Success Story: NAILG Overcomes RFE to Secure EB-1A Approval for a Biomedical Optics Specialist in Cancer-Focused Imaging
Client’s Testimonial:
"Thank you so much. I truly appreciate your help in getting my case approved.”
On December 12th, 2025, we received another EB-1A (Alien of Extraordinary Ability) approval for an Assistant Professor in the Field of Biomedical Engineering (Approval Notice).
General Field: Biomedical Engineering
Position at the Time of Case Filing: Assistant Professor
Country of Origin: China
State of Residence at the Time of Filing: Wisconsin
Approval Notice Date: December 12th, 2025
Processing Time: 4 months, 5 days (Premium Processing Upgrade Requested)
Case Summary:
Some EB-1A cases are decided on the initial record. Others become endurance tests, where the outcome depends on whether the evidence can be reorganized and re-explained under skeptical review. This case received a Request for Evidence (RFE), requiring North America Immigration Law Group (Chen Immigration Law Associates) to tighten the presentation and show, in plain terms, why the client’s work reflects sustained acclaim at the top of the field.
The client is a biomedical engineering researcher with specialized expertise in biomedical optics, including optical coherence tomography (OCT), breast tumor imaging, and endoscopic device engineering. A central theme of the client’s work is improving how clinicians and researchers extract reliable diagnostic information from optical signals. The record also emphasized the client’s work designing imaging systems to support tumor margin assessment during surgery, a direction aimed at improving the completeness of tumor removal and reducing recurrence risk.
To align this technical work with EB-1A standards, we organized the record around three credibility anchors:
- A specialized technical foundation: Ph.D. in biomedical engineering, supporting that the client has deep training in biophotonics and biomedical optics for designing and evaluating advanced biomedical imaging systems.
- A track record of peer-validated output: 9 peer-reviewed journal articles (4 first-authored), 3 peer-reviewed conference articles (2 first-authored), 2 first-authored abstracts, and 2 preprints (1 first-authored). The petition framed this as sustained work in a cohesive technical direction, not a one-off set of projects.
- Independent reliance and trust signals: at least 70 completed peer reviews and 125 citations. These metrics were not treated as self-explanatory. The case tied them to how the community measures impact: review invitations reflect professional trust in the client’s judgment, while citations indicate that other researchers are using the client’s findings and models as inputs for their own work.
When the case entered the RFE stage, the strategy focused on making the record easier for a non-specialist adjudicator to assess by presenting the client’s work as a coherent set of advances in OCT, tumor imaging, and portable diagnostic device engineering. We emphasized independent reliance on the client’s models by other research teams to establish major significance and highlighted repeated peer-review invitations as an independent indicator of professional standing and technical authority.
To corroborate the objective evidence, the petition included five letters of recommendation, including multiple independent advisory opinions from experts familiar with the client’s work through reading and relying on the published research. One expert noted: “Therefore, the continuation of [Client]’s ongoing research in the U.S. is essential.”
USCIS approved the EB-1A I-140 petition after the RFE response. The outcome reflects what EB-1A cases often require under heightened scrutiny: disciplined organization of the record, clear explanations that connect contributions to field-wide value, and objective evidence of independent reliance and sustained peer-review trust.

