FDA product code · Ophthalmic · Class 2

OBO: Tomography, Optical Coherence

OBO is FDA's product code for "Tomography, Optical Coherence": a Class 2 device classified under 21 CFR 886.1570, reviewed by the Ophthalmic panel.

510(k) review time for OBO

Across 36 510(k) clearances under OBO decided from 2018-01-01 to 2026-10-06, the median was 157 days from FDA receipt to decision. Half took between 112 and 219 days, and 80% were decided within 253 days. These are past clearances, not a forecast for a new submission.

Days from FDA receipt to 510(k) decision, OBO, decisions 2018-01-01 to 2026-10-06 (n = 36)
Fastest23
25th percentile112
Median157
75th percentile219
80th percentile253
90th percentile302
Slowest456
Median days by decision year, OBO (years with enough clearances to compute). The partial final year counts only submissions already decided, so its median runs low.
YearMedian daysn
2018876
20192495
20232627
20241578

Source: openFDA 510(k) records, snapshot of 2026-10-06 (openFDA data as of 2026-09-28). Compare 510(k) review times across all device types, see every code side by side in the Clearance Timeline Estimator, or browse the clearances themselves in PredicateScope.

OBO in the public FDA record

Records naming OBO, from openFDA (snapshot of 2026-09-15)
510(k) clearances, all years66
Device recalls11
Establishment listings93

Counts of records, not of devices or events. Adverse event reports for OBO are in MAUDEScope, as counts with the query shown: MAUDE has no denominator, so a report count is not a rate and does not show that a device caused an event.

FDA-recognized standards that cite OBO

4 FDA recognized consensus standards cite OBO, 2 of them recognized only in part, among them ISO 15004-1 Second edition 2020-5; ISO 16971-1 First edition 2024-11; NEMA PS 3.1 - 3.20 2024e. Horizontal standards such as biocompatibility, sterilization and software standards can apply without citing the code.

  • 10-123 ISO 15004-1 Second edition 2020-5 (partial recognition) — Ophthalmic instruments - Fundamental requirements and test methods - Part 1: General requirements applicable to all ophthalmic instruments
  • 10-138 ISO 16971-1 First edition 2024-11 (partial recognition) — Ophthalmic instruments - Optical coherence tomographs - Part 1: Optical coherence tomographs for the posterior segment of the human eye
  • 12-363 NEMA PS 3.1 - 3.20 2024e — Digital Imaging and Communications in Medicine (DICOM) Set
  • 12-385 NEMA PS 3.1 - 3.20 2025d — Digital Imaging and Communications in Medicine (DICOM) Set

Source: FDA Recognized Consensus Standards, snapshot of 2026-09-01. Search them all in the Consensus Standards Lookup.

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