1. Articles from Peter C. Hoffmann

    1-2 of 2
    1. Comparison of a new optical biometer using swept-source optical coherence tomography and a biometer using optical low-coherence reflectometry

      Comparison of a new optical biometer using swept-source optical coherence tomography and a biometer using optical low-coherence reflectometry

      Purpose To investigate agreement between the IOLMaster 700 based on swept-source optical coherence tomography (SS-OCT) and the Lenstar LS 900 based on optical low-coherence reflectometry (OLCR). Setting Private practice, Castrop-Rouxelle, Germany. Design Prospective evaluation of diagnostic test. Methods Axial length (AL), keratometry (K), anterior chamber depth (corneal epithelium to lens) (ACD), lens thickness, and central corneal thickness (CCT) were measured in 183 eyes of 183 patients. Analyses used a paired t test, Pearson correlation coefficient ( r ), and Bland-Altman plots. Intraocular lens (IOL) power calculations were compared using the Hoffer Q, Holladay 1, and SRK/T formulas. Results The difference in ...

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      Mentions: Giacomo Savini UCLA
    2. Prediction of Residual Astigmatism After Cataract Surgery Using Swept Source Fourier Domain Optical Coherence Tomography

      Prediction of Residual Astigmatism After Cataract Surgery Using Swept Source Fourier Domain Optical Coherence Tomography

      Purpose : To compare corneal measurements obtained by a swept source fourier domain OCT (CASIA SS-1000), an autokeratometer (Haag-Streit Lenstar), a hybrid topographer (Tomey TMS-5), a Placido topographer (Tomey TMS-5 in Placido mode) and a Scheimpflug tomographer (Oculus Pentacam) to manifest subjective refraction. Methods : One hundred and four pseudophacic patients with non-toric IOLs were measured at least 6 months after surgery . Corneal astigmatism as measured on the anterior corneal surface as well as total corneal astigmatism including posterior surface data was compared to manifest refractive cylinder (cross-cylinder strategy) by computing difference vectors and correlation analysis of power vectors. Results : The OCT ...

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    1-2 of 2
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    1. (1 articles) UCLA
    2. (1 articles) Giacomo Savini
    3. (1 articles) Oliver Findl
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    6. (1 articles) Haag-Streit
    7. (1 articles) Oregon Health & Science University
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