26/07/2026
A 4 year old presented after their teacher reported trouble seeing the classroom board, and examination revealed a significant difference in prescription between the two eyes consistent with astigmatic amblyopia risk. This was treated with full time glasses, with follow up planned to check whether patching therapy is needed if the eyes remain unequal.
Photo and case shared with parental consent: NATALIE | HENDERSON
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Noranda Optometrist
Perth, Noranda
08 9375 2660
www.norandaoptometrist.com.au
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A 3.25 D difference in astigmatism between the two eyes
When one eye sends a blurrier image, the brain starts favouring the other, and if left uncorrected that gap and blurry vision becomes permanent
The cylinder difference is more than doubled the recognised amblyopia risk threshold
Left uncorrected, the difference between the two eyes doesn’t stay the same, it widens over time, and the window for correction doesn’t remain open indefinitely
Full time refractive correction and patching if needed, while there’s still time for the brain to catch up