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Pollen and Children What is pollen? Each grain of pollen is tiny (microscopic). When there is a lot of pollen together, it becomes a fine yellow powder. It's made of the male reproductive cells of flowering plants, trees, grasses, and weeds. It's the most common cause of hay

Common Liver Tests What are some common liver tests? A series of blood tests can often find out if the liver is inflamed, injured, or working normally. The pattern of abnormalities can point to hepatitis (infection or inflammation of the liver) versus cholestasis (problems with

Refractive Errors in Children What is normal vision? To understand how certain problems can affect your child's vision, it’s important to know how normal vision happens. For children with normal vision, the following things occur in this order: Light enters the eye through the

Oral Health and Dental Specialists What is a general dentist (DDS or DMD)? To become a general dentist, a person must graduate from dental school and have either a DDS or a DMD degree: DDS. Doctor of dental surgery DMD. Doctor of dental medicine There is no difference between the

Allergens: Pollen What is pollen? Pollen is the tiny egg-shaped male cells of plants, including trees, grasses, and weeds. Pollen is microscopic in size. It is the most common cause of hay fever (seasonal allergic rhinitis). Which plants produce pollen that cause allergic

Anatomy of the Eye Anterior chamber. The front section of the eye's interior where aqueous humor flows in and out, providing nourishment to the eye. Anterior chamber. The front section of the eye's interior where aqueous humor flows in and out, providing nourishment to the eye