sirs
i live and work in one of so called developing countries . in my country , the traditional lenses that are imported from old Chinese factories , are still available and sold . rarely you can find a lab that provides free-form manufactured lenses .
i understand well that free form has corrected - to a great deal - high order aberrations . but i need to know if there are bad or negative effects on the eye , from being exhausted due to wearing these old fashioned lenses (not made by free form) and that are still suffering from a great deal of high order aberrations ...!
can any specialized nerd here list these negative effects ?
thanks in advance
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