous Insufficiency

Detailed information on chronic venous insufficiency, including causes, symptoms, diagnosis, treatment, and full-color anatomical illustrations

Refractive Errors

Astigmatism is one type of refractive error. It's a condition in which an abnormal curvature of the cornea can cause two focal points to fall in two different locations—making objects up close and at a distance appear blurry.

Retinitis Pigmentosa

Detailed information on retinitis pigmentosa, including causes, symptoms, diagnosis, and treatment

Vaginal Cancer

Cancer of the vagina is rare. Certain factors thought to raise the risk for this type of cancer include advancing age, history of cervical cancer, and infection with the human papillomavirus.

Vaginitis

Vaginitis is a common problem for women of all ages. Bacteria, yeast, viruses, and chemicals in creams or sprays can cause it.

Valvuloplasty

During a valvuloplasty, a catheter is threaded through a vein to the heart where a balloon is used to open a stiff valve. Once opened, the balloon and catheter are removed.
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