What is Presbyopia?
Presbyopia is a condition that limits the focusing power of your eye as you age.
It affects every human being and cannot be reversed but in all cases can be helped by using reading glasses.
Typically people become aware in their early forties when their near sight becomes blurry or by suffering from asthenopic symptoms of eyestrain such as tension and headaches.
What Causes Presbyopia?
The crystalline lens inside the eye stiffens and is less able to flex to adjust your focus. The lens is made up of an outer capsule, with cells inside which divide, multiply and grow throughout your entire life. It is thought that this continual growth eventually causes the problem.
The lens becomes so densely packed with cells, stiffening over time and reducing its ability to flex and focus like it did in your youth.
What Age Will I Need Reading Glasses?
The vast majority of people will require reading glasses by their mid-forties. But individual variations and activities people perform regularly determine when each individual requires them.
Most people will start to wear glasses for more concentrated near tasks at first and then begin to use them more often.
Do Reading Glasses Make My Eyes Worse?
Presbyopia continues to progress as we age, further reducing our focusing ability increasing the strength of the glasses we need.
But as human beings we never hold ourselves responsible, IT MUST BE THE GLASSES FAULT!
The chart below shows how your ability to focus reduces over time for the average human eyes.
Is The Need For Reading Glasses Predictable?
The chart above shows a very predictable pattern of the loss in focussing power as we age. The average person will need to use reading glasses occasionally for near tasks like reading, using mobile phones and computer work during their 40s.
By the time most people reach 50, they will be using glasses for reading and most near visual tasks on a daily basis.
Once we reach our 60s many people opt for multifocal glasses such as bifocal or varifocals so that they don't have to keep taking them off all the time.