https://openophthalmologyjournal.com/VOLUME/16/ELOCATOR/e187436412206061/FULLTEXT/
Neutral Density Filters as a Tool for Cycloplegic Plusoptix-Photorefractor Measurements: An...
Neutral Density Filters as a Tool for Cycloplegic Plusoptix-Photorefractor Measurements: An Explorative Study
neutral densityfilterstoolcycloplegicphotorefractor