Astigmatism in 7 1/2 month old

[Ash_A_B]

Hello,

We recently started noticing that our 7 1/2 month old crosses her eyes intermittently when we lay her on her back on the changing table or the crib.
We visited a pediatric ophthalmologist and he diagnosed her with +2.5 astigmatism in both eyes. I had a couple of questions
1. I have heard that all infants have some astigmatism, what would be considered normal for a 7 1/2 month year old?
2. We do not have any history of astigmatism in our family. What are the changes that she outgrows this? And if yes, what age does this normally happen by?
3. Will wearing glasses prevent her yes from crossing?
4. Why does this seem to happen more when she is lying flat on her back. We have only seen it once when she is sitting and numerous times when she is flat on her back.
5. She is a twin and we have never noticed her crossing her eyes. Is she also at risk? Should we have her checked out?

Thanks so  much!
- Ash

[Timothy D McGarity, M.D.]

Not sure about the normal amount, but I'd guess that 2.5 is close to the limits. The real question, is this astigmatism causing problems. If your child doesn't grow out of it and true strabismus (eyes crossing) and/or amblyopia is detected, then the astigmatism should be treated. Keep up with your regular appointments at the peds ophtho.
Best wishes,
Tim

[Ash_A_B]

Thank you for your response.

We did see a pediatric ophthalmologist.
He is the one who diagnosed her with a +2.5 astigmatism in both eyes, and yes her eyes do cross towards her nose.

What would be considered 'normal' astigmatism for a 7 moth old?

Thanks,
Ash

[Timothy D McGarity, M.D.]

Do you have a follow up appointment with the Pediatric Ophthalmologist?
The eyes are crossing towards the nose, correct? This is common and sometimes more perceived than real; a condition known as pseudo-esotropia and related to increased epicanthal tissue in infants. Also, when children are placed on their backs (supine), there is more accommodation (eyes turn in). Astigmatism is fairly natural and should resolve as glasses won't help resolve it. Have regular checks to assess the astigmatism.

Best wishes,
Timothy D. McGarity, Medical Doctor, Ophthalmology