Eye Focusing (Accomodation)
Why do we need good focusing skills?
Eye focusing (technically called accommodation) allows us to see clearly at different distances. Our eyes are designed to focus only at one distance at a time. Normally when looking close, far images will appear blurry. When looking far, near images will appear blurry.
How does focusing work? Our eyes are naturally designed to be clear for distance, so when we look at a near object, the lens in our eye changes shape to redirect light rays on the retina (much like a macro lens on an SLR camera). For near tasks, more effort is required to maintain a clear, sharp image for a sustained period of time.
When kids have a focusing problem, they will find their eyes fatigue very quickly and can no longer maintain the effort.
When that happens, their vision at near can flicker between clear and blurry, causing watery eyes, excessive blinking, eyestrain and headaches. Some children may avoid reading by this stage whilst others will continue to try “hard” and may hold print very close when reading.
How Can We Help?
Our optometrists will provide a comprehensive eye test to determine what’s wrong. Some focusing dysfunctions are caused by basic vision problems such as long-sightedness, short-sightedness or astigmatism. Treatment may be as simple as providing spectacles to correct a refractive error.
If spectacles are needed, our qualified optical dispensers will help you select the best lens and frame for your child. Some kids with focusing difficulties may need special lenses to be able to see near and far without having to remove their spectacles.
Sometimes focusing problems are not errors of refraction but due to a vision processing issue, or how the eyes and brain are not coordinated. This may entail vision therapy. Our vision therapists are well trained to provide exercises that are suited to your child’s age and specific needs.
Some focusing problems are caused by an eye muscle problem, in which case we may refer you to an eye specialist. If we rule out an eye condition, we may refer you to a child behavioural specialist for further assessment.
