Search results for " Structures"
showing 10 items of 4162 documents
Retinal Imaging through Phakic Iris-Claw IOL.
2014
AbstractBackground: Phakic anterior chamber iris-fixated IOL (PIOL) are established for the correction of high myopia. These patients require attention to macular pathologies. This study was to evaluate the quality of imaging through the PIOLs. Methods: 54 eyes of 31 myopic and hyperopic patients with Verisyse®, Verisyse toric®, and Veriflex® phakic iris-fixated IOL were included. Mean preoperative refraction was −11.0 D and +5.7 D, respectively; mean follow-up time was 7.4 years (5–11 years). A matched control group was formed without PIOL implantation. OCT scans were performed and evaluated qualitatively and quantitatively. Results: In 52 eyes of 31 patients (96%), a 3D-OCT image and fund…
Female obesity impairs in vitro fertilization outcome without affecting embryo quality.
2008
Objective To compare embryo quality and reproductive outcome in our IVF program according to the women's body mass index (BMI). Design Retrospective study. Setting University-affiliated infertility clinic, between January 2001 and April 2007. Patient(s) Women undergoing a total of 6,500 IVF–intracytoplasmic sperm injection (ICSI) cycles. Intervention(s) Six thousand five hundred IVF-ICSI cycles were included and divided into four groups: lean ( 2 ; n=1,070; 16.5%); normal (20–24.9 kg/m 2 ; n=3,930; 60.5%); overweight (25–29.9 kg/m 2 ; n=1,081; 16.6%); and obese (≥30 kg/m 2 ; n=419; 6.4%). Main Outcome Measure(s) Comparison of embryo quality and reproductive outcome (implantation, pregnancy,…
Outcome of intracytoplasmic sperm injection with and without polar body diagnosis of oocytes.
2008
Objective To compare the reproductive outcome of women undergoing intracytoplasmic sperm injection (ICSI) with or without polar body diagnosis of oocytes. Design Nonrandomized retrospective study. Setting University-based human genetic institute in collaboration with a private fertility center. Patient(s) Six hundred seven women undergoing ICSI with polar body diagnosis and 591 women undergoing ICSI without polar body diagnosis at the same time in the same fertility center. Intervention(s) Polar body testing of ICSI oocytes by five-color fluorescence in situ hybridization. Main Outcome Measure(s) Pregnancy rate (positive fetal heartbeats) and live-birth rate (of at least one child). Result(…
Predicted and actual fetal weight throughout the last trimester.
1997
The aim of our study was to obtain, in normal pregnancies, references values of predicted and actual fetal weight for both male and female fetuses and for fetuses born to nulliparous and multiparous women between weeks 28 and 41 of gestation. Predicted fetal weight curves represented calculations of weight in the third trimester based on weight data obtained during the second trimester. These curves were obtained from 134 ultrasonograms obtained between weeks 20 and 27. Actual fetal weight curves represented the values calculated from third trimester measurements and were based on 374 ultrasonograms obtained between weeks 28 and 41. For predicted fetal weight minor differences were found be…
Inflammation after sclerocorneal versus clear corneal tunnel phacoemulsification.
2000
Abstract Objective To compare the postoperative inflammation after phacoemulsification followed by intraocular lens (IOL) implantation by means of sclerocorneal versus clear corneal tunnel incision. Design Randomized controlled clinical trial. Participants One hundred eyes of 100 patients were examined at a German University eye hospital. Intervention One hundred eyes with cataract necessitating phacoemulsification with posterior chamber IOL implantation were randomly assigned to receive a temporal sclerocorneal or clear corneal tunnel incision by a single surgeon. Main outcome measures Preoperative and postoperative inflammation was evaluated by measurement of flare using laser flare photo…
The relationship of ocular geometry with refractive error in normal and low birth weight adults
2020
Purpose Low birth weight (BW) individuals have an increased risk for myopic refractive error. However, it is unclear which ocular geometric alterations lead to an increase in myopic refractive error. This study aims to evaluate the impact of ocular biometry in interaction with BW on refractive error. Methods Participants of the prospective, observational, population-based Gutenberg Health Study (GHS) with self-reported BW aged 40–80 years and objective refraction and optical biometry were included. Linear regression analyses were conducted to evaluate associations between spherical equivalent with corneal power, anterior chamber depth, lens thickness and axial length and its interaction wit…
Photodynamic therapy with verteporfin for juxtafoveal choroidal neovascularization in pathologic myopia: a long-term follow-up study.
2007
Purpose To assess the effect of verteporfin photodynamic therapy (PDT) in juxtafoveal choroidal neovascularization (CNV) secondary to pathologic myopia (PM). Design Prospective, open-label, consecutive, interventional case series. Methods We prospectively followed a series of 48 consecutive patients (49 eyes) with pathologic myopia (≥ 6 diopters) who received verteporfin PDT for juxtafoveal CNV. This population was divided into two groups based on age (group A ≤ 55 years old, group B >55 years old), in three subgroups based on CNV lesion size, and in three categories based on refractive error at baseline. Results The median follow-up was 32 months (range, 12 to 56 months). Visual acuity (VA…
Clinical outcomes after implantation of a posterior chamber collagen copolymer phakic intraocular lens with a central hole for myopic correction.
2013
Purpose To evaluate the efficacy, predictability, safety, and stability of a new-model posterior chamber Implantable Collamer Lens phakic intraocular lens (pIOL) (V4c Visian) to correct myopia. Setting Private practice, Oviedo, Spain. Design Case series. Methods This study enrolled patients who had implantation of a new pIOL design with a central hole for more natural aqueous flow, eliminating the need for neodymium:YAG iridotomy or peripheral iridectomy. The uncorrected (UDVA) and corrected (CDVA) distance visual acuities, refractive error, intraocular pressure (IOP), endothelial cell count, central vault, and adverse events were evaluated 6 months postoperatively. Results The study enroll…
Association of low birth weight with myopic refractive error and lower visual acuity in adulthood: results from the population-based Gutenberg Health…
2017
PurposeLow birth weight (BW) is linked to impaired organ development in childhood, including altered ocular morphological and functional development. The aim of this study was to evaluate whether low BW has long-term effects on visual acuity and refraction in adulthood.MethodsThe Gutenberg Health Study is a population-based, observational cohort study in Germany, including 15 010 participants aged between 35 and 74 years. These participants were divided into three different BW groups (low: <2500 g; normal: between 2500 and 4000 g; and high: >4000 g). Best-corrected visual acuity and objective refraction were examined. We used multivariable linear regression models with adjustment for …
Prevalence of myopic maculopathy in the German population: results from the Gutenberg health study.
2019
AimsTo determine the prevalence of myopic maculopathy in the general population in Germany and to analyse potential associations with ocular and systemic factors.DesignThe Gutenberg Health Study is a population-based study, including 15 010 participants aged 35–74 years.MethodsMyopic maculopathy was graded in phakic eyes with spherical equivalent ≤−6 D by assessing fundus photographs according to a recent international photographic classification system (META-PM). 801 eyes of 519 participants (mean age 51.0±0.77 years) met the conditions and had gradable fundus photographs. Age-specific prevalence estimates were computed. Multivariable logistic regression analysis was used to assess associa…