Postoperative deposition of calcium on the surfaces of a hydrogel intraocular lens11The authors have no financial or proprietary interest in any product mentioned in this paper.

Werner, Liliana; Apple, David J.; Escobar-Gómez, Marcela; Öhrström, Arne; Crayford, Basil B; Bianchi, Roberto; Pandey, Suresh K

doi:10.1016/s0161-6420(00)00416-4

Cited by 162 publications

(39 citation statements)

References 22 publications

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“…These hydrophillic acryl IOLs include Hydroview (Bausch & Lomb) [1,2], ACRL-60 (Ophthalmed Inc., Carlsbad, NM, USA) [12], MemoryLens (Ciba Vision, Duluth, GA, USA) [3-5] and AquaSense (Ophthalmic Innovations International, Ontario, CA, USA) [9,10]. Several tens of cases of postoperative opacification have also been reported following the use of SC60B-OUV (Medical Developmental Research, Clearwater, FL, USA) [6-8].…”

Section: Discussionmentioning

confidence: 99%

“…The opacifications of an intraocular lens (IOL), necessitating the removal or exchange of the implanted IOL, has been reported in some hydrophilic acrylic IOLs [1-11]. According to associated studies, granular deposits responsible for the opacification were found on the optical surface or within optical material several months or several years after the operation [11].…”

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confidence: 99%

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Opacification of the Optic of an Akreos Adapt Intraocular Lens

Lee

Kim

Chang

2010

Korean J Ophthalmol

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A 60-year-old diabetic patient transferred to our retina clinic for a regular follow-up for diabetic retinopathy. He had uneventful cataract surgery at the time of pars plana vitrectomy in the right eye due to diabetic retinopathy at a private ophthalmologic hospital. Six months after the surgery, neovascular glaucoma with hyphema developed in the right eye and an Ahmed valve was implanted at our hospital. Ten months after cataract surgery, we found opacification of the intraocular lens (IOL) which was causing significant visual disturbance. At the time, the best corrected visual acuity (BCVA) in the right eye was hand motion. The IOL was explanted 45 months after the operation. Five months after explantation, the BCVA was 0.06. Unfortunately, pathologic analysis was not performed. Patient-related factors such as an anterior chamber reaction caused by hyphema might have been responsible for the opacification. To our knowledge, there are no previous reports of opacification of the Akreos Adapt IOL.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

Opacification of the Optic of an Akreos Adapt Intraocular Lens

Lee

Kim

Chang

2010

Korean J Ophthalmol

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“…They found no apparent cause for the opacification. However, the majority of the patients with IOL opacification had an associated systemic disease; therefore, the possibility of a patient-related factor, such as metabolic imbalance in diabetes cannot be underestimated [21,22,23,24]. …”

Section: Discussionmentioning

confidence: 99%

Effect of Ultraviolet B Radiation on the Absorption Characteristics of Various Intraocular Lenses

Koçak

Kaynak

İlknur³

et al. 2006

Ophthalmologica

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Background: The aim of this study was to determine the effect of ultraviolet B (UVB) exposure on UV filters of various intraocular lenses (IOLs). Methods: Eight samples each of the hydrophobic acrylic, hydrophilic acrylic and silicone IOLs were used. Four IOLs of each type was selected randomly as the control group while the remaining four IOLs of each type were exposed to a UVB dose of 1.4 J/cm² (2.40 mW/cm²) for 9.45 min, two times with a 4-week interval. IOLs were evaluated for any sign of opacification under microscope weekly. After a follow-up period of 16 weeks, spectrometry for UV filter absorption rates, scanning electron microscopy for deposit formation and energy dispersive X-ray analysis for elemental composition were performed for all IOLs, and findings of the control group IOLs were compared with those of the UVB-exposed IOLs. All these procedures were done at the Department of Ophthalmology, Faculty of Medicine, Dokuz Eylul University. Results: All the IOLs were free of any opacification during the follow-up period. Spectrometric analysis of their UV filters revealed a change in absorption rates in the hydrophilic acrylic and silicone IOLs compared to the control IOLs of the same type. Only the hydrophobic acrylic IOLs preserved the same UV absorption curve after UVB exposure. Conclusion: The pathogenesis of IOL opacification is still undetermined. Some reports claimed that the UV light was the responsible factor. Our experimental study revealed that high doses of UVB did not cause any opacification though they impaired the function of UV filters of the hydrophilic acrylic and silicone IOLs.

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“…Deposits, composed mainly of calcium-containing mixtures or inflammatory cells [1234], may form on the surface of an intraocular lens (IOL) implanted during cataract surgery. In severe cases, a significant decrease in visual acuity may necessitate IOL replacement [1].…”

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confidence: 99%

“…In severe cases, a significant decrease in visual acuity may necessitate IOL replacement [1]. In this case report, we describe a patient who had refractory deposits on an IOL that spontaneously disappeared after Ahmed valve implantation was performed to control intraocular pressure (IOP).…”

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confidence: 99%