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Are my reading glasses making my eyes worse?


Are my reading glasses making my eyes worse?

Short answer- No

Although we don’t know the exact mechanism by which humans have a decreased ability to focus up close as we get older (a process called presbyopia), the fact remains that it will happen to all of us.

The leading theory of how this occurs is that the lenses in our eyes get stiffer and thicker as we age such that one of the muscles in the eye that contracts to change the shape of the lens does so less and less effectively because the lens itself gets less pliable.

The process of changing the focus of the lens from far away objects to up close objects is called accommodation.  If you have normal distance vision without glasses, then your eyes natural focus spot is far off in the distance.  In order to focus on an object close to you, the lens in your eye has to alter its shape. The ability of your lens to do that is at its best when you are born and slowly gets less and less pliable as the years go on.  You have such a tremendous ability to accommodate when you are young that the slow loss of this ability is not perceptible.  That is until you reach around the age of 45.

At around 45 years of age the lens has lost so much accommodative ability that you start to have difficulty focusing on near objects.  The impact usually starts when you notice that in order to look at anything small up close, you start holding it further away.  Even though this decreasing ability to focus up close has been slowly getting worse since the day you were born many people feel like the problem has occurred very suddenly.  We have many people who come into the office at age 45 telling us “all of a sudden” they can’t read.  What has probably been happening is they have just very slowly been adapting by holding things further away until one day “their arms are too short” and then they can’t read.

That is where reading glasses come in.  Some people just pick up over the counter readers which can work fine for them but if you haven’t had an exam in some time it is much wiser to get your eyes examined first to make sure the normal aging process is the only problem.  Once it is confirmed through a medical eye exam that there are no other issues, a reading glass is usually prescribed.  Contact lenses are also an option at this point.  See our blog Over 40 and can't read with my contacts for more information on your contact lens choices.

At the beginning a low powered reading glass is used.  As time goes on the lens in your eye continues to stiffen and your ability to focus up close continues to get worse.  The result of that is that your reading glass prescription needs to get stronger usually at a clip of about one step every 2-3 years.  IT IS NOT USING THE READING GLASSES THAT IS MAKING YOU WORSE, TIME IS MAKING YOU WORSE.  The decrease in reading ability without using glasses is going to continue to get worse as you get older whether you wear the reading glasses or not.  Trying not to wear the glasses and struggle along without them is not going to stop the march of time.  You really can’t preserve your reading ability by not wearing them; you are just struggling needlessly.

Watch our video on Presbyopia below.

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Tuesday, 26 March 2019

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