Category: K

A surgical operation to graft corneal tissue from a donor in place of diseased tissue. Surgical procedure in which diseased tissue of all or part of the cornea of the eye is replaced by healthy corneal tissue from a donor; corneal graft. An eye operation in which any diseased parts of the cornea are replaced…

A noninflammatory disease of the clear outer covering of the eye (cornea). Keratopathy can occur as a result of aging, glaucoma, eye surgery, or exposure to extreme temperatures or light. An inclusive expression utilized to categorize various conditions affecting the cornea, which is the clear front segment of the eyeball. Actinic keratopathy is a distressing…

The process of measuring the curvature of the cornea.  

A surgical knife used for operations on the cornea. Any instrument designed for cutting the cornea. The simplest type has a flat triangular blade attached at its base to a handle, the other two sides being very sharp and tapering to a point. Power-driven keratomes have oscillating or rotating blades.  

A hard thickened growth due to hypertrophy of the horny zone of the skin. Acquired, superficial, thickened patch of epidermis. A callus is a keratoma caused by continued, repeated pressure or friction on any part of the skin, especially the hands and feet.  

A type of benign skin tumour which disappears after a few months. A papule (small superficial bump on the skin) or nodule (solid mass of tissue) with a central crater that appears on sun-damaged skin. The papules or nodules may disappear on their own. Keratoacanthomas should be treated by a dermatologist because, although they are…

To convert something into keratin or into horny tissue.  

The appearance of horny characteristics in tissue. Deposition of keratin in cells, particularly those of the skin. The cells become horny and flattened and lose their nuclei, forming hair and nails, or hard areas of skin.  

A surgical operation to remove the whole or part of the cornea. An operation in which a part of the cornea is removed, usually a superficial layer. A surgical procedure that involves removing a portion of the eye’s cornea. It is also referred to as kerectomy.  

Condition in which the cornea bulges. Bulging or protrusion of the cornea of the eye. Bulging of the cornea at the site of scar tissue (which is thinner than normal corneal tissue).