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Negative powers becoming stable after a while - Online Doctor Chats

Date : 13-Jan-2012
User rating for this question
Very Good Posted in: Vision and Eye Disorders
Answered by

General & Family Physician
Practicing since : 2004
Answered : 1777 Questions

Doctor :   hi
Doctor :   how can I help you?
User :   Hi, I want to talk to an optician
User :   I was told that the -ve numbers of the eyes become stable after 22-23 years of age, is that true ?
User :   they dont change after the 22-23 yrs ... is that true
Doctor :   in most of the cases
User :   why is that so ?
User :   i have -ve number , that is why i am asking
Doctor :   means stability
User :   and is that the case for cylindrical numbers or spherical numbers
User :   yes why they become stable ?
Doctor :   in case of cylindrical and spherical numbers the stability will vary
Doctor :   due to the growth
User :   why they dont show same behavior as +ve numbers
Doctor :   positive numbers are age related
User :   yes but why
Doctor :   as the age increases the muscles of the eye lax
Doctor :   leading to decreased focus and positive numbers

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