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Treatment of corneal haze with nanoparticles. Corneal haze was developed in rabbit corneas using −9.0 diopter photorefractive keratectomy (PRK) with excimer laser. Representative stereomicroscopy (A,B) and slit-lamp (C,D) images of laser-ablated rabbit corneas that received a single 5 min topical application of PEI2-AuNPs nanoparticle transfection solution without BMP7 (A,C) or with BMP7 expressing gene (B,D) obtained four weeks after PRK.
