The September 2026 AI Max Migration Is Already on Your Account’s Clock

Most ophthalmology marketing leads first hear about AI Max from a Google rep who frames it as an opportunity. The framing buries the deadline. Starting September 2026, Google forcibly migrates Dynamic Search Ads, automatically created assets, and campaign-level broad match into AI Max regardless of whether the practice opted in. If your agency has not surfaced this in the past two QBRs, the agency is not preparing the account for the migration, which means September will arrive with default settings the practice did not choose.

The exposure is highest for cataract, LASIK, and refractive accounts running DSA against condition-rich landing pages. Those pages are exactly the surface AI Max’s final URL expansion was built to crawl, and the same surface that creates HIPAA exposure when AI-generated headlines surface symptom or diagnosis language. Multi-location ophthalmology groups with rich service-line pages per location face compounded risk. The migration is not negotiable. The configuration on the migrated campaigns is. Practices that voluntarily migrate before September keep that configuration window. Practices that wait inherit Google’s defaults.

How AI Max Sits Between Search and Performance Max

AI Max is not a new campaign type. It is a three-feature suite layered inside existing Search campaigns. Feature one is search term matching, which adds broad and keywordless matching on top of your existing keyword targets so the campaign can reach queries no one explicitly bid on. Feature two is text customization, which generates ad headlines and descriptions dynamically from landing page content. Feature three is final URL expansion, which substitutes advertiser-provided URLs with dynamic landing pages selected from Google’s analysis of the site.

The control surface sits between traditional Search and Performance Max. Search gives the advertiser keyword-level control and pinned ad copy. Performance Max removes both. AI Max adds Performance-Max-style automation to keyword-anchored Search campaigns while leaving negative keywords, location controls, and bid strategies in place. The advertiser keeps account-level guardrails and gives up granular control of which queries trigger which ads and which landing pages serve which clicks.

For ophthalmology, the three features have very different risk profiles. Search term matching is the lowest-risk activation because the broadening it produces is bounded by your negative-keyword discipline and account-level location targeting. Text customization needs supervision because AI-generated headlines on cataract or glaucoma landing pages can surface clinical language that looks like targeting based on health conditions. Final URL expansion is the highest-risk feature because it routes paid clicks to URLs the advertiser did not choose, including condition-specific pages that should not receive cold traffic.

What the Numbers Say About AI Max Lift in Ophthalmology Conditions

Google reports approximately 14% more conversions at similar CPA and ROAS for typical AI Max activation, approximately 27% for accounts heavy on exact and phrase match, and approximately 7% incremental lift for full-suite activation versus search term matching alone (Google official, April 2026). Brainlabs found a 40% higher success rate when all three features were enabled together (PPC Live, April 2026). These are aggregated numbers across verticals, not ophthalmology-specific.

For surgical eye care, discount the headline lift figures by 20 to 40% until your own data proves otherwise. Ophthalmology category CVR runs 18.29% (LocaliQ 2025), well above healthcare averages, which means AI Max’s relative lift over a well-tuned baseline tends to be smaller than in lower-CVR verticals. Anchor any pre-migration baseline against the LASIK keyword $20 to $80 CPC range (Patient10x, Aug 2025) and the specialty-service tCPA floor of $85 to $125 (Ryze April 2026). Capture 30 days of pre-migration performance against these anchors so the post-migration comparison has a defensible reference. Pair the baseline with the broader ranges in our ophthalmology PPC benchmarks reference.

Treat the published lift ranges as directional benchmarks until your own account data validates them.

Five Red Flags Your Account Is Not Ready for the September Migration

The first red flag is DSA campaigns still running with no documented migration plan. The agency intends to ride the auto-migration in September. The result is settings the practice did not choose applied to campaigns already exposed to condition-rich landing pages.

The second is final URL expansion enabled on accounts that have not audited their landing page sitemap. Every condition-specific page becomes a potential destination for paid clicks routed by Google’s analysis, with no review of HIPAA exposure or message-match.

The third is no brand restrictions configured. Without explicit brand controls, AI Max can route brand-search clicks to non-brand pages or generate text that conflates competitor practices with yours, particularly in markets with multiple LASIK or cataract centers.

The fourth is no pre-migration performance baseline captured. The 30-day baseline is the only defensible reference against which post-migration performance can be evaluated. Practices that skip this step have no way to prove the migration helped or hurt.

The fifth is tracking templates not validated against dynamic landing pages. Final URL expansion routes traffic to URLs that may not carry the same UTM template structure as advertiser-provided URLs, which silently breaks attribution. Pair this audit with the AI Max HIPAA compliance walkthrough.

Pre-Migration Steps That Retain Control of Your Ophthalmology Account

Within the next 15 minutes, open the campaigns dashboard and inventory which campaigns currently use DSA, ACA, or campaign-level broad match. These are your auto-migration candidates. Document the list and circulate it to your agency with a deadline for migration planning.

Within 30 days, voluntarily migrate the highest-spend campaigns to AI Max with explicit feature selection. Turn search term matching on, default text customization to supervised mode with weekly review, and default final URL expansion off until URL controls and HIPAA-safe destination governance are documented. Capture a 30-day baseline of pre-migration performance against CVR, CPA, and lead-quality metrics.

Within 60 days, configure brand restrictions, location controls, and an explicit allow-list for landing pages eligible to serve paid traffic under final URL expansion. Validate tracking templates against the URLs in the allow-list. Tighten negative keyword lists to prevent expansion waste, particularly around employment, education, and informational queries adjacent to your service-line keywords.

By August 2026, complete the voluntary migration on all DSA, ACA, and broad-match campaigns so September arrives with no auto-migrations needed. The voluntary path keeps configuration choice with the practice. The auto path hands it to Google. The work is the same in either direction; the control is the variable.

Why the September Migration Is Not Optional but the Feature Mix Is

Our view is direct. The September 2026 migration is not optional, but the specific AI Max feature mix is. Eye care practices should turn on search term matching, carefully test text customization, and default final URL expansion off until HIPAA-safe landing page governance is proven. The accounts that arrive at September with documented baselines and explicit feature choices keep control. The accounts that arrive without preparation inherit defaults that may take 6 to 12 months to undo.

For the platform-level playbook covering when and how to use Performance Max and AI Max in healthcare without compromising lead quality or HIPAA compliance, see Performance Max and AI Max for Healthcare, What Actually Works.

The accounts that document baseline performance and feature choices before September hold control through the migration; the accounts that do not arrive inheriting defaults they did not choose.