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A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

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The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

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The average office desk has 400 times more bacteria on it than a toilet.

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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i
Nephroblastoma. A sectioned kidney reveals the presence of a very large tumor, which arose from feta Nephroblastoma. A sectioned kidney reveals the presence of a very large tumor, which arose from feta
Malignant Tumor Grading Malignant Tumor Grading
Metastatic spread of the tumor shown with imaging techniques. Metastatic spread of the tumor shown with imaging techniques.
Because the factor h on the right side of the Heisenberg uncertainty principle has units of ... Because the factor h on the right side of the Heisenberg uncertainty principle has units of ...
F factor excision from Hfr integration F factor excision from Hfr integration
Video: Glycolysis - and oxygen

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