Are a woman's frozen eggs less viable than if those eggs are fertilized and preserved as embryos?

Are a woman's frozen eggs less viable than if those eggs are fertilized and preserved as embryos?
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answer:Good question. I was interested enough to go and have a look at this and it seems that fertilised eggs – embryos – are much easier to freeze/thaw than unfertilised eggs. It’s to do with the formation of ice crystals. I am supposing that the UF eggs are that much smaller than an embryo which has already multiplied several times so the ice crystals affect it to a greater extent. So at the time in the case that you mention, this was the only available method. Now there is a new freezing process called Vitrification which more successfully freezes unfertilised eggs. So if this was happening now, this method could be offered. And, given the facts of this case, should be
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