Publications by authors named "Ivanka van der Meulen"
Article Synopsis
- Presbyopia is a condition that makes it hard for older people to see things up close, often needing reading glasses as they age.
- Cataract surgery is very common and helps many people see better, and now there are special lenses that can fix presbyopia at the same time.
- These special lenses allow people to see things close up, far away, and in between without needing glasses after surgery.
The vasculature is characterized by a thin cell layer that comprises the inner wall of all blood vessels, the continuous endothelium. Endothelial cells can also be found in the eye's cornea. And even though cornea and vascular endothelial (VE) cells differ from each other in structure, they both function as barriers and express similar junctional proteins such as the adherens junction VE-cadherin and tight-junction member claudin-5.
View Article and Find Full Text PDFPurpose: The goal of this study was to investigate diurnal changes in intraocular straylight in relation to other corneal parameters and subjective complaints in patients with Fuchs endothelial dystrophy and healthy controls.
Methods: This is a prospective study conducted in 2 tertiary care hospitals in Germany and the Netherlands. Patients with Fuchs endothelial dystrophy (n = 71) and healthy controls (n = 34) were included.
Unlabelled: Disturbing binocular problems can be too complex to be treated in such a way that comfortable binocular single vision is restored. The grey filter contact lens could offer a safe and clinically useful way to help these patients.
Background: In unilateral acquired reduced visual performance or intractable diplopia the binocular performance often is less than the performance of the better eye, possibly leading to complaints of binocular visual functioning.
In this case series, we report the use of the black Artisan iris-claw intraocular lens (IOL) (Ophtec, The Netherlands) in 6 patients with various visually debilitating symptoms requesting occlusion of one eye. Between 2016 and 2019, 6 (5 female, 1 male) patients underwent implantation of the custom-made black Artisan iris-claw IOL after other management strategies had failed to relieve their symptoms. The black Artisan IOL is an opaque anterior chamber IOL that is fixated to the iris by enclavation.
View Article and Find Full Text PDFBackground And Aims: Polyhexamethyl biguanide (PHMB), a widely used topical treatment for keratitis (AK), is unlicensed with no formal safety assessment. This study evaluated its safety and tolerability.
Methods: A prospective, randomised, double-masked controlled trial in 90 healthy volunteers.
Purpose: To evaluate the accuracy of different intraocular lens (IOL) power calculation formulas available on the American Society of Cataract and Refractive Surgery calculator in calculating multifocal IOL power in eyes with previous hyperopic corneal refractive laser surgery.
Design: Retrospective case series.
Setting: Amsterdam University Medical Center, University of Amsterdam, and Retina Total Eye Care, Driebergen, the Netherlands.
Purpose: To compare the accuracy of different intraocular lens (IOL) calculation formulas available on the American Society of Cataract and Refractive Surgery (ASCRS) post-refractive surgery IOL power calculator for the prediction of multifocal IOL power after previous corneal refractive laser surgery for myopia.
Methods: An analysis and comparison were performed of the accuracy of three methods using surgically induced change in refraction (ie, Masket, Modified Masket, and Barrett True-K formulas) and three methods using no previous data (ie, Shammas, Haigis-L, and Barrett True-K No History formulas). The average of all formulas was also analyzed and compared.
Purpose: To study straylight before and after posterior polar cataract removal.
Setting: Academic Medical Center, Amsterdam, the Netherlands.
Design: Prospective case series.
Purpose: To describe the outcomes in terms of the refraction and visual acuity of multifocal intraocular lens (IOL) implantation in patients with previous hyperopic corneal refractive laser surgery.
Setting: Academic Medical Center, University of Amsterdam, Amsterdam, and Retina Total Eye Care, Driebergen, the Netherlands.
Design: Retrospective case series.
Purpose: To describe the refraction and visual acuity outcomes of multifocal intraocular lens (IOL) implantation in patients with previous corneal refractive laser surgery for myopia.
Setting: Academic Medical Center, University of Amsterdam, Amsterdam, and Retina Total Eye Care, Driebergen, the Netherlands.
Design: Retrospective cohort study.
Purpose: To report the results of long-term topical treatment with bevacizumab (Avastin) 5 mg/mL eyedrops in a case of aniridia-related neovacularization of the cornea.
Methods: Interventional case report. A female patient with aniridia had a decrease in the best corrected visual acuity from 0.
Objectives: To study the effects of corneal scars and the treatment of these scars with rigid gas-permeable (RGP) contact lenses on quality of vision including straylight. Visual effects were related to scar characteristics such as size and grade.
Methods: Straylight and best-corrected visual acuity were measured in 23 patients with corneal scars during and after RGP contact lens wear.
Purpose: To report on the beneficial results of an intense regimen of 0.05% cyclosporine eye drops, eight times a day in patients with therapy resistant vernal shield ulcers.
Methods: Case cohort of four eyes of three male children with vernal keratoconjunctivitis complicated by shield ulcers, who were treated with frequent cyclosporine 0.
Purpose: To evaluate and compare the efficacy of a lipid-based lubricant eyedrop formulation (hydroxypropyl guar/propylene glycol/phospholipid [HPG/PG/PL]) with preservative-free saline for the treatment of dry eye.
Methods: This was a prospective, multicenter, randomized, single-masked, parallel-group phase 4 clinical study. Patients ≥18 years diagnosed with dry eye received 1 drop of saline 4 times daily (QID) for 15 days during a run-in phase, followed by randomization.
Purpose: (1) To qualify complaints of quality of vision in patients with (severe) keratoconjunctivitis sicca by examining straylight values and (2) to check for an effect of scleral lens wear on straylight.
Methods: Straylight was measured in 16 patients with severe keratoconjunctivitis sicca using the Oculus C-Quant. In 9 of these patients, scleral lenses were used, and straylight was measured with and without scleral lenses.
Purpose: To evaluate differences in straylight between eyes implanted with a hydrophilic multifocal IOL (Seelens MF; Hanita Lenses, Hanita, Israel) and a hydrophobic multifocal IOL (SN6AD1; Alcon Laboratories, Inc., Fort Worth, TX).
Methods: In a prospective cohort study, routinely obtained straylight measurements (C-Quant; Oculus Optikgeräte, Wetzlar, Germany) 3 months after standard phacoemulsification for either cataract or refractive lens procedures were compared.
Purpose: To report the incidence of opacification of the intraocular lens (IOL) after Descemet stripping endothelial keratoplasty (DSEK) in an academic ophthalmology clinic.
Methods: In this retrospective case series, all patients who underwent DSEK between 2003 and 2013 were included. In 2008, the first patient presented with reduced vision as a result of opacification of the IOL in our clinic.
Purpose: To present two cases with complications after Nd:YAG laser treatment of epithelial ingrowth.
Methods: Case reports.
Results: Dense central recurrent epithelial ingrowth was treated with a Nd:YAG laser directed at the epithelial nests in the LASIK flap interface in one case.
Purpose: To evaluate whether the automated refraction (AR) correlates with subjective manifest (MR) refraction in eyes implanted with radially asymmetric multifocal intraocular lens (IOLs).
Methods: This retrospective study evaluated 52 eyes (52 patients) implanted with a radially asymmetric multifocal IOL (LS-312 MF30, Oculentis, Germany). At 3 months postoperatively, the AR and MR values were compared to determine the correlation between the sphere (S), the spherical equivalent (SE) and the astigmatic components J0 and J45.
Purpose: To report the outcomes of changes in straylight before and after phacoemulsification in eyes with preoperative corrected distance visual acuity (CDVA) better than 0.1 logMAR.
Setting: Private refractive surgery clinic, Driebergen, the Netherlands.
Purpose: To review the spectrum of disease, symptomatology, and management offered to patients referred for a second opinion after refractive surgery.
Methods: A prospective cohort study was done on all patients referred from October 1, 2006, to September 30, 2011, to a tertiary eye clinic after refractive surgery of any kind (ie, corneal laser surgery, conductive keratoplasty, radial keratotomy, phakic implants, refractive lens exchanges, or any combination thereof). Data analysis was performed on all demographic and clinical aspects of this cohort, including the initial complaint, type of referral, number of complaints, procedure previously performed, diagnosis at our center, type of advice given, and rate and type of surgical intervention.
We describe the case of an 83-year-old woman who had uneventful phacoemulsification with implantation of a tripod hydrophilic acrylic intraocular lens (IOL). Because of postoperative corneal decompensation, 2 Descemet-stripping endothelial keratoplasty (DSEK) procedures were performed within 2 years. After the second procedure, the graft was not well attached, requiring an intracameral injection of air on day 3.
View Article and Find Full Text PDFWe report a case of in-the-bag decentration and tilt of a hydrophilic rotationally asymmetric multifocal intraocular lens (IOL) of the M Plus type secondary to capsule contraction. After uneventful surgery and follow-up for 3 months, progressive decentering and tilting of the IOL secondary to capsule contraction and capsulorhexis phimosis was noticed. A surgical procedure was necessary to restore correct centration of the IOL.
View Article and Find Full Text PDF