BURNABY, British Columbia—The contact lens retailer PerfectLensWorld.com said it launched on Monday an online vision test and prescription service under the name i-Optex. i-Optex is “powered by” technology developed by Opternative, according to a spokeswoman for Chicago-based Opternative. The new partnership represents the latest in a string of collaborations between Opternative and online retailers that have been announced this year, including previous partnerships with the online CL retailers Sight Supply, EZContacts and LensDirect. Some of these firms have chosen to add their own branding to the Opternative-powered prescription and vision testing features.

“Our online vision test is still known as Opternative's online vision test,” a spokeswoman told VMAIL. “Each of our partners, like EZContacts or PerfectLensWorld.com, tend to name the online vision test service that we power to match their own brand.” The spokeswoman declined to provide the specific number of partners Opternative has added in 2018, but noted that “we have brought on over two dozen new partners so far this year.”

PerfectLensWorld.com is owned and operated by LM Global Enterprises Ltd., an e-commerce company with a global distribution center in Burnaby, near Vancouver.

PerfectLensWorld marketing director Hannu Rauma said in the announcement that “i-Optex is part of our continued commitment to delighting our customers and putting their needs first.” PerfectLensWorld offers the Acuvue, Air Optix and FreshLook contact lens brands, according to the announcement.

i-Optex allows users to complete a vision test for a prescription using a smartphone, home computer or tablet, according to the announcement. After the 15-minute test is completed, a licensed ophthalmologist from the user's state writes the prescription. The fee for the online test is $49.95 per prescription, per user.

The i-Optex test will provide prescriptions only for adults ages 18-50, and who have a vision prescription ranging from -9 to +3.5 in spherical strength. PerfectLensWorld currently provides lenses with minus powers, only.