Second Sight is approved for RP （视网膜色素变性）patients in the US and Europe. The number of people who are legally blind as a result of RP is seen at 25,000 in the US, 42,000 in Europe, and about 375,000 across the world. 由于产品Argus II还不能用来治愈所有legal blind的人，所以实际市场会比这个小一些。
公司的新产品也会在由于年龄老化而导致视力下降的的市场进行开拓，这方面市场就更大了。the market for age-related degeneration is much larger, with 552,500 patients in the US alone suffering from this condition as well as 1.08 million patients in Europe.