I can see fine to read or drive, but I’m having trouble with certain tasks, especially at work. What’s wrong?
It sounds like you may be having problems with your intermediate vision, which is the term used to describe visual acuity that’s needed to perform tasks at arm’s length — such as viewing a desktop computer screen.
This is a common complaint among computer users who wear bifocals or multi-focals (which correct only far and near vision) or reading glasses (which correct only near vision). The vision you need for tasks such as seeing your computer screen and other items within your workstation clearly is between these two extremes of far and near vision, so both bifocals / multi-focals and reading glasses aren’t the best solution.
Progressive lenses are an improvement for people with presbyopia, because these line-free multifocal lenses provide a correction for intermediate (computer) vision as well as for distance and near vision. But even these lenses may be inadequate for comfortable computer vision because the intermediate zone of general-purpose progressive lenses is relatively limited in size.
To reduce the risk of computer eyestrain or other work-related vision problems, ask your optometrist if specially prescribed computer glasses are a good choice for your needs. These lenses provide a very large field of view for reading or performing other tasks on a computer screen, eliminating eye strain, neck pain (from adopting unhealthy postures to see your screen clearly through bifocals) and other symptoms of computer vision syndrome.
Computer glasses may have single vision lenses, lined trifocal lenses, line-free “office” progressive lenses or some other design of occupational lenses to suit your needs. Many people who try computer glasses find they are very comforting for office work and result in far less eye fatigue throughout the day.
Be aware, however, that computer glasses are optimized for intermediate and near vision and they should not be worn for driving or other activities that require a clear distance vision. Keep this valuable “second pair” of glasses near your computer and wear whenever you need to perform tasks within arm’s length for extended periods of time.
Very important: Always make sure you discuss and make decisions about your eye care based upon a formal appointment with your optician.
For more information and to book and eye examination please contact us:
McKenna & Scott Pinelands
Tel: 021 531 1953