Anais, no, if glasses were not invented I would still have an impairment, not a disability. A society in which glasses were not invented would have to organise itself in such a way that people who had less than perfect vision were not treated equally for me to have a disability.
They would, for example, have to use blackboards in classrooms that I couldn't read (rather than just changing their equipment so that I could read it), not make street signs larger, not allow me to sit in particular parts of the cinema that made it possible for me get a clear view, organise jobs in such a way that people with perfect vision couldn't do them, even when the job could be easily modified to accommodate my impairment.
If almost everybody had less than perfect vision, society would simply be organised around them and we might cast aspersions on people with better vision. In the land of the blind, the one eyed man is not king; he's just a freak with a socially irrelevant skill.
In much the same way, we don't consider people who do not have the running skills of an olympic athlete to be disabled, we simply organise society so that it accommodates people with a wide range of different levels of physical fitness.
The same applies to women and the particular physical differences they have. We could reverse the current situation and treat not being able to get pregnant and breast feed your own children as a massive disadvantage in the work place.
We could claim that men, as they can't get pregnant, don't have the insight that pregnancy hormones bring, that their brains are befuddled by their lack of wider hormonal experiences, that they can't be as intellectually skilled or responsible or hold positions of leadership because they can't get pregnant. W could claim that nursing a small baby is the ultimate in leadership experience. We could also then criticise men for spending too long at work. Why are they so slow at getting the job done? Why are they so needy that they can't fill their time outside of work. Presumably because they can't get pregnant so have no proper concept of leadership, social skills or responsibility. Presumably they can't succeed at work because they have evolved to spear gazelle which is not a useful skill in the modern workplace, bless them.
But we don't say those things because they are ridiculous. They are equally ridiculous when reversed and used against women.