Bacterial eye infection pseudomonas infection,what can i do to get over a stomach virus,home remedies for external ear infection 7dpo - 2016 Feature

22.10.2013, admin
Send Home Our method Usage examples Index Contact StatisticsWe do not evaluate or guarantee the accuracy of any content in this site. Although some bacteria can invade a healthy cornea, most enter through a defect in the corneal surface, such as tiny scratches on the corneal surface caused by a foreign body or even from rubbing the eye. Corneal ulcers generally occur when the eye’s natural resistance to infection has been compromised, such as from contact lens wear or trauma. For a corneal infection to occur, the infecting organism must be capable of penetrating the natural defence mechanisms of the eye.
The normal tear film has protective antimicrobial components that may become disrupted by poor tear exchange caused by contact lens. Corneal ulcers are typically treated with an intensive regime of antibiotic eye drops by the eye specialist and may take several weeks to months to heal.
Healthy contact lens wear depends on many factors, including the type of lens, cleaning regime and wearing regime.
Although some contact lenses may be approved for overnight wear, it is better not to sleep or nap while wearing contact lenses, as this may increase bacterial binding, compromise corneal health and impair wound healing.

Dr Au Eong Kah Guan is Medical Director and Senior Consultant at Singapore International Eye Cataract Retina Centre, located at Mount Elizabeth Hospital, Singapore.
Lim Yun Chong is an Optometrist at Singapore International Eye Cataract Retina Centre, located at Mount Elizabeth Hospital, Singapore. Most corneal ulcers are caused by bacterial infection and are related to contact lens wear. These defences include the layers of the cornea, the tear film, and the lids and their mechanical wiping actions on the corneal surface. People who wear contact lenses are at an increased risk of corneal ulcers, especially if they also have improper hygiene and poor contact lens habits. Contact lenses with rough surfaces are more prone to bacterial adhesion and growth due to insufficient lens cleaning.
This causes the accumulation of inflammatory debris or microorganisms that would typically be removed via the tear film and blinking action, allowing the eye to be more susceptible to an infection.
After healing, a scar may remain in the cornea which may impair vision depending on its location and density.

Since daily disposables require neither a case nor a cleaning regime, their use may reduce the risk of bacterial infection. These contact lenses sustain a large quantity of organisms in prolonged contact with the cornea, increasing the risk of an infection.
Therefore, it is most important that you get an early assessment by an eye specialist if you suspect you have a corneal ulcer.
In very severe cases, a corneal transplant may be necessary to prevent the spread of the infection or to replace a badly scarred cornea.
Rubbing your contact lenses during cleaning is more effective in removing bacteria compared to the “no rub” alternative. In some developing countries, trauma and fungal infection are the leading causes of corneal ulcers.

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