- photo-recombination
- photorecombination
- photorecon
- photoreconnaissance
- photoreconversion
- photorecorder
- photorectifier
- photoredox reaction
- photoreduce
- photoreductant
- photoreduction
- photorefraction
- photorefractive
- photorefractive beam-fanning effect
- photorefractive crystal
- photorefractive crystals
- photorefractive effect
- photorefractive fanning effect
- photorefractive keratectomy
- photorefractive keratectomy, PRK
- photo-refractive materials
- photorefractive materials
- photorefractive optics
- photorefractive phase grating
- photorefractive polymer