Corneal abrasions are due to the following situation: the cornea - the eye's dome-shaped surface - is scratched or scraped, causing eye pain or vision problems.
The following factors may cause corneal abrasions: foreign objects (e.g. dirt, sand, air particles, cigarette ash, insects), fingernail scratch, contact lenses, eye infections, ultraviolet rays. In some cases, corneal abrasions can lead to serious problems, as the cornea contains many nerve endings.
The usual symptoms include: eye discomfort, eye pain, excessive tears, blurred vision, vision distortion, light sensitivity, eye squinting. For minor abrasions, use clean water to rinse the eye. In many cases, antibiotic eyedrops or other medical help will be needed.