Results 101 to 110 of about 38,555 (245)

Pseudophakic astigmatism reduction with femtosecond laser-assisted corneal arcuate incisions: a pilot study

open access: yes, 2017
Clayton Blehm,1 Richard Potvin2 1Gainesville Eye Associates, Gainesville, GA, 2Science in Vision, Akron, NY, USA Purpose: The aim of this study was to assess the effectiveness of the Verion-LenSx guided arcuate incision technique to reduce refractive ...
Blehm C, Potvin R
core  

Novel Postzygotic Variants Associated With Hypomelanosis of Ito Expand the ACTB‐Related Neurocutaneous Disease Spectrum

open access: yesClinical Genetics, EarlyView.
We describe a previously unreported phenotype related to postzygotic ACTB variants with hypomelanosis of Ito, characterized by hypopigmentation associated or not with neurodevelopmental features, distinct from Becker presentations, bridging constitutional neurodevelopmental and somatic cutaneous phenotypes.
Estella Castillon   +9 more
wiley   +1 more source

A novel color-LED corneal topographer to assess astigmatism in pseudophakic eyes

open access: yes, 2016
Tiago B Ferreira, Filomena J Ribeiro Department of Ophthalmology, Hospital da Luz, Lisbon, Portugal Purpose: To assess the accuracy of corneal astigmatism evaluation measured by four techniques, Orbscan IIz®, Lenstar LS900®, Cassini®, and ...
Ferreira TB, Ribeiro FJ
core  

Natural and Imposed Astigmatism and their Relation to Emmetropization in the Chick

open access: yes, 1997
This study investigated the ocular response of young chicks to astigmatic errors imposed by spectacle lenses and as a related issue, we examined the nature and prevalence of astigmatism in young chicks, and its relation to corneal development and natural
Wildsoet, Christine F.   +1 more
core   +1 more source

The Results of Phacoemulsification and Toric Intraocular Lens Implantation in Patients with High Astigmatism and Cataract

open access: yes, 2012
Pur po se: To report the results of phacoemulsification and toric intraocular lens (IOL) implantation in patients with cataract and high astigmatism. Ma te ri al and Met hod: Medical records of 21 eyes of 17 patients (6 men, 11 women) with 1,5 diopter (
Ahmet Akman   +7 more
core   +1 more source

The positive correlation between the progressive photoreceptor damage and the increased macular leakage indicating the severity of diabetic retinopathy

open access: yesJournal of Diabetes Investigation, EarlyView.
The dark area of photoreceptor cells, as measured by adaptive optics laser scanning ophthalmoscopy, shows significant enlargement with the progression of diabetic retinopathy (DR). A similar trend is observed for macular vascular leakage assessed by fundus fluorescein angiography. A positive correlation exists between these two parameters, suggesting a
Qi Fang   +9 more
wiley   +1 more source

Comparison of surgically induced astigmatism following different glaucoma operations

open access: yes, 2017
Masaki Tanito, Yukari Matsuzaki, Yoshifumi Ikeda, Etsuko Fujihara Division of Ophthalmology, Matsue Red Cross Hospital, Matsue, Japan Aim: To compare surgically induced astigmatism (SIA) among glaucomatous eyes treated with trabeculectomy (LEC), EX ...
Fujihara E   +3 more
core  

Barriers to Ophthalmologic Care Reported by Family Caregivers of Users and Non‐Users With Intellectual Disabilities

open access: yesJournal of Intellectual Disability Research, EarlyView.
ABSTRACT Background People with intellectual disabilities (IDs) are more likely to experience vision‐related impairments, yet they face many barriers to accessing eye care. Although previous studies have described these barriers, few have compared barriers reported by families who have and have not accessed ophthalmologic care, which may provide ...
Chiun‐Ho Hou   +3 more
wiley   +1 more source

The Incidence of Posterior Ocular Astigmatism in a Refractive Surgery Population as Determined by the Direct Reduction of Topography Measured Astigmatism

open access: yesClinical Ophthalmology
Manoj Motwani, Lourdes Haydaw Cornea Revolution/Motwani, LASIK Institute, San Diego, CA, 92121, USACorrespondence: Manoj Motwani, Cornea Revolution/Motwani, LASIK Institute, 9710 Scranton Road, Ste 170, San Diego, CA, 92121, USA, Tel +1 858 554-0008 ...
Motwani M, Haydaw L
doaj  

Dynamic accommodation response in the presence\ud of astigmatism

open access: yes, 2003
It has been suggested that in the presence of astigmatism some individuals make cyclic changes in focus over the astigmatic interval to obtain better visual performance.
Stark, Lawrence R.   +2 more
core  

Home - About - Disclaimer - Privacy