Freshlook colored contacts: Brown eyes?

I'd like to know whether the color enhancing contacts that freshlook sells are worth it. I have dark/medium brown eyes and I'd like to make them lighter. I have a perscription too.

Have any of you tried these contacts for brown eyes? How do they look? Were they much more expensive than regular clear contacts?

Thanks!

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Opti-free RepleniSH contact solution?

How much of a 2 OZ. Bottle do you use on a pair of contacts that lasts about a month? My bottle is almost out and it's only been 1 month.

Is it cheaper to buy a 4 OZ bottle or a 10 OZ bottle of the solution rather than a 2 OZ?

And is $12.50 for a bottle of 2 OZ Opti-free RepleniSH way over priced? Can I get it cheaper but have the same quality from Walmart or a bigger bottle?

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