Publications by authors named "Isabel Weinstein"

4 Publications

  • Page 1 of 1

[Pronounced band keratopathy in Refsum's syndrome].

Ophthalmologe 2021 Jun 9. Epub 2021 Jun 9.

Klinik für Augenheilkunde, Universitätsklinikum des Saarlandes UKS, Kirrberger Str. 100, 66421, Homburg/Saar, Deutschland.

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http://dx.doi.org/10.1007/s00347-021-01428-yDOI Listing
June 2021

[Descemet Membrane Detachment after Complex Cataract Surgery - DMEK is Not Always Necessary].

Klin Monbl Augenheilkd 2021 02 12;238(2):162-165. Epub 2021 Jan 12.

Klinik für Augenheilkunde, Universitätsklinikum des Saarlandes, Homburg (Saar), Deutschland.

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http://dx.doi.org/10.1055/a-1268-9042DOI Listing
February 2021

Thickness and Curvature Changes of Human Corneal Grafts in Dextran-Containing Organ Culture Medium Before Keratoplasty.

Cornea 2021 Jun;40(6):733-740

Department of Ophthalmology, Saarland University Medical Center, Homburg/Saar, Germany.

Purpose: To determine the changes of corneal thickness and curvature of human corneal grafts in organ culture medium II, containing dextran T500 6%, before keratoplasty.

Methods: We examined the tomography of 24 corneas from our eye bank transferred from medium I into medium II. Images were repeated hourly during 24 hours using an anterior segment optical coherence tomography. The central corneal thickness (CCT) was measured with the manual measurement tool of the anterior segment optical coherence tomography. The radii of curvature (anterior flat and steep and posterior flat and steep) were measured with a MATLAB self-programmed software for "sterile donor tomography."

Results: The mean CCT (±SD) at baseline (T0) was 727 ± 156 μm. It reached 581 ± 103, 506 ± 84, 472 ± 79, and 456±7 μm after 6, 12, 18, and 24 hours, respectively. After 12 hours, 83% of the final deswelling was achieved. The radii of curvature (±SD) at baseline (T0) were (posterior flat, posterior steep, anterior flat, and anterior steep) 6.6 ± 0.5, 6.2 ± 0.5, 7.7 ± 0.4, and 7.4 ± 0.4 mm, respectively. After 24 hours, the radii of curvature reached 6.8 ± 0.1, 6.6 ± 0.3, 7.6 ± 0.1, and 7.4 ± 0.2 mm, respectively.

Conclusions: The kinetics of the deswelling process in medium II follow a hyperbolic curve. Considering a CCT of 506 μm at T12, we assume that a time interval of 12 hours in medium II might be enough for clinical purposes. This result might help to keep storage in medium II as short as possible to escape potential toxic effects of dextran in medium II. The radius of curvature does not seem to change within 24 hours for all measured surfaces.
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http://dx.doi.org/10.1097/ICO.0000000000002543DOI Listing
June 2021

[Distinctive Wessely immune ring in keratitis-a chameleon].

Ophthalmologe 2021 Jan;118(1):53-55

Klinik für Augenheilkunde, Universitätsklinikum des Saarlandes UKS, Kirrberger Str. 100, 66421, Homburg, Deutschland.

A Wessely immune ring can be found in various corneal infections as well as in non-infectious processes. Its appearance can aid in the differential diagnosis but can also be misleading. A definitive diagnosis can only be reached when all clinical and microbiological findings are taken into consideration. This article discusses and critically reflects on the differential diagnostic considerations and treatment strategies in the context of a case report on a 31-year-old patient with contact lenses and diffuse endothelial decompensation with a focal, mid-peripheral infiltrate and a Wessely immune ring.
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http://dx.doi.org/10.1007/s00347-020-01084-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7808994PMC
January 2021
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