Lacrimal Gland

Lacrimal Gland A small gland that secrets tears to bathe, nourish, and protect the front part of the eye. This gland is located behind the bone at the tail end of your eyebrow called the superior orbital rim. Disorders of this gland can cause a dry eye problem and is...

Lacrimal sac

Lacrimal sac A little structure that drains away tears. Little channels called canaliculi are present in the inner corner of the eyelids into which tears drain. From there, they are dumped into the lacrimal sac and then drained into the nose and throat. Disorders of...

Astigmatism

Astigmatism An optical error in which there are two or more abnormal focal point in the eye, unlike hyperopia (farsightedness) or myopia (nearsightedness) where there is just one abnormal focal point that needs correcting. (See Refractive Disorders for more details.)...