Results of Scanning Electron Microscopy of Explanted Hydrophilic Acrylic IOLs
https://doi.org/10.18008/1816-5095-2021-2-276-283
Abstract
Purpose: study the microscopic examination and microtopography of explanted hydrophilic acrylic IOLs with opacification.
Material and methods. 5 samples of soft hydrophilic acrylic IOLs produced in European countries and the USA were studied. Explanted IOLs were studied using a scanning electron microscope (EVO LS10, Karl Zeiss, Germany-UK).
Results. In 4 cases changes in hydrophilic acrylic IOL had the character of surface opacification in the area of the anterior wall of the optical element of the lens with localization in the Central zone (pupil area). In one case, the opacities were located over the entire surface of a hydrophilic IOL having a hydrophobic coating. The changes were characterized by the formation of crystalline deposits on the IOL surface at different stages of evolution. In the initial stage, primary point precipitates with sizes of 3–5 microns were formed. At a later stage, the changes had the form of “adult” spherocrystals with a typical radial-concentric zonal structure, up to 50 microns in size. In one of the of IOLs, the growth of crystals under the surface of the lens — in the thickness of IOLs was determined.
Conclusion. The changes characterize different stages of the same type of pathological process with sedimentation of crystal deposits on the surface of IOL with changing crystallomorphology.
About the Authors
A. A. Gamidov
Research Institute of Eye Diseases
Russian Federation
Russian Federation
MD, senior researcher of the Modern Treatment Methods in Ophthalmology Department
Rossolimo str., 11A, B, Moscow, 119021
I. A. Novikov
Research Institute of Eye Diseases
Russian Federation
Russian Federation
senior researcher the of Basic Research in Ophthalmology Department,
Rossolimo str., 11A, B, Moscow, 119021
A. A. Tsymbal
I.M. Sechenov First Moscow State Medical University
Russian Federation
Russian Federation
MD, Professor of Pathological physiology Department,
Rossolimo str., 11A, B, Moscow, 119021
R. A. Gamidov
I.M. Sechenov First Moscow State Medical University
Russian Federation
Russian Federation
student,
Rossolimo str., 11A, B, Moscow, 119021
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Review
For citations:
Gamidov A.A., Novikov I.A., Tsymbal A.A., Gamidov R.A. Results of Scanning Electron Microscopy of Explanted Hydrophilic Acrylic IOLs. Ophthalmology in Russia. 2021;18(2):276-283. (In Russ.) https://doi.org/10.18008/1816-5095-2021-2-276-283
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