Now, in ACS Nano (“Gold Nanocomposite Contact Lenses for Color Blindness Management”), researchers report infusing contact lenses with gold nanoparticles to create a safer way to see colours.

https://nano-magazine.com/news/2021/3/4/gold-nanocomposite-contact-lenses-that-correct-color-blindness?ss_source=sscampaigns&ss_campaign_id=6048aa3ee45f7f1298df2de4&ss_email_id=604902680001155a00eb3315&ss_campaign_name=Gold+nanocomposite+contact+lenses+that+correct+colour+blindness&ss_campaign_sent_date=2021-03-10T17%3A32%3A46Z