Professional Advices:
Presbyopia is not an eye disease. It’s a functional degeneration caused by the natural course of aging. As crystalline lens become hardened with age and lose its elasticity, its ability to focus diminishes. Presbyopia usually occurs beginning at around age 40. Dioptres will continue to grow until the ages between 60 and 65. There is no preventive measures for presbyopia.
When you begin to develop presbyopia, you will experience blurred near vision, feeling harder and slower to focus your vision on near objects. You cannot read or work at the computer comfortably for a long period, and need to remove near objects in order to focus properly. Intense use on near work will lead to eye fatigue, eye strain, a burning sensation, watery eyes and headaches.
If you are diagnosed with presbyopia, don’t worry about it. Optometrists will advise you the appropriate corrective solution based on your visual needs and eye condition, including wearing glasses, contact lenses, or undergo surgery. Most people with presbyopia prefer wearing glasses.
There are single vision lenses and progressive lenses for presbyopia wearers. With just one single dioptre, single vision lenses are for persistent close reading. A separate pair of lenses is needed for looking at distance objects. Progressive lenses offer a smooth transition from distance through intermediate to near vision, supplying all the in-between corrections. They have a pear-shaped progressive powers of correction, with distance vision at the top, near vision at the bottom, and mid-distance in the middle. Wearers will need some time to adapt to the lenses.
Single-vision reading glasses are readily available on the market, but they are not recommended by optometrists. That’s because these lenses have only one single vision, but most people have a different dioptre for each eye, together with astigmatism. Worse still, the optical centre distance of these glasses may not fit your pupillary distance, which can lead to eye discomforts.