Table 3.
Mean and standard deviation of ratings of each item in Round 2, together with the category of the item.
| Item | Mean | SD | Category |
|---|---|---|---|
| Words moving when reading | 8.9 | 1.3 | Symptom from text |
| Voluntary use of overlay for >4 months | 8.8 | 1.4 | Investigation |
| Avoiding reading unless with an overlay | 8.7 | 1.5 | Sign when reading |
| Overlay improves WRRT by ≥15% | 8.6 | 2.4 | Investigation |
| Preference to use colour | 8.3 | 1.5 | Signs when reading |
| Words merge together | 8.3 | 1.6 | Symptom from text |
| Patterns or shadows in the text (e.g., rivers) | 8.1 | 1.9 | Symptom from text |
| Voluntary use of overlay for 3 months | 8.1 | 1.4 | Investigation |
| Strong aversion to striped patterns | 8.0 | 1.5 | Other symptom |
| Words or letters seem to stand out in 3-D above the page | 7.7 | 1.8 | Symptom from text |
| Words or letters fade & darken | 7.6 | 2.0 | Symptom from text |
| Discomfort with certain artificial lights & flicker | 7.6 | 1.4 | Other symptom |
| Symptoms originating spontaneously from student | 7.5 | 1.8 | Other symptom |
| Dislikes light/dark stripes | 7.5 | 1.6 | Other symptom |
| Overlay improves WRRT by ≥10% | 7.5 | 2.2 | Investigation |
| Symptoms variable depending on font/spacing of text | 7.4 | 2.5 | Symptom from text |
| Pattern glare pattern 2 >3 | 7.4 | 2.4 | Investigation |
| Reduced reading ability after a short period | 7.3 | 1.6 | Symptom from text |
| FH visual stress | 7.2 | 1.3 | History |
| PH migraine | 7.2 | 1.3 | History |
| Pattern glare score >1 on pattern 2–3 difference | 7.1 | 2.4 | Investigation |
| Repeating words and/or lines | 7.0 | 1.8 | Symptom from text |
| Words blurring when reading | 7.0 | 1.7 | Symptom from text |
| PH of dyslexia | 6.9 | 1.6 | History |
| Using a ruler/finger to trace text | 6.8 | 1.9 | Sign when reading |
| FH of dyslexia | 6.5 | 1.7 | History |
| Headaches when reading | 6.5 | 1.8 | Symptom from text |
| FH of migraine | 6.2 | 1.5 | History |
| Photophobia | 6.1 | 1.7 | Other symptom |
| Voluntary use of overlay for 3 weeks | 5.5 | 2.1 | Investigation |
| Overlay improves WRRT by 5% | 5.4 | 1.9 | Investigation |
| Eye pain when reading | 5.3 | 2.3 | Symptom from text |
| FH of epilepsy | 4.9 | 1.7 | History |
| Inconsistent errors on Ishihara test | 3.4 | 2.4 | Investigation |