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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryIndustryMedical Technology IndustryLuganoStroma Medical Sagl
Stroma Medical Sagl Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Stroma Medical Sagl develops the Strōma Laser System, a patented medical laser technology designed to change eye color by treating the thin surface layer of iris pigment. The website states the procedure is non-surgical, performed in a doctor’s office with topical anesthetic in short sessions, and that the system is a clinical-stage device intended for lease to refractive surgeons.

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Products & services

Industry:Medical Technology Industry
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4.1/5

Stroma Medical Sagl

3
Treatment for permanent eye colour change (Strōma® Laser System)
Non-invasive outpatient treatment to change dark eyes to naturally appearing amber, hazel, grey/blue shades, blue or green; with local anaesthesia, less than one minute per eye.
Strōma® Laser System
Patented laser technology for permanent eye colour change, intended for leasing to refractive surgeons and LASIK-certified ophthalmologists worldwide.
Survey on eye colour change
Online survey on interest in and demand for permanent eye colour change; used to collect feedback from potential patients.
Trust & reputation

ranQ Trust Score of Stroma Medical Sagl: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Stroma Medical Sagl has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
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CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Stroma Medical Sagl scores 67.8 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.64.612%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
Stroma Medical Sagl scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).83.322%
Stroma Medical Sagl scores 91.4 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.91.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Stroma Medical Sagl reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Via Trevano 38
6900 Lugano

At a glance

Legal form
Limited Liability Company
UID
CHE-397.904.585
Founded
2021 · 5 years
Last commercial register change
November 11, 2021
Employees
1 to 10
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
88.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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