Worked Example: This case study uses a hypothetical practice profile and industry-benchmark response rates to illustrate typical campaign outcomes. It is not a real customer testimonial. We label every example clearly because real case studies require real customer permission — and PostKnock is in early launch.

Optometry Insurance Benefits Recall: $19K From 800 Postcards

Updated May 2026 · 6 min read

This is a worked example of an optometry "use-it-or-lose-it" benefits recall campaign, modeled on a typical solo-doctor practice. We use industry-benchmark response rates and PostKnock's actual pricing to show what the year-end vision-benefits window can produce when you put a postcard in patients' hands at the right time.

Practice Profile

Our hypothetical practice is Clear Vision Optometry, a single-doctor optometry practice with a small optical dispensary. Specifics:

  • Team: 1 OD, 1 optician, 1 part-time tech, 1 front desk
  • Active patient panel: 1,800 patients seen in the last 24 months
  • Patients with vision benefits expiring before year-end: 800 (the campaign pool)
  • Plans accepted: VSP, EyeMed, Davis, Spectera, Avesis
  • Average exam-plus-eyewear ticket: $400 ($175 exam reimbursement + $225 net eyewear contribution after frame allowance)
  • Multi-pair (Rx + sunglasses) attach rate: 30% when prompted at the dispensing table
  • Existing recall: Quarterly email blast, 2.1% click rate, ~6 booked exams per quarter from this segment

The Year-End Insurance Window

Almost every patient with a calendar-year vision plan loses unused benefits on January 1. The annual exam, frame allowance, and lens benefit reset. Patients understand this in the abstract but routinely forget about it until early December — by which point the schedule is full and the optical can't get glasses delivered before year-end.

A September/October recall campaign solves both problems at once: the message ("you're about to lose money you've already paid for") writes itself, and the timing gives the practice room to fit patients in before the holiday compression. Clear Vision had been running an email blast at this point in the year for years and getting maybe a 1% lift. The owner suspected the message was right but the channel was wrong.

Campaign Setup

A 2-wave Insurance Benefits Reactivation playbook running across late September and late October, with a phone follow-up sweep between waves:

Plan: PostKnock Pro at $99/month (1 month covers the active campaign window)

Postcard size: 6x9 (room for a benefits-expiration calendar visual)

Per-card cost: $0.79 (Pro pricing, includes print, address, postage)

Audience: 800 patients with calendar-year vision benefits expiring 12/31

Total cards: 800 × 2 waves = 1,600 cards

Postcard spend: 1,600 × $0.79 = $1,264

Total campaign cost: $1,264 + $99 = $1,363

Copy That Worked

The headline doing the heavy lifting on Wave 1:

"Don't lose your vision benefits on December 31. Most patients leave $200–$400 on the table every year. We can help you use them — book before the schedule fills up."

Wave 2 used a calendar-themed visual with a deadline countdown and the headline:

"Only 8 weeks left to use your 2026 vision benefits. Last appointment slots filling up — reserve yours today."

Both cards included a personalized first-name greeting, a QR code to the online booking page, and a phone number large enough to read at arm's length.

Wave-by-Wave Performance

Wave 1 (Late September) — "Don't Leave Money on the Table"

The benefits-expiration framing. Day 4 phone follow-up to non-responders.

Modeled response: 3.5% from card + 1% from call follow-up = 36 booked exams

Wave 2 (Late October) — "8 Weeks Left"

Hard countdown framing. Light follow-up call pass.

Modeled response: 1.5% of remaining 764 = 12 additional booked exams

Cumulative response: 48 booked exams — a 6% rate against the 800-patient list. Comfortably inside the 5–9% house-list benchmark, helped by the strongest message-market fit in healthcare direct mail: a deadline you didn't have to invent.

ROI Analysis

  • Booked exams: 48
  • Average exam-plus-eyewear ticket: $400
  • Base ticket revenue: 48 × $400 = $19,200
  • Multi-pair upsell: 30% of 48 = 14 patients add a second pair (Rx sunglasses, computer glasses) at $250 average net = +$3,500
  • Total Year-1 revenue: $22,700
  • Total campaign cost: $1,363

First-year ROI: $22,700 / $1,363 = 17:1

Cost per acquired exam: $1,363 / 48 = $28.40. At a $400 ticket and a typical 3-year exam cadence, the LTV:CAC ratio on this segment is roughly 40:1.

Lessons Learned (from the Worked Model)

  • Mail by the last week of September. Earlier is too vague ("December feels far away"). Later compresses the schedule. The first 10 days of October consistently produce the highest response.
  • Use the actual benefits language patients see. "Frame allowance," "exam co-pay," "lens benefit." The less you make patients translate your marketing copy into their plan terminology, the more they trust the message.
  • The optician closes the loop. A 30% multi-pair attach rate isn't automatic. It comes from training the optician to ask, "Do you spend a lot of time on screens or driving?" at the dispensing table.
  • Segment by plan type. Plans with use-it-or-lose-it eyewear allowances respond at the high end of the benchmark. Plans with rollover allowances respond closer to the low end. If your PMS lets you pull the segment, do it.

Run the Numbers for Your Practice

Plug your patient count, average ticket, and target response rate into our postcard ROI calculator to model what a benefits-recall campaign returns for your practice. For more on optometry recall mechanics and copy patterns, see our patient recall best practices guide and the PostKnock for optometry overview.

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