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"Her eyes were glistening jewels". Metaphor may also be used for any rhetorical figures of speech that achieve their effects via association, comparison or resemblance. In this broader sense, antithesis, hyperbole, metonymy and simile would all be considered types of metaphor. Aristotle used both this sense and the regular, current sense above. [1]
Both the eyes and legs are still of the normal colour. Leucism (/ ˈ l uː s ɪ z əm,-k ɪ z-/) [2] [3] [4] is a wide variety of conditions that result in partial loss of pigmentation in an animal—causing white, pale, or patchy coloration of the skin, hair, feathers, scales, or cuticles, but not the eyes. [4] It is occasionally spelled leukism.
[1] [2] Patients observe these symptoms and seek medical advice from healthcare professionals. Because most people are not diagnostically trained or knowledgeable, they typically describe their symptoms in layman's terms, rather than using specific medical terminology. This list is not exhaustive.
Most frequent are symptoms due to conjunctival or corneal irritation: burning, photophobia, tearing, pain, and a gritty or sandy sensation. [4] Protruding eyeballs (known as proptosis and exophthalmos). Diplopia (double vision) is common. [4] Limitation of eye movement (due to impairment of eye muscle function).
The main symptom is loss of vision, with colors appearing subtly washed out in the affected eye. A pale disc is characteristic of long-standing optic neuropathy. In many cases, only one eye is affected and a person may not be aware of the loss of color vision until the examiner asks them to cover the healthy eye.
The person may have symptoms related to this, such as palpitations, angina (if pre-existing heart disease is present), intermittent claudication of the legs, and symptoms of heart failure. [ 28 ] On examination, the signs exhibited may include pallor (pale skin, mucosa , conjunctiva and nail beds ), but this is not a reliable sign.
Signs and symptoms are also applied to physiological states outside the context of disease, as for example when referring to the signs and symptoms of pregnancy, or the symptoms of dehydration. Sometimes a disease may be present without showing any signs or symptoms when it is known as being asymptomatic . [ 13 ]
Oculocutaneous albinism (OCA): A group of inherited disorders that affect melanin production, causing pale skin, hair, and eyes. [11] Griscelli syndrome: A rare genetic condition characterized by pigmentary dilution and immunodeficiency. [12] Chediak-Higashi syndrome: This genetic disorder results in pigmentary abnormalities and immune system ...