Results 31 to 40 of about 269,486 (164)

Treatment of irregular astigmatism by topography-guided ablation [PDF]

Revista Brasileira de Oftalmologia
Topography-guided ablation was designed to improve corneal regularity throughout the correction of corneal high order aberrations. The present report described three cases with different indications for topography-guided ablation to correct irregular ...
Adriana Geremias Toni, Luiz Antônio de Brito Martins, Guilherme Novoa Colombo-Barboza, Luiz Roberto Colombo-Barboza, Bernardo Kaplan Moscovici, Marcello Novoa Colombo-Barboza   +5 more
doaj   +1 more source

Association between corneal topographic patterns and refractive status of the eye in Sohag city, Egypt [PDF]

Egyptian Journal of Clinical Ophthalmology
Aim: The aim of the current study was to evaluate corneal topographic pattern & its correlation with refractive status of the eye. Patients and Methods: a prospective observational single-center hospital-based cross- sectional case-control clinical ...
Mounir, A., Iqbal, M., Abd-Elal, A., Ezz Eldawla, M.   +3 more
doaj   +1 more source

Management of irregular astigmatism

, 2000
Using a liberal definition of corneal irregularity, modern videokeratoscopy may define approximately 40% of normal corneas with a toric refractive error as possessing primary irregular astigmatism.
Goggin, M., Alpins, N., Schmid, L.
core   +1 more source

Tomographic analysis in eyes with severe astigmatism following pterygium excision

Indian Journal of Ophthalmology. Case Reports
This case series highlights the impact of pterygium and its excision on both regular and irregular corneal astigmatism, emphasising the importance of preoperative corneal tomography.
Mona Bhargava, Debasmita Bera, Kalpita Datta   +2 more
doaj   +1 more source

Estimation of Intraocular Lens Power Calculation Formula in Irregular Astigmatism With Normal Axial Length Eyes

Function and Disability Journal, 2021
Background and Objectives: We evaluated the intraocular lens power calculation (IOL) formulas in eyes with cataracts and irregular astigmatism who have undergone cataract surgery.
Leila Mirzaei Saba, Mohammadali Hassani, Ebrahim Jafarzadehpour, Ali Mirzajani   +3 more
doaj  

Lesions impairing regular versus irregular past tense production [PDF]

, 2013
We investigated selective impairments in the production of regular and irregular past tense by examining language performance and lesion sites in a sample of twelve stroke patients.
Meteyard, L., Price, Cathy J., Aydelott, J, Meteyard, Lotte, Woollams, A.M., Price, CJ, Woollams, A M, Price, C.J., Woollams, Anna M., Woollams, AM, Price, C J, Aydelott, Jennifer, Meteyard, L   +12 more
core   +1 more source

Surgical approaches to correct corneal astigmatism at time of cataract surgery: a mini-review [PDF]

International Journal of Ophthalmology
Among refractive errors, astigmatism is the most common optical aberration, where refraction changes in different meridians of the eye. It causes blurred vision at any distance and includes corneal, lenticular, and retinal astigmatism.
Xiao-Lei Yin, Zhi-Yang Ji, Xiu-Xin Li, Xue-Mei Liang, Shu-Xing Ji   +4 more
doaj   +1 more source

3D‐Printed Corneal Substitutes: Materials, Fabrication, and Preclinical Progress

Advanced Materials Technologies, EarlyView.
Successful clinical translation of 3D‐printed corneal substitutes relies on the interplay between the bioink properties, cellular component, and the fabrication process. These factors influence the critical properties of the construct, including optical transparency, mechanical stability, suture retention, that ultimately govern long‐term stromal ...
Shadi Moshayedi, Ashley Vazquez, Alexander J. Choi, Dimitrios Karamichos, Jayoung Kim   +4 more
wiley   +1 more source

SuperResNET: Model‐Free Single‐Molecule Network Analysis Software Achieves Molecular Resolution of Nup96

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
SuperResNET is a powerful integrated software that reconstructs network architecture and molecular distribution of subcellular structures from single molecule localization microscopy datasets. SuperResNET segments the nuclear pore complex and corners, extracts size, shape, and network features of all segmented nuclear pores and uses modularity analysis
Yahongyang Lydia Li, Ismail M. Khater, Christian Hallgrimson, Ben Cardoen, Timothy H. Wong, Ghassan Hamarneh, Ivan R. Nabi   +6 more
wiley   +1 more source

Visual acuity measures do not reliably detect childhood refractive error--an epidemiological study. [PDF]

, 2012
PURPOSE: To investigate the utility of uncorrected visual acuity measures in screening for refractive error in white school children aged 6-7-years and 12-13-years.
Nicola S Logan, Saunders, Kathryn J., Rudnicka, AR, Saunders, KJ, O'Donoghue, Lisa, Alicja R Rudnicka, Rudnicka Alicja R., McClelland Julie F., Logan, Nicola S., Julie F McClelland, Lisa O'Donoghue, Saunders Kathryn J., Rudnicka, Alicja R., McClelland, Julie F., Logan, NS, McClelland, JF, O'Donoghue, L, O'Donoghue Lisa, Logan Nicola S., Kathryn J Saunders   +19 more
core   +2 more sources