Temat: calcium deposits - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Band keratopathy - chelation or therapeutic photokeratectomy
Autorzy:: Alsoubie, Ismael
Pyza, Aneta
Kaczmarek, Julia
Czarnacka, Kinga
Prokop, Dominika
Kuźlik, Bartosz
Chmura, Alicja
Pandey, Ada
Gawlak, Małgorzata
Żaczek, Bartłomiej
Sajak-Hydzik, Katarzyna
Pawlicka, Ilona
Piskorz, Agnieszka
Kozak, Maciej
Roszkowska, Anna Maria
Powiązania:: https://bibliotekanauki.pl/articles/23202547.pdf
Data publikacji:: 2023-09-30
Wydawca:: Medical Education
Tematy:: band keratopathy
calcium deposits
EDTA chelation
phototherapeutic keratectomy
excimer laser
corneal degeneration
ethylenediaminetetraacetic acid
Opis:: Corneal degeneration changes corneal shape and causing its translucency disappear. The division of corneal degeneration is made according to the type deposited in its layer. Among the factors causing keratopathy, the following can be mentioned: iron, collagen, hemosiderins, and calcium salts, the last ones cause band keratopathy. This feature is characteristic of the deposition of opacities in the superficial layers of the cornea. In the treatment of band keratopathy, ethylenediaminetetraacetic acid chelation and excimer laser phototherapeutic keratectomy are discussed.
Źródło:: OphthaTherapy; 2023, 10, 3; 195-199
2353-7175
2543-9987
Pojawia się w:: OphthaTherapy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Influence of glistening and calcium deposits in artificial intraocular lenses on retinal image quality – numerical model
Autorzy:: Geniusz, M.
Zajac, M.
Powiązania:: https://bibliotekanauki.pl/articles/173584.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: intraocular lens (IOL)
glistenings
modulation transfer function
MTF
calcium deposits
Opis:: In modern ophthalmology the natural eye lens is sometimes replaced with an artificial implant – intraocular lens which remains in the eye for a long time. This can lead to the formation of numerous microdefects occurring on the intraocular lens surface or inside its volume. The most common include calcium deposits or microvacuoles referred to as glistenings. The presence of those defects causes deterioration of retinal image thus lowering the quality of vision. The purpose of this research is to develop a numerical model of human eye with intraocular lens burden with defects useful to predict the impact of calcium deposits and glistenings on the retinal image quality. The calculations made in accordance with this model suggest that the quality of retinal image deteriorates when the density of defects increases, but the degree of image deterioration does not depend on the location of the defects and transmittance of individual particles. The main deterioration effect is observed for low spatial frequencies (< 12 cycles/deg) both in case of calcium deposits and glistenings while for the spatial frequency of 30 cycles/deg the changes in modulation transfer function are insignificant. The presence of microvacuoles in the intraocular lens influences the worsening of modulation transfer function parameters only for the diameter of microvacuoles greater than 10 μm.
Źródło:: Optica Applicata; 2017, 47, 3; 341-350
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

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