What is glaucoma?
There are two types of adult-onset Glaucoma and both refer to an increased abnormal pressure within the eyeball. The rarer form is when an acute attack occurs. Symptoms include a painful, red eye and possible light sensitivity and nausea. The most common form of Glaucoma is the preventable chronic type. Sight is adversely affected if it is not picked up early, the long-term effect being progressively worsening tunnel vision. It is essential to have your eyes screened for glaucoma once you are over the age of 40 years as the relative risk increases from this point. Other factors increasing the risk of glaucoma are diabetes, high levels of short-sightedness, age and family history.
 
What is the difference between an ophthalmologist and an optometrist?
Ophthalmologists are sometimes known as eye surgeons or eye specialists as they concentrate on diagnosing and treating eye diseases. They are essentially medical doctors that specialize in eyes and may perform surgery and prescribe medication as they see fit. Some also undertake the prescription of spectacles, contact lenses and recommend eye exercises, although this is quite rare. Optometrists will screen the eyes for diseases and refer to ophthalmologists if necessary. However, optometrists concentrate on spectacle and contact lens prescriptions. Some specialize in eye exercises to improve eye muscle conditions.
 
At the start of spring I can't wear my contact lenses comfortably as my eyes itch - why is this?
You are probably suffering from an eye allergy. Spring often brings about more sneezing and increased pollen counts along with all the daffodils. Certain susceptible individuals will experience a reaction in the eyes and an allergic conjunctivitis results. The itching is usually confined to the upper and/or lower lids and possibly the corner of the eye closest to your nose. If you wear contact lenses, the best thing to do is switch to spectacles for the duration of the allergy and buy a small supply of daily disposable lenses so that you can use them for a few hours out in the evening if you are desperate. Daily disposables would be the best lens type if your allergies are fairly chronic and you refuse to wear glasses. For relief from the itching certain anti-histamine containing drops can be bought from your local pharmacy. Most cannot be used in conjunction with contact lenses. Other types of drops can be used over a sustained period of time to strengthen the membranes of the cells that cause the symptoms of allergy. These drops have a longer-term effect and are called mast-cell stabilizers. The active ingredient is usually sodium cromoglycate. Ask your Optometrist or pharmacist for more information.
 
How long will the eye exam take?
This should not take longer than 30 minutes assuming no extra tests or contact lens fittings are required. We endeavourer to have completed our service to you within an hour.
 
Does the price on the frame include the lenses?
No, the price on the frame relates only to the frame. Lens prices vary depending on the material and design of the lenses required. Ask your Optometrist or dispenser to advise on the most suitable lens type for your prescription.
 
 
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Glossary


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There are 16 entries in the glossary.
Pages: 1

Term Definition
Single visionOne focal distance is required for your eyes to make adjustments at differing focal distances.
 


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