Robert Lehmann is an Ophthalmology physician affiliated with Lehmann Eye Center. OpenAlex indexes 33 publications with 906 citations (h-index 15); ClinicalTrials.gov lists 1 registered study matched to this name.
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex, matched via ORCID.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Clinical & industry
trials, payments and federal fundingContact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
5300 North St
Nacogdoches, TX 759651370
Telephone
936-569-8278Registry record last updated 24 Sept 2012.
Clinical trials
- A Clinical Trial to Evaluate a Corneal Inlay for the Improvement of Near Vision in Presbyopic Patients
Sponsor: ReVision Optics, Inc.
Registered studies on ClinicalTrials.gov where the overall official or a site investigator name-matches this physician, confirmed against known institution/geography. Latest few shown; the full list is part of the full profile.
Industry payments
17 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Ocular Therapeutix, Inc.Program year20255 payments
- Tarsus Pharmaceuticals, Inc.Program year20252 payments
- Alcon Vision LLCProgram year20251 payment
Payment records matched to this physician's NPI in CMS Open Payments, program years 2021 onward.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- Comparison of visual function and patient-reported outcomes between two full range of field intraocular lenses: a randomized controlled study
Journal of Cataract & Refractive Surgery
2025 - Clinical performance of a hybrid presbyopia-correcting intraocular lens in patients undergoing cataract surgery in a multicenter trial
Journal of Cataract & Refractive Surgery
2023 - Rotational Stability of the Clareon Monofocal Aspheric Hydrophobic Acrylic Intraocular Lens 6 Months After Implantation
DOAJ (DOAJ: Directory of Open Access Journals)
2022
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A basic profile from our physician directory: identity and practice contact from the federal NPPES registry, research from OpenAlex, trials from ClinicalTrials.gov, payments from CMS Open Payments — shown itemized where we have matched records, as a count where we only have a total. This person hasn't been through our full identity-adjudication pipeline yet, so funding, congress activity and public presence aren't shown. Absence of a section means “not yet looked,” never “none found.”