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Monthly Archives: June 2017

Acanthamoeba Keratitis

The problem with homemade concoctions is that these will lack anti-bacterial efficacy – harmful bacteria will continue run rampant on contact lenses and can cause serious medical complications if the eyes become infected.

A corneal ulcer is an open sore or non-penetrating erosion in the transparent area at the front of the eyeball – the cornea – and is associated with infections caused by bacteria. This is exactly the kind of bacteria that freely grows on contact lenses when homemade solutions are substituted for commercial cleansing solutions. Corneal ulcers can also be precipitated by wearing soft contact lenses overnight.

Those who attempt to use their own homemade cleaning solutions also run the risk of contracting Acanthamoeba keratitis, Acanthamoeba is a water-borne, microscopic parasite that can wreck havoc in the form of an infection when it invades the cornea. While using homemade solutions are often the cause, swimming in lakes and swimming pools while wearing contacts can also trigger the condition.

The symptoms that accompany this infection are intense pain and redness, and those afflicted with the infection are often hospitalized. If corneal scarring results, a cornea transplant may be necessary. Treatment and therapy may last a year or more, and sometimes severe vision lost can be the outcome of a bout with Acanthamoeba keratitis.

It’s crucial to remember that accessories like the lens cases for contact lenses must also be kept clean in accordance with the manufacturer’s instructions. These instructions will specify what cleansing solution to use or may even specify that the use of hot tap water to clean the lens case is permissible. A case that isn’t properly cleaned can be a breeding ground for bacteria in the same way that improperly cleansed contact lenses can be. Eyecare professionals suggest discarding cases every three months or so and replacing them with new ones.

The good news is that the risk of contracting Acanthamoeba keratitis can be minimized by adopting these simple measures:

# Avoid the use of homemade cleansing solutions

# Make sure you use commercial cleansing solutions

# Msure you clean the cases for your contacts; discard and replace the cases every three or four months

# Be aware that sometimes wearing soft contact lenses overnight can cause infections for some people

# Be aware of all factors that may cause infections and medical complications, such as wearing contacts while swimming in lakes, pools or the ocean

Don’t allow destructive bacterial to build up on your contact lenses and in your cases. Eye-damaging conditions like A keratitis can be held at bay by following a simple set of hygeinic procedures that will help to ensure that your eyes stay healhly and infection free.

 

Caring for Sunglasses

Benefits of Sunglasses – Properly manufactured sunglass lenses absorb harmful ultraviolet (UV) rays from the sun which can cause permanent eye damage over time; such as cataracts, photokeratitis (snow blindness), or pterygium (eye growths). Purchasing a pair of discount eyewear can be troublesome if the lenses do not block UVA and UVB rays. These tinted glasses cause your pupils to dilate letting in even more damaging ultraviolet light.

Choosing the Right Pair – While the color of lenses may influence your selection, as they can change your perception of brightness and contrast, color is not an indicator of the how much ultraviolet light will be blocked. It’s imperative that you always check the label to ensure an OSHA rating of at least 99% protection from UV rays. Most eye care clinics and shops will have a machine on hand which can measure the amount of UV rays a lens can absorb.

There are also UV rated contact lenses now available but doctors recommend that sunglasses still be used as the entire eye and eyelid should be covered. Sunglass lenses can be made of glass or plastic and may be treated to provide specific features.

– Mirrored glasses have a thin layer applied to lens which reduces visible light reaching your eyes, but does not block UV rays.

– Polarized lenses cut the glare from smooth surfaces such as water or snow and are often used by athletes and outdoor sports buffs.

– Anti-reflective coatings help prevent halo effects and reflections on the lenses themselves which helps with driving, as well as give a more attractive appearance.

– Photochromic lenses are sun-sensitive and transition from light to dark shade according to conditions.

– Ground lenses minimize distortion and are preferable to punched lenses.

There are a number of materials that can be used for sunglass frames, from plastic and basic metal to specialty lightweight metals such as titanium and stainless steel. You’ll want to select a frame that fits comfortable on your face, or one that can be adjusted by tightening the screws or reforming the side arms. A close fitting pair of wrap around glasses provides the best protection.

Fashion stylists recommend that you choose a frame that is the opposite shape of your face. For instance, an angular or thing face looks better in a rounder frames while a round face looks best in angular and square shaped glasses.

Cleaning Methods – Sunglasses can be damaged easily while cleaning but it’s not necessary to purchase any special tools or products to do a proper job.

To avoid scratching your lenses never rub your them with regular fabrics which may contain abrasive fibers. Always wash lenses with a mild soap and warm water first, and then dry with a lens cloth or nonabrasive soft cotton towel. You want to remove any debris or dirt that could cause scratches. It’s best to do this daily to prevent heavy buildup. There are a number of professional lens clothes and gels on the market which can also be used.

While cleaning hold your sunglasses by the eye frame with one hand and use the other to gently buff in a circular motion. Do not press too hard on the lenses or try to hold the frame by the end of the side arms which could cause the hinges to bend.

Be sure to wash your lens cloth periodically to keep it clean. Use mild soap without fabric softener or other additives. Some cleaners may contain or recommend vinegar, but this should never be used on plastic lenses. Use vinegar on glass lenses only. To achieve a final crystal clear finish use a small dab of alcohol and a second nonabrasive buffing cloth to remove any soap spots.

Always keep your glasses in a hard case when not in use. This will protect them in case they might be dropped or rub against other items inside a drawer or purse.

 

Contact Lenses Safety

Many people choose to wear disposable contact lenses because they require no cleaning and do not carry the potential for bacteria presence, which is a common problem with reusable contact lenses. In an effort to prevent this occurrence, wearers must regularly clean and disinfect their contact lenses in order to maintain both a sanitary surface and clear vision.

Along with most prescriptions, an optometrist will provide advice on cleaning, wear time and maintenance. The reason is because some cleansers are to be used exclusively with certain types of contact lenses, which makes it very important that the wearer read the labeling on any solution prior to applying it to his/her contact lenses. One thing that all solutions have in common is that their container should remain closed while not being used.A number of individuals may be sensitive to certain ingredients, which are sometimes included in cleansers used on contact lenses. If an individual suspects that they must have any such sensitivity, they should inform their doctor in order to avoid possible complications.

Just as medication is prescribed individually, contact lenses are no different. Therefore, individuals should not share their lenses or use the lense of another wearer. As one may expect, this can cause serious damage and possible infection. In severe cases, the contact lenses may have to be professionally removed if they are inserted into the eye of anyone other than the intended wearer. Severe swelling, infection and eye damage are all possibilities of this action.

As a final thought to caring for contact lenses, wearers should wash their hands thoroughly prior to touching the lense or their eyes. The soap should be free of moisturizers or allergens, both of which may cause complications with contact lenses and sensitivity to the eye.

The information in this article is intended for informational purposes only. It should not be considered as, or used in place of, medical advice or professional recommendations for the intended use of contact lenses. If necessary, individuals should consult a optometrist or qualified physician for a proper fitting for contact lenses and additional information on their use and benefits.