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Cyanopsia primarily affects the retina, the light-sensitive layer at the back of the eye, and sometimes the optic nerve, which transmits visual signals to the brain. The retina contains specialized cells called photoreceptors, which are responsible for detecting light and color. In cyanopsia, these photoreceptors, particularly the ones ...
Cocaine abuse has shown hair loss due to the hot vapors traveling up causing burning of the hair of the eyebrows or eyelashes. Radiotherapy and chemotherapy can cause hair loss due to the eradication of the hair cells, especially when used to treat ocular tumors. Genetics: Some of the diseases listed in the causes can be inherited.
Leukocoria may appear also in low indirect light, similar to eyeshine. Leukocoria can be detected by a routine eye exam (see Ophthalmoscopy). For screening purposes, the red reflex test is used. In this test, when a light is shone briefly through the pupil, an orange red reflection is normal. A white reflection is leukocoria.
The symptoms of female hair loss vary depending on which type of hair loss you have. You may notice sudden hair loss, gradual hair loss, or hair loss that gets better or worse over time.
A medium amount of the melanin makes eyes green or hazel, a large amount makes them brown. With regard to hair, the melanin builds up the same as in eyes, creating a dark color.
A major risk factor for AIR is a history of cancer, especially in paraneoplastic autoimmune retinopathy, where the autoimmune response is triggered by cancerous cells and cancer treatments. Cancer-associated retinopathy is commonly linked with cancers such as lung cancer and breast cancer, which trigger an autoimmune response due to malignant ...
The severity of hair loss can vary from a small area to the entire body. [7] Inflammation or scarring is not usually present. [4] Hair loss in some people causes psychological distress. [3] Common types include male- or female-pattern hair loss, alopecia areata, and a thinning of hair known as telogen effluvium. [4]
Monochromacy (from Greek mono, meaning "one" and chromo, meaning "color") is the ability of organisms to perceive only light intensity without respect to spectral composition. Organisms with monochromacy lack color vision and can only see in shades of grey ranging from black to white. Organisms with monochromacy are called monochromats.
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