Reading glasses are required by several people after they are a certain age. It is a normal part of ageing and many people that have eye problems require glasses if they are not able to function normally and find it difficult to read. If you are facing any problems with your vision then you should consult your doctor and get your eyes checked. The right kind of glasses will make a big impact and they can help you carry on your normal work like reading, writing and typing in a very comfortable way. Clear vision is very necessary for anyone but there are many people who don’t yet know much about glasses and why they would be needed.
If you have far sightedness, reading glasses can be very helpful. Far sightedness is where you can view the objects located far clearly but has a problem focusing on nearer objects. You will find closer images blurry when you try to concentrate on them. There is a particular critical distance and when an object is within that distance, you will not be able to view it clearly. To find out if you have far sightedness, you can hold a book or a paper at a distance and then gradually bring it closer to see if it gets blurry and out of focus. The distance from where the book becomes blurry is your critical distance. This medical condition is hyperopia and it may occur when an image forms beyond the retina rather than on it. You would require convex lenses in order to focus properly on objects close at hand. Normally, old people suffer from this condition.
Very often, reading glasses are also needed for those suffering from short sightedness. This means that you will be able to see things that are closer clearly but not if they are at a distance. Children and teenagers face this problem today since they watch excessive television or spend too much time on their computers which can easily harm the eyesight. Those who have short sightedness will need to regularly wear their glasses. People who have to drive often will have to be especially careful and take proper precautions if they have short sightedness. Normally, doctors will suggest concave lenses for making you view the objects clearer if you have short sightedness.
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