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Understanding how your eyes work can help you maintain healthy eyesight. It's worth noting the different terms used by eye care professionals to describe different types of visual conditions – and how our eyes focus.
Nearsightedness – Myopia is quite common, with more than 25 percent of adults living with this vision impairment. Close objects appear clear, while distant objects are blurred and difficult to see.
Farsightedness – Hyperopia results in blurred vision at all distances, and those affected often suffer from headaches and eye fatigue due to their efforts to focus.
Presbyopia only affects close vision, unlike farsightedness which causes blurred vision at all distances. As people age, the crystalline lens in the eye gradually hardens, making it harder to focus.
Astigmatism affects the outer layer of the eye, the cornea. With astigmatism, the curvature of the cornea is too severe, leading to distorted vision of both near and far objects. It sometimes occurs in combination with nearsightedness or farsightedness.
Whether you have perfect vision, or have symptoms of being farsighted or nearsighted, it’s always best to ask your optometrist. Your vision health is important to maintain, so make sure you are informed about the options that are best for you.