Publications by authors named "R N Gaster"

Purpose: To evaluate the safety and efficacy of epithelium-off (epi‑off) corneal cross-linking (CXL) in patients with post-LASIK corneal ectasia (PLE) SETTING: Private clinical practice DESIGN: Prospective clinical trial METHODS: 82 eyes of adult patients post-LASIK, ages 21-67, with a topography pattern consistent with corneal ectasia, corrected distance visual acuity (CDVA) worse than 20/20, and minimum corneal pachymetry > 400 µm underwent epi‑off CXL. Exclusion criteria were patients with corneas that were thinner than 400 μm or demonstrated central corneal scarring, history of herpetic eye disease, pregnancy or nursing. Follow up examinations of spherical equivalent, uncorrected distance visual acuity (UDVA), CDVA, steep keratometry (K) and minimum pachymetry occurred on different but highly overlapping subsets of the operated eyes yearly until 5 years post-CXL.

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Purpose: To evaluate the safety and efficacy of epithelium-off (epi-off) corneal crosslinking (CXL) in adolescents with progressive keratoconus (KC).

Setting: Private clinical practice.

Design: Nonrandomized prospective clinical trial.

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A 24-year-old female underwent small incision lenticule extraction (SMILE) for myopic astigmatism OU. In the left eye, cap-lenticular adhesion along with tearing of the cap occurred, resulting in a gaped incision and transverse striae involving the visual axis on the first post op day. Uncorrected distance visual acuity (UDVA) was 20/32.

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Advances in precision molecular imaging promise to transform our ability to detect, diagnose and treat disease. Here, we describe the engineering and validation of a new cystine knot peptide (knottin) that selectively recognizes human integrin αvβ with single-digit nanomolar affinity. We solve its 3D structure by NMR and x-ray crystallography and validate leads with 3 different radiolabels in pre-clinical models of cancer.

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Article Synopsis
  • A case study reports a woman with keratoconus who suffered bilateral corneal perforations after undergoing corneal cross-linking (CXL), potentially linked to mutations in the ZNF469 gene that she shares with her daughter.
  • Both individuals displayed similar corneal issues, but the daughter, who didn't have the procedure, did not experience perforation, suggesting that CXL may pose risks for certain genetic backgrounds.
  • The research highlights the need for identifying genetic risk factors like ZNF469 mutations to prevent severe complications from CXL in individuals with keratoconus.
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