
From my research, there seems to be 2 things that we need to know about egg quality when it comes to IVF: mitochondria and chromosomes.
Mitochondria - the battery pack for the embryo
Good eggs supposedly have high levels of mitochondria. Upon fertilisation, the cells in the embryo needs to divide and multiply and that needs energy. Mitochondria provides the embryo with the energy to grow, especially in the first week from fertilization to successful implantation.
Poor quality eggs basically have battery packs that are flat or half-full. I had 9 eggs that were fertilised through ICSI but 5 did not develop further. Their battery packs were possibly empty.
Chromosomes - the soul of the embryo
If there are abnormalities in the chromosomes, the egg would not be able to develop properly. Out of the remaining 4 eggs that grew, 2 had abnormalities in the chromosomes.
That only leaves me with 2 eggs - 1 of which was growing well while the other had a half-pack battery pack.
So, back to the analogy of the apple, there is no way to reverse and make the apple all white and fresh again. Similarly, there are currently no proven ways to improve egg quality. But this doesn't mean that all hope is lost. There are still edible white areas, just much lesser. We could try to slow down the 'browning of the apple' by taking better care of our health. Will share in later posts on my findings.