Google and Meta solve two different problems, and conflating them is where a lot of ophthalmology ad budgets get wasted. Google captures demand that already exists — someone searches “cataract surgery near me” because they’ve already decided, on some level, that they have a vision problem worth addressing. Meta does something Google structurally cannot: it creates awareness in people who haven’t searched for anything yet, because they don’t know they have a problem.

For most ophthalmology procedures, the population who already knows they need surgery and is actively searching is a small fraction of the people who would actually benefit from care. The other 28 million Americans with undiagnosed cataract impairment aren’t typing anything into Google, because in their own minds there’s nothing to search for. They’ve adjusted their driving habits, their reading distance, their expectations — and filed the change away as normal aging rather than a medical issue.

This is exactly the audience Meta is built to reach, and Google is structurally unable to. Facebook and Instagram’s targeting works on interests, behaviors, and demographics rather than search intent, which means a practice can reach a 58-year-old avid golfer or pickleball player based on what they’re interested in — long before that person has connected their declining performance to their eyesight. By the time they would have searched Google, a competitor’s content may have already reached them first.

This is also why Meta tends to produce lower cost-per-lead for upstream, educational content even as Google’s cost-per-click for in-market procedure terms keeps climbing. You’re not bidding against every other ophthalmology practice for the same finite pool of in-market searchers — you’re reaching people before that pool exists for them, in a much larger and less contested space.

None of this makes Google useless — bottom-funnel search still captures real, ready-to-book demand and should stay in the mix. But treating Meta as a lesser, “supplementary” channel misunderstands what each platform is actually good at. Google finds people who already raised their hand. Meta is how you get them to raise it in the first place.