Shaylers Vision Centre Ltd                      phone : 01929 553928                   email: reception@visiontherapy.co.uk

  • Vision Problem? - a simple test for to check your child

    A Vision problem? How can you identify if your child may have a vision problem?

    Vision problems in a school setting was researched  by Optometrist Geoff Shayler in 2002 at a school in Bournemouth, Dorset which indicated a direct link between the range of clear, near focus and educational ability as defined by their SAT results, the smaller the range, the poorer the SAT score. In addition this study also showed a link between these ranges and their behaviour in school!

    A simple measure

    Take a piece of small news print, start with print about 25 cm from your child's face, can your child see it clearly?,[if not try moving in or out a bit to see if you can find a distance when it is clear. If blurred at all distances then child definitely has a vision problem], move the print slowly in until your child just starts to find the print blurred (gets difficult to read) measure distance from forehead to print (NP). Now move the print away from the face until it just starts to blur (gets difficult to read). measure this distance (FP). Divide FP by NP. i.e if. NP=10cm, FP=30cm, then the FP/NP ration is 30/10 =3.

    If FP/NP ratio is <3.5, your child has a visual processing problem, 

    Between 3.5 and 4.5, may have a visual problem.

    If >4.5 unlikely to have a "visual" problem but may still have a "sight" problem - i.e.  if short-sighted will need specs to see clearly in the distance

    In a second study carried out with optometrist  Smita Trivedi, we identified that around 80% of children achieving grade 1 in their Key stage 1 SATs had an FP/NP ratio