Undercorrecting a child's astigmatism

[jck01]

Went through my medical records from when I was 7.
At that time I had a cycloplegic refraction of
-1.0 Dsph -2.5Dcyl
-1.0 Dsph -3.5Dcyl
but my first glasses prescription had weaker cyl by 1D:
-1.0 Dsph -1.5Dcyl
-1.0 Dsph -2.5Dcyl
I wonder what could be the reason for this and what could be the long term consequences of undercorrecting astigmatism in a child?

[JohnHaganMD]

Especially on the first pair of glasses if there are moderate to large amounts of astigmatism giving the full correction may be too much for the child to adjust to so a reduction is made with the idea that after the child adapts to that amount of astigmatism that next time glasses are changed the full amount might be given then.

[jck01]

Thanks for the answer. The thing is they gradually increased my spherical dioptrees as needed but never my cylinders. Do you think they proceeded correctly?

[JohnHaganMD]

The glasses RX changes quickly in children.  Hyperopia or astigmatism can increase or decrease. Myopia usually only increases. Subsequent glasses RX would be based on subsequent tests not the original refraction.  I think you should move on.