Abstract:
BACKGROUND:Soft intraocular lenses (IOLs) have been developed to be folded during insertion to allow implantation through a small incision. The surface of the IOL is of great importance in postoperative inflammation and long-term acceptance of the implant. Rough and sharp edges can damage delicate intraocular tissues. The purpose of this study was to analyze new, foldable silicone IOLs for surface quality prior to and following folding. MATERIALS AND METHODS:Eleven silicone IOLs of different types were included in this study (four one-piece plate-haptic silicone IOLs and seven three-piece silicone IOLs with polypropylene, PMMA or polyimid haptics). We performed scanning electron microscopy on brand-new IOLs prior to and following folding either with forceps or inserter. Special attention was given to the silicone optic surface, optic edges, haptic-optic junctions and the haptic itself. Photographs were taken at 5-350 times magnification. RESULTS:All IOLS demonstrated a smooth and homogeneous optic surface at low magnification. At high-power magnification (X 350), distinctive surface patterns were evident in some IOLs, which turned out to be artefacts. The edge finish showed surplus silicone material and molding flash in six of 11 IOLs. Positioning holes of the 4 plate-haptic IOLs were, except in one IOL, rounded and not rough. Photographs of the haptic-optic junctions revealed surplus material or clefts between the haptic and optic in six of the 7 three-piece IOLs; the loop ends of two IOLs showed a roughened or irregular surface. We did not detect any IOL changes produced by folding. CONCLUSIONS:The silicone IOLs tested demonstrated generally acceptable surface properties, but most IOLs had regional surface irregularities of varying magnitude. The clinical impact of these remains to be established, but surplus material or surface defects might result in deposition of inflammatory cells, protein or microorganisms and synechia formation. Folding of the IOLs did not produce superficial defects.
journal_name
Klin Monbl Augenheilkdjournal_title
Klinische Monatsblatter fur Augenheilkundeauthors
Kohnen T,Magdowski G,Koch DDdoi
10.1055/s-2008-1035377subject
Has Abstractpub_date
1995-10-01 00:00:00pages
253-63issue
4eissn
0023-2165issn
1439-3999journal_volume
207pub_type
杂志文章abstract::Surgery of the iris is of essential importance in anterior segment surgery. In angle closure glaucoma a peripheral iridectomy performed early enough, when the trabeculum is not yet altered, is curative. In simple glaucoma if a filtering operation is performed, the iridectomy is fundamental in order to have a good comm...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:
更新日期:1977-12-01 00:00:00
abstract::The sensitivity of confocal microscopy ranges between 80 and 90% and thus lies above the sensitivity of pathogen identification by microbiological culture. Typically, in vivo confocal microscopy enables us to diagnose mycotic keratitis non-invasively and atraumatically on the day of admission. Herein we present a pati...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:10.1055/a-0983-1752
更新日期:2019-12-01 00:00:00
abstract::Arteriovenous malformation is a rare vascular disease of the orbit that has to be differentiated from arteriovenous fistulas (e.g., of the carotid sinus), arterial aneurysms, the varices and the angiomas. It develops in the presence of an underlying constitutional maldifferentiation of the vascular bed but usually onl...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:10.1055/s-2008-1046343
更新日期:1989-02-01 00:00:00
abstract::The biological significance of autophagy in the metabolism of visual cells is discussed. In the process of autophagy, parts of the cytoplasm including cell organelles are surrounded by membranes. This formation is called an autophagic vacuole. Then, the contents of the vacuole are degraded by enzymes. Autophagy is a w...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:
更新日期:1978-09-01 00:00:00
abstract:PURPOSE:We present a visual acuity test for proof of malingering and psychogenic impairment of visual acuity. METHOD:The book contains 36 plates. On 32 plates, a Landolt-C is shown with a gap of 10 minutes of arc, thus corresponding to a visual acuity of 0.1, when applied at a distance of 1 metre. Each of the 4 altern...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:10.1055/s-2001-16258
更新日期:2001-06-01 00:00:00
abstract:BACKGROUND:Xerophthalmia, the eye manifestation of vitamin A deficiency, is one of the main reasons of blindness in developing countries but is rare in industrial countries. PATIENTS:We report on 2 cases of night blindness and conjunctival and corneal xerosis because of hypovitaminosis A. One patient developed vitamin...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:10.1055/s-2000-10386
更新日期:2000-07-01 00:00:00
abstract::In anophthalmos the forces which stimulate development and growth of the bony orbit are absent. As a result these cases have not only a tiny socket but also an underdeveloped bony orbit, which cannot retain an artificial eye. The small conjunctival sac and bony orbit can be mechanically enlarged by means of Hema socke...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:10.1055/s-2008-1050502
更新日期:1987-09-01 00:00:00
abstract::Between january 1986 and december 1989 we prospectively studied 211 patients with branch retinal vein occlusion (BRVO). Documented by fundus photography and fluorescein angiography clinical and angiographic findings were analysed. The age ranged from 28 to 83 with a mean of 63 years. 104 (48.8%) patients were male, 10...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:10.1055/s-2008-1045901
更新日期:1992-10-01 00:00:00
abstract::Immune reactions against corneal transplants cause most of the graft failures during the first 24 months after keratoplasty. This is partly due to inadequate diagnosis and therapy. After a short discussion of the experimental and clinical background, different kinds of characteristic immune reactions are demonstrated ...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:
更新日期:1977-11-01 00:00:00
abstract:BACKGROUND:In order to obtain artifact-free electro-oculogram recordings the subject's cooperation is necessary. The aim of our study is to evaluate the recording characteristics of short-duration EOG and to compare the effect of mydriasis on electro-oculogram recordings in a cohort of controls. PATIENTS AND METHODS:E...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章,随机对照试验
doi:10.1055/s-0034-1396330
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND:The foveo-papillary angle (FPA) on fundus photographs is the accepted standard for the measurement of ocular cyclotorsion. We assessed the inter-rater reliability of this method in healthy subjects and in patients with trochlear nerve palsies. PATIENTS AND METHODS:In this methodological study, fundus photog...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:10.1055/s-0044-101013
更新日期:2018-04-01 00:00:00
abstract:BACKGROUND:The comparison of two or more quantitative measurement procedures applied to the same patient is often carried out by unsuitable statistical methods. An orientation for the choice of methods has been given for such problems. METHODS:Graphical methods, the concordance correlation coefficient and some regress...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:10.1055/s-2006-927278
更新日期:2007-01-01 00:00:00
abstract::Intact or denuded bovine corneas were incubated in the presence of 14lC GlcN and parts of the proteoglycan-glycoprotein complexes of the stroma were extracted by 0.15M NaCl and successively by 1.0M CaCl2. The specific activities of total GAG and KS were determined. In the presence of the epithelial layer the biosynthe...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:
更新日期:1977-12-01 00:00:00
abstract:BACKGROUND:Non-neovascular age-related macular degeneration (AMD) is not yet treatable. This article summarises current clinical research approaches. The reasons for the current lack of success are analysed. METHODS:Literature and databank search. RESULTS:The number of therapeutic approaches and mechanisms is limited...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:10.1055/a-0914-3183
更新日期:2019-09-01 00:00:00
abstract:BACKGROUND:The laser flare meter FM-500 (Kowa, diode laser, 670 nm) is a simplified version of the laser flare-cell meter FC-1000 (Kowa, He-Ne laser, 632.8 nm). the aim of this study was to compare flare measurements of the laser flare meter FC-500 with the established laser flare-cell meter FC-1000 and to determine th...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1055/s-2008-1035284
更新日期:1996-08-01 00:00:00
abstract::Within a period of 14 months 73 patients with idiopathic blepharospasm which could not be treated satisfactorily by any other form of therapy were treated by injections of botulin toxin. In 55 cases the follow-up period was sufficiently long to permit an evaluation. Thirty-five patients were temporarily completely fre...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:10.1055/s-2008-1050804
更新日期:1986-10-01 00:00:00
abstract::The number of retinal detachments in children is very low in comparison to the number in adults. One predisposing factor for development of paediatric retinal detachment is suffering from hereditary vitreoretinal degeneration (e.g., Stickler syndrome, Wagner syndrome, Kniest dysplasia, familial exudative vitreoretinop...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章,评审
doi:10.1055/s-0033-1350759
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:The mechanism for the control of choroidal perfusion is unclear. The present study was designed to investigate for the effect of standardized alteration of systemic perfusion parameters on choroidal hemodynamics in healthy volunteers. METHODS:Intraocular pressure (IOP; German abbreviation: IOD), Ocular Puls...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:10.1055/s-2008-1034980
更新日期:1998-10-01 00:00:00
abstract::A red or painful eye may be the clue to a systemic condition, many of which are of a rheumatological or immunological nature. Conjunctivitis may occur in Sjögren's Syndrome, Reiter's Syndrome (and other sero negative spondyloarthropathies) and with infections such as chlamydia and viruses. 70% of cases of episcleritis...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章,评审
doi:10.1055/s-2008-1045602
更新日期:1993-05-01 00:00:00
abstract::In a 49-year-old patient bilateral papilloedema with an empty sella turcica was observed. A summary of the literature references to this syndrome and its pathogenesis and its eye complications are given and discussed. ...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:
更新日期:1978-04-01 00:00:00
abstract:BACKGROUND:Additive manufacturing and 3D printing create new paths for the design and manufacturing of implants. Technologies with high resolution are required for the development of microstructured eye implants. In the present study, we demonstrate how these technologies can be used during the design development and m...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:10.1055/s-0041-107883
更新日期:2015-12-01 00:00:00
abstract:PURPOSE:To assess the safety and efficacy of treatment of macular edema secondary to central retinal vein occlusion (CRVO) with intravitreal bevacizumab. PATIENTS AND METHOD:The ongoing prospective study included 8 consecutive patients (8 eyes) with macular edema secondary to CRVO (6 non ischemic and 2 ischemic), trea...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 临床试验,杂志文章
doi:10.1055/s-2008-1027258
更新日期:2008-05-01 00:00:00
abstract::We present two further cases of choroiditis geographica. One of them we were able to follow up for two years. This allowed us to observe from the beginning the eye which was not at first involved. Weeks before the first lesions were visible, alterations of the EOG appeared. In the other case both eyes were already inv...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:
更新日期:1984-10-01 00:00:00
abstract:BACKGROUND:A high corneal astigmatism limits the attainable visual acuity and the ability of correction with spectacles or contact lenses. The astigmatism can also be an impairment for visual rehabilitation, especially after penetrating keratoplasty. A pseudohakic toric intraocular lens (T-IOL) can correct high corneal...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章,评审
doi:10.1055/s-0029-1246046
更新日期:2011-08-01 00:00:00
abstract::Corneal endothelial cell loss may result from endogenic causes, such as acute angle-closure glaucoma, or exogenic causes, such as corneal contusion, corneal perforation or surgery involving the anterior chamber. The extent of endothelial cell loss varies with the severity of trauma. Despite the different causes the re...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:10.1055/s-2008-1054698
更新日期:1983-01-01 00:00:00
abstract::27 children with severe brain injuries were examined by an ophthalmologist and had several paediatric examinations during an eight or ten weeks' course of rehabilitation. With highly reduced levels of consciousness they had hardly any cortical visual function but frequently had brainstem controlled reactions of eyelid...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:10.1055/s-2008-1045861
更新日期:1992-07-01 00:00:00
abstract::.25% Bupranolol in an oily solution decreases corneal sensitivity statistically significant from the 3. to the 15. minute after the application. The maximum of decrease is found between the 6. and the 15. minute in contrast to beta-blockers in aqueous solution (1.-3. minute). The topical subjective compatibility of 0....
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1055/s-2008-1045923
更新日期:1991-01-01 00:00:00
abstract::Neurofibromatosis 2 is an autosomal-dominant disease, which is characterized by vestibular schwannomas, cataract, retinal hamartomas as well as tumors of the peripheral and central nerve system, demonstrating a variety of expression. The ophthalmologist plays an important role in making the diagnosis, as several ocula...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章,评审
doi:10.1055/s-2005-857956
更新日期:2005-04-01 00:00:00
abstract:BACKGROUND:Tumor necrosis may reflect a destructive immune reaction. Systematic and statistically significant comparative clinico-histopathologic studies have not yet been reported. PATIENTS AND METHODS:113 necrotizing choroidal melanomas (NCM) recruited from 701 enucleated globes 1967-1988 were resectioned, stained a...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章
doi:10.1055/s-2008-1034986
更新日期:1998-11-01 00:00:00
abstract::The trend of lid reconstruction is to use less lid sharing operations. Free tarsoconjunctival or composite grafts in conjunction with covering skin muscle transplants have allowed suitable and cosmetically acceptable methods of full lid repairs. Our preferred surgical techniques are provided. Such methods of reconstru...
journal_title:Klinische Monatsblatter fur Augenheilkunde
pub_type: 杂志文章,评审
doi:10.1055/s-2008-1045933
更新日期:1991-02-01 00:00:00