ACTINIC CONJUNCTIVITIS Meaning and
Definition
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Actinic conjunctivitis, also referred to as photokeratitis or snow blindness, is an inflammatory condition that affects the conjunctiva, the thin membrane covering the front of the eye. It is primarily caused by prolonged exposure to ultraviolet (UV) radiation from sunlight or other artificial sources such as welding arcs or tanning beds.
This condition typically occurs when the eye is exposed to high levels of UV radiation without adequate protection, leading to the inflammation of the conjunctiva. Actinic conjunctivitis is characterized by symptoms such as redness, tearing, eye pain, sensitivity to light, blurred vision, and a gritty or sandy sensation in the eyes. These symptoms usually manifest several hours after the exposure and can persist for several days.
Actinic conjunctivitis is usually a temporary condition and typically resolves on its own as the eye heals. Treatments for actinic conjunctivitis may involve avoiding further exposure to UV radiation, using lubricating eye drops to provide relief and reduce discomfort, wearing protective eyewear, and applying cold compresses to alleviate inflammation.
It is crucial to seek medical attention if symptoms persist or worsen, as these could indicate more severe eye damage. Furthermore, preventing actinic conjunctivitis is crucial, and individuals should be mindful of using appropriate eyewear and seeking shade when exposed to high levels of UV radiation.
Etymology of ACTINIC CONJUNCTIVITIS
The term "actinic conjunctivitis" is derived from two main components.
1. Actinic: The word "actinic" originates from the Greek word "aktis", which means "ray" or "beam of light". In medical terminology, "actinic" refers to the effects of radiation, particularly ultraviolet (UV) rays from the sun.
2. Conjunctivitis: The term "conjunctivitis" is composed of two Latin components: "conjunctiva" and "itis". "Conjunctiva" refers to the thin, clear tissue that covers the front of the eye and lines the inside of the eyelids. "Itis" is a suffix that denotes inflammation. Therefore, "conjunctivitis" literally means inflammation of the conjunctiva.
