In the 'Symptoms - Head - Eyes/Ocular' section of our in-depth questionnaire we ask the following question about the focusing ability of your eyes:
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Focus. Slowly bring a newspaper or book closer to your eyes. Without wearing glasses or contact lenses, approximately how far from your eyes is the page when the regular-size letters start to blur?
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Your answer |
...indicates |
...and suggests |
| 1. |
"I can't do this test / don't know" |
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| 2. |
"Less than 4 inches (10cm)" |
Short focal length |
A symptom |
| 3. |
"4-11 inches (10-28cm)" |
Average focal length |
A symptom |
| 4. |
"12-36 inches (30-90cm or 1-3 feet)" |
Increased focal length |
A symptom |
| 5. |
"Over 36 inches (90cm or 3 feet)" |
Long focal length |
A symptom |
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Your answer will affect the likelihoods of the conditions below.
Any answers in green reduce the likelihood of the condition.
Last updated: May 10, 2007
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