New York City-based Simple Contacts has a mission: make replacing contact lenses cheaper, easier and faster. By developing an iOS-based app (Android soon to follow), that uses online consultation and a smartphone-based eye test, the company is on its way to doing just that, and a recent $2 million in seed funding will further expand the service.

According to Tech Crunch, who first reported the funding, the seed round was led by Autonomous Ventures and included Twitch founder Justin Kan, CityMD founder Richard Park, and a number of doctors.

Available in 20 states, the app guides users through a vision test that they perform wearing their contacts. Then, they select their current prescription and brand, and within 24 hours a licensed ophthalmologist will review the test results and prescription to verify and order a new prescription.

As many app-based vision services have caught heat from the American Optometrics Association, who say that such apps create a false sense of security and encourage people to forego critically important eye health exams, Simple Contacts has been careful to articulate a different business model.

While an optometrist (licensed in the user's state) does write out a renewed prescription for the user based on the in-app test, Simple Contacts is clear that they won't offer a new prescription if the user's vision has changed, nor do they offer the service to anyone who's gone five or more years without an eye exam. Rather, they are simply making sure that the users’ existing lens prescription is still working out for them. The company also lays out a long list of conditions (mostly eye diseases or chronic conditions that affect eye health) that the app specifically cannot help.