Entropion is a medical condition in which the eyelids fold inward. It is very uncomfortable, as the eyelashes rub against the eyeball constantly. Entropion is usually caused by genetic factors and may be congenital. Trachoma infection may cause scarring of the inner eyelid, which may cause entropion. A disease is any abnormal condition of the body or mind that causes discomfort, dysfunction, or distress to the person affected or those in contact with the person. ... An eyelid is a thin membrane of skin with the purpose of covering and protecting an eye. ... A closed eye, displaying lashes The eye now open — lashes less visible An eyelash or simply lash is one of the hairs that grow at the edge of the eyelid. ... Wikipedia does not yet have an article with this exact name. ... Genetics (from the Greek genno γεννώ= give birth) is the science of genes, heredity, and the variation of organisms. ... A congenital disorder is a medical condition or defect that is present at or before birth (for example, congenital heart disease). ... A scar results from the biologic process of wound repair in the skin and other tissues of the body. ...

Symptoms of entropion include: The term symptom (from the Greek syn = con/plus and pipto = fall, together meaning co-exist) has two similar meanings in the context of physical and mental health: A symptom can be a physical condition which shows that one has a particular illness or disorder (see e. ...

• Redness and pain around the eye
• Sensitivity to light and wind
• Sagging skin around the eye
• Excessive tearing
• Decreased vision, especially if the cornea is damaged

Treatment is a simple surgery in which excess skin of the outer lids is removed. Prognosis is excellent if surgery is performed before the cornea is damaged. According to the International Society for the Study of Pain, there are two different terms: pain and nociception. ... The sensitivity of a human, often considered with regard to a particular kind of stimulus, is the strength of the feeling it results in, in comparison with the strength of the stimulus. ... Prism splitting light Light is electromagnetic radiation with a wavelength that is visible to the eye, or in a more general sense, any electromagnetic radiation in the range from infrared to ultraviolet. ... Wind is the quasi-horizontal movement of air (as opposed to an air current) caused by a horizontal pressure gradient force. ... Model of the layers of human skin In zootomy and dermatology, skin is an organ of the integumentary system; which is composed of a layer of tissues that protect underlying muscles and organs. ... Tears trickling down the cheeks Lacrimation is the bodys process of producing tears, which are a liquid to clean and lubricate the eyes. ... Visual perception is one of the senses, consisting of the ability to detect light and interpret (see) it as the perception known as sight or naked eye vision. ... The cornea is the curved, transparent layer that covers the front part of the eye and protects its inner structures. ... A typical modern surgery operation For other meanings of the word, see Surgery (disambiguation) Surgery (from the Greek cheirourgia - lit. ...

Entropion often affects purebred dogs, although there are some breeds that are more commonly affected than others. Entropion has been documented in most dog breeds. Purebreds, also called purebreeds or pedigreed, are cultivated varieties or cultivars of a species, achieved through the process of selective breeding. ... For other members of the dog family, see Canidae. ...

References

• http://www.kellogg.umich.edu/patientcare/conditions/entropion.html
• http://www.nlm.nih.gov/medlineplus/ency/article/001008.htm
• http://www.upei.ca/~cidd/Diseases/ocular%20disorders/entropion.htm