If you choose default replacements, please make sure that you don't have any other default replacement eye files in your mods folder, or they will conflict and you won't be able to change your sims eyes. Default replacements, non-defaults or contacts.These eyes have been up for a while on my Simblr, but I forgot to upload them here, so here they are for anybody who may like them!
UPDATE - Now fixed for infants! - Also fixed Vampire eyes being strange and floating on other ages: redownload the replacements file and download the extra file for infants if you'd like it!