No.  It is to balance the two eyes with regard to the chromatic
variation in refraction.   White light is composed of light of many
different wavelenghts and does not come to a precise focus on the
retina.  Shorter wavelengths of light (blue and green) are refracted
more than longer wavelengths by an optical system like the eye.  So
green will focus slightly in front of the retina and red slightly
behind.  If the optician has slightly overplussed your prescription,
red light will be on the retina and clearer than green light; if
slightly overminused, green light will be clearer.   White light
appears equally clear to a slightly overplussed compared to a slightly
overminused eye.  When determining your glasses precription, the
examiner wants to make sure that both eyes are left in the same
condition:  both "in the green", both "in the red" or (ideal) both
with red and green equal.  If the two eyes are not left in the same
condition, there may be discomfort wearing the glasses.

If looking without glasses and with only a very small refractive
error, most myopes will see the red slightly clearer.   Hyperopes
should see the green clearer, but accommodation by the eye may affect
that result and they may see them equal or the red clearer.

Judy