Page 124 - DISINVESTMENT AND IMPLEMENTATION OF VISION SCREENING TESTS BASED ON THEIR EFFECTIVENESS
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CHAPTER 6
Severity of amblyopia
The LogMAR VA of the amblyopic eye was equally distributed between both groups (Figure 8). The LogMAR VA difference between both eyes was equally distributed between study groups (p 0.733, Mann-Whitney U test) (Figure 9).
Severe amblyopia (VA under the 0.25 decimal) was diagnosed in 55 versus 45 children. Moderate amblyopia (VA 0.25 - 0.5 decimal) was diagnosed in 83 versus 74 children. Mild amblyopia (VA higher than 0.5 decimal) was diagnosed in 15 versus 11 children. Severity was unknown in 32 versus 29 children.
There was no significant difference between both groups regarding the vision of the amblyopic eye in the severe amblyopia group (VA under 0.25 decimal, above 0.6 logmar)(p 0.274). There was no significant difference between both groups regarding the vision of the amblyopic eye in the moderate to severe amblyopia group (VA under 0.50 decimal, above 0.3 logmar) (p 0.549).
Figure 8. Frequencies of the visual acuity (logMAR) of the amblyopic eye for the intervention and control group.
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