What are multifocal/progressive lenses?
September 2, 2009 | Category: ophthalmology tips | Leave a Comment
Multifocals (or graduated or progressive lenses) contain three power areas: the top portion of the lens for distance vision, the central portion for intermediate vision (such as for computer use) and the lower portion for reading. The powers gradually change down the lens, so that there are no visible markings on the lens. Multifocals correct vision at all normal distances and can provide the most convenient and natural vision of all lens types.You can find them in Centro Visual G & G, and during september 2009 we have 10% discount in Varilux Physio, the best multifocal lenses.
Leave a Comment | PermalinkTags: cerca, distancia, graduated lenses, lenses, multifocal, multifocales, physio, varilux, vision
Celebrate Independence month with a 10% Discount on Varilux Physio during September 2009
September 1, 2009 | Category: Offers | Leave a Comment
15% discount on Visual Varilux Physio in July 2009
Take advantage of our promotion on Varilux Physio lenses during September at Centro Visual G&G.
Leave a Comment | Permalink20%, 30% and 50% discount in Frames during September 2009
September 1, 2009 | Category: Offers | Leave a Comment
Take advantage of our discounts during Independence month, different trademarks and styles.
Leave a Comment | PermalinkTags: aros, discount, frames, independence, september
I see floating spots in my vision, what are they caused by?
August 20, 2009 | Category: ophthalmology tips | Leave a Comment
Inside the eye is a jelly like substance called the vitreous humour. This keeps the eyeball inflated. Sometimes when we look at an object with a bright background, such as the sky on a sunny day, we see little floating spots in our vision. These are particles inside the vitreous of the eye casting shadows on the retina.
With age, the vitreous can contract and pull away from the back of the eye. Sometimes this can cause a large spot or floater to appear in the vision. When the floating spot first occurs, a flash of light may also be noticed as the movement of the vitreous pulls on the retina. Sometimes this can also cause bleeding at the back of the eye.
If a sudden increase in floaters occurs, or flashes of light are experienced, an urgent appointment should be made with your OPSM optometrist or ophthalmologist so that the health of the eyes can be thoroughly examined, as this may also be a sign of a retinal tear or detachment, which can cause significant vision loss.For more information please call Centro Visual G&G or make an appointment.
Tags: floating spots, flotador, vitreo, vitreous
What is age-related macular degeneration (ARMD or ARM)?
August 11, 2009 | Category: ophthalmology tips | Leave a Comment
Age-related macular degeneration (ARMD or ARM) consists of two types: dry macular degeneration and wet macular degeneration. Most people with ARMD have dry ARMD. In dry ARMD, waste products build up at the back of the eye. It can affect one or both eyes. Central vision may gradually decrease in dry ARMD. Wet ARMD is the more severe form of the condition in which new blood vessels grow at the back of the eye.
ARMD is the result of ageing processes in the eye. Some of the layers of the retina thicken and waste material which is usually removed from the retina forms deposits, distorting the retina. This distortion can cause damage to the other layers of the retina. In about 10% of cases, new blood vessels grow into the macula from beneath. These newly-formed vessels are fragile and often leak blood into the retina where the blood causes scar tissue to form. The scarring can block out central vision.
There are also some other forms of macular degeneration which are inherited and not associated with ageing. When most body tissues such a muscle, skin or bone are damaged, the tissues’ cells have the capacity to regrow and repair the damage. Because nerve cells cannot regenerate, damage to nerve tissue, such as the retina, is usually permanent and irreversible. This is why the vision loss in ARM is so difficult to treat.
Where new blood vessels have appeared in the macula area, laser surgery may be used. In this treatment a focused, intense beam of laser light is used to seal off leaking blood vessels and to prevent new vessels growing. This treatment is most effective when it is applied in the very early stages of the disease, before extensive damage has been done. There are also some emerging drug treatments for wet ARM. Avastin (Bevacizumab) is a new option drug with good results. While there is little which can be done to prevent or cure ARM, people with the disease can be helped to continue functioning normally.
Many patients with ARM will eventually come under the classification of being a low vision patient. Special help in the form of low vision devices is available from OPSM optometrists and specialist low vision clinics. Low vision devices enable patients to make the most of their vision and include items such as miniature telescopes, high-powered reading glasses, hand-held and stand magnifiers, closed circuit televisions and other simpler aids such as large-print books.
For treatment of ARM to be effective, it must be diagnosed as early as possible. Regular eye tests are the key to early detection of retinal changes and other signs of disease. If you notice any change in the quality of your vision, have your eyes examined immediately. Regular eye tests are particularly important for people over the age of 50 and people whose families have a history of eye problems. For more information please call Centro Visual G & G and make an appointment.
Leave a Comment | PermalinkTags: avastin, bevacizumab, degeneracion macular, laser, macular degeneration
What should I do if my child has an eye turn (strabismus)?
August 4, 2009 | Category: ophthalmology tips | Leave a Comment
If you notice that your child has an eye turn (strabismus) it is important to have the child’s eyes examined by an OPSM optometrist or ophthalmologist. The earlier in life an eye turn is treated the more likely treatment will be successful.
Strabismus can be treated through glasses wear, eye exercises and eye surgery. Treatment aims to straighten the eyes, teach them to work together and maximise vision. The turned eye of a young child can quickly develop amblyopia. Amblyopia is a condition in which the vision of an eye never fully develops. If amblyopia is treated while a child is still young the sight in the eye can sometimes be improved. Amblyopia is treated through eye exercises and eye patching. Amblyopia can also result in one or both eyes in the absence of an eye turn if a very high uncorrected glasses prescription is present. Amblyopia cannot develop in adults.
Leave a Comment | PermalinkTags: ambliopia, amblyopia, estrabismo, faq, glasses, strabismus
What causes cataracts?
July 14, 2009 | Category: ophthalmology tips | Leave a Comment
Everyone gets cataracts if they live long enough! Most cataracts occur as a normal aging change in the eye, and typically appear between the ages of 65 and 80, although they may appear earlier. Vision is not generally affected straight away, it might take years or decades to become a problem. The normal lens is clear at birth and becomes more opaque or cloudy with age. This process can be accelerated by excess exposure to sunlight.
Cataracts can also form in response to severe injury to the eye, radiation, or as a side effect to some eye diseases or medications. Some cataracts are inherited, and some occur as a result of illness, such as diabetes or intrauterine rubella.
Leave a Comment | PermalinkTags: cataracts, cataracts causes, cataratas, causas de cataratas
How often should I have my eyes tested?
July 9, 2009 | Category: ophthalmology tips | Leave a Comment
It is recommended that you see your Centro Visual GyG optometrist for an eye test at least every two years. It may be necessary to have your eyes tested more frequently, eg. if you have diabetes your Centro Visual GyG optometrist may recommend that you have the health of your eyes assessed each year. Some children should also have an annual review.
Leave a Comment | PermalinkTags: consejos oftalmologicos, consejos visuales, examen de la vista, eye exam, eye test
What causes dry eyes and what can be done about it?
July 7, 2009 | Category: ophthalmology tips | 1 Comment
Dry eye results when the eyes do not produce enough tears or when the different tear components are not produced in ideal proportions. Dry eye can be more pronounced in certain conditions such as during contact lens wear or in air-conditioned environments. Symptoms include dry scratchy eyes, the feeling that something is in the eyes or even watering of the eyes.
Dry eye can be treated with artificial tear supplements, which are applied to the eye in the form of ointments or drops. Your Centro Visual GyG optometrist can advise you about which tear supplements are most suitable for you.
1 Comment | PermalinkWhat damage does the sun or ultraviolet light do to the eyes?
July 3, 2009 | Category: ophthalmology tips | Leave a Comment
Skin is not the only thing that can be damaged by sunlight; your eyes can also be affected by excessive exposure to bright light and ultraviolet (UV) rays. UV-A and UV-B rays can contribute to cataracts (a permanent clouding of the lens inside the eye that reduces vision), as well as age-related macular degeneration (the leading cause of vision loss and legal blindness among Americans over 60 years of age). UV light also causes the surface of the eye (conjunctiva and sclera) to discolour and become lumpy (pinguecula and pterygium), which can look ugly and make the eye more prone to drying and other irritation. Acute sunburn to the eyes causes ’snow blindness’ or ‘welder’s flash’, which is where the surface layers of the eye peel away and can cause from mild to extreme pain and discomfort and reduced vision until the surface layers grow back.
To avoid harmful sun damage, take measures to protect yourself: wear sunglasses that block both glare and 99 to 100 % of UV-A and UV-B rays. UV protection is also available for your clear prescription glasses, in all lens types. Select frames that shield light and rays from all angles – wrap-around sunglasses are the best choice. Also, wearing a wide-brimmed hat and avoiding prolonged sun exposure, especially during peak hours when the rays are strongest, are other ways to protect yourself. Take note, clouds aren’t effective filters of the harmful rays, so be sure to wear your sunglasses on bright, cloudy days too!’
Leave a Comment | PermalinkTags: consejos oftalmologicos, consejos visuales, eye protection, harm, harmful sun, ultraviolet light, wear sunglasses
Focusing isn't just an optical activity, it is also a mental one.
