Sphere with many subdivision created bad reflection

Hello. When I create a sphere i add more than once the command subdivide to avoid getting segments caused by visible polygons, but I noticed that with further subdivisions of the reflection of a panel to give added depth causes an irregular edge of the panel. It 's my guess that this could be the problem.

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I think I’ve solved, I recreated the ball and used the modifier “Subdivision surface” with values ​​of 3 for view and render.