Delayed postoperative opacification of three hydrophobic acrylic intraocular lens: A scanning electron microscopic and energy dispersive spectroscopic study
| Autor: | Harsha Bhattacharjee, Suklengmung Buragohain, Kasturi Bhattacharjee, Dipankar Das, Henal Javeri |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
genetic structures Senile cataract Scanning electron microscope medicine.medical_treatment Acrylic Resins Intraocular lens Electrons hydrophobic IOL Postoperative Complications Lens Implantation Intraocular Ophthalmology Microscopy medicine Humans Postoperative Period Lenses Intraocular First specimen Phacoemulsification business.industry delayed postoperative opacification RE1-994 Middle Aged Second specimen eye diseases Prosthesis Failure Microscopy Electron Scanning Biodegradation Full thickness Third specimen Original Article sense organs business |
| Zdroj: | Indian Journal of Ophthalmology Indian Journal of Ophthalmology, Vol 69, Iss 5, Pp 1103-1107 (2021) |
| ISSN: | 1998-3689 |
| Popis: | Purpose: The aim of this study was to report scanning electron microscopic (SEM) and energy dispersive spectroscopic (EDS) findings of three specimens of opaque hydrophobic acrylic intraocular lens (IOL) explanted in delayed postoperative period for visual indications. Methods: Clinical data and photographs from each subject were obtained. Explanted IOLs were examined under gross and light microscopy followed by SEM coupled with EDS. Results: All three subjects underwent IOL implantation following senile cataract extraction at an average age of 64.3 ± 0.3 years, and the IOLs were in situ for a duration of 11.3 ± 4.04 years. The IOL explantation and exchange were done due to late postoperative opacification of the IOL and significant visual deterioration. The milky iridescent opacity affected the full thickness of IOL optics in the first two specimens and in the third only two surfaces were involved. SEM detected surface cracks in the first specimen, typical conglumated surface, pores and accumulation of crystals with surface deposit of nano-particles on the second specimen and uneven surface erosion in the third specimen. SEM detected mainly sodium (Na) and chloride (Cl) spikes. All patients recovered normal vision following IOL exchange. Conclusion: SEM features of the IOL optics and absence of calcium and phosphate spikes in EDS and other findings were consistent and suggestive of hydrolytic biodegradation of hydrophobic acrylic IOL polymer in ocular media and was responsible for delayed postoperative opacification of the hydrophobic IOLs and visual loss. |
| Databáze: | OpenAIRE |
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