purpose: in the present study we have tried to find the most reliable intraocular lens (iol) power calculation formula in patients with keratoconus (kcn) and cataract. methods: in a prospective case series between october 2010 and march 2012, eligible patients with cataract and kcn underwent phacoemulsification with iol implantation. preoperatively, based on iol master keratometric data iol pow...

PURPOSE To evaluate the possible benefits of biometry and ray-tracing intraocular lens (IOL) calculation for aspheric aberration-correcting IOLs. SETTING Private eye clinic in Germany. DESIGN Retrospective consecutive case series. METHODS Eyes with 3 different aberration-correcting IOLs were reviewed. Before surgery, the axial length, corneal thickness, anterior chamber depth, crystalline...

In Brassica self-incompatibility, the recognition of self/nonself pollen grains, is controlled by the S-locus, which encodes three highly polymorphic proteins: S-locus receptor kinase (SRK), S-locus protein 11 (SP11; also designated S-locus Cys-rich protein), and S-locus glycoprotein (SLG). SP11, located in the pollen coat, determines pollen S-haplotype specificity, whereas SRK, located on the ...

PURPOSE To evaluate the accuracy of different formulas used for IOL power calculation in patients with high axial myopia undergoing cataract surgery. METHODS A prospective clinical study was carried out on 53 eyes of 51 patients with an axial length from 25.5 to 31.4 mm including 21 males (41.2%) and 30 females (58.8%). Calculation of the IOL power to be implanted was done by three available ...

PURPOSE To compare the accuracy of four different intraocular lens (IOL) power calculation formulas for eyes with mean keratometry values greater than 46 diopters (D). METHODS Forty five eyes from 45 patients who were candidates for senile cataract surgery with mean keratometry values greater than 46 D were included. Calculation of the IOL power was performed by the Lenstar. The implanted IOL...

BACKGROUND To assess the constants and formula for aphakia correction with iris-claw IOLs to achieve the best refractive status in cases of late in-the-bag IOL complex dislocation. METHODS A literature search was performed. The following data were obtained: Iris-claw IOL model, Iridal or retroiridal enclavation, A-constant, ultrasound or optical biometry, formula employed and refractive outco...

Introduction. Previous cataract surgery studies assumed that first-eye predicted and observed postoperative refractions are equally important for predicting second-eye postoperative refraction. Methods. In a retrospective analysis of 173 patients having bilateral sequential phacoemulsification, multivariable linear regression was used to predict the second-eye postoperative refraction based on ...

To gain further insight into the mode of action of S-locus receptor kinase (SRK), a receptor-like kinase involved in the self-incompatibility response in Brassica, different recombinant SRK proteins have been expressed in a membranous environment using the insect cell/baculovirus system. Recombinant SRK proteins exhibited properties close to those of the endogenous stigmatic SRK protein and wer...

SRK Consulting (UK) Limited (SRK) is an associate company of the international group holding company, SRK Consulting (Global). SRK provides a comprehensive range of consulting services to the resource industry. Consulting services are for mineral resource projects ranging from exploration, development and exploitation through to closure, and in the fields of geology, mining, infrastructure, bio...

Mục tiêu: Đánh giá hiệu quả của công thức SRK/T trong dự tính suất thể thủy tinh (TTT) nhân tạo. Đối tượng và phương pháp nghiên cứu: Nghiên cứu mô tả tiến thực hiện từ tháng 11/2022 - 3/2023 trên 162 mắt bệnh phẫu thuật Phaco đặt TTT tạo, tạo được bằng thứ SRK/T; tại Bệnh viện Mắt Nghệ An. đánh kết khúc xạ tồn dư thị lực các thời điểm sau mổ 1 tuần, 3 tháng. Kết quả: Khúc cầu tương đương trung...