Results 11 to 20 of about 6,183 (212)

Prevalence of Refractive Error Among School Children in Malawi. [PDF]

J Ophthalmol
Background Uncorrected refractive errors are a significant public health concern. Refractive error remains a common cause of vision impairment. Children are vulnerable to uncorrected refractive errors, which can impact their development, education, and social welfare.
Ogbonna G, Nyambalo P, Ogbonna R, Anyika F, Ezinne N, Mzumara T.   +5 more
europepmc   +2 more sources

Evaluation of Refractive Measurements Using a Handheld Autorefractor (Retinomax K+ Screen) Versus Streak Retinoscopy in Dogs. [PDF]

Vet Ophthalmol
ABSTRACT Objective To evaluate the accuracy and clinical applicability of the handheld autorefractor Retinomax K+ Screen in comparison to manual streak retinoscopy in non‐cyclopleged dogs. Methods Thirty‐four dogs (68 eyes) of 15 different breeds underwent comprehensive ophthalmic examination and refractive assessment using streak retinoscopy and ...
Giselbrecht J, Nell B.
europepmc   +2 more sources

A retinoscopic survey of 333 horses and ponies in the UK [PDF]

, 2014
Introduction: Ophthalmic examination in the horse is generally limited to crude assessment of vision and screening for ocular lesions. The refractive state of equine eyes and the potential impact on vision and performance requires further ...
Chung, Coile, Corboy, Davidson, Duval, Evans, Flitcroft, Gaiddon, Gordon, Graham, Grinninger, Harman, Howlett, Kinney, McClatchey, McMullen, Michau, Miller, Murphy, Murphy, Mutti, Norton, Ofri, Owens, Rose, Rosenfield, Rull-Cotrina, Saunders, Sekuler, Sivak, Smith, Svaldenienė, Timney, Weale, Wong, Wright, Young, Young, Zadnik   +38 more
core   +1 more source

Effect of Cycloplegia on Keratometric and Biometric Parameters in Keratoconus

Journal of Ophthalmology, 2016
Purpose. To obtain information about effect of cycloplegia on keratometry and biometry in keratoconus. Methods. 48 keratoconus (Group 1) and 52 healthy subjects (Group 2) were included in the study.
Nihat Polat, Abuzer Gunduz
doaj   +1 more source

Influence of fogging lenses and cycloplegia on open-field automatic refraction [PDF]

, 2008
Purpose: To compare refractive values measured without cycloplegia, cycloplegia and fogging lenses using an open-field auto-refractor. Methods: One hundred and forty-two young adults were enrolled from a university population; 96 were female (67.6 ...
Benjamin W. J., Bland J. M., Cervino A., Ciner E., Jorge J., Jorge J., Jorge J., McBrien N. A., Ward P. A.   +8 more
core   +1 more source

Comparison of Autorefraction and Photorefraction with and without Cycloplegia Using 1% Tropicamide in Preschool Children

Journal of Ophthalmology, 2019
Purpose. We aimed to investigate whether the accuracy of the Plusoptix A09 photorefractor in children with ametropia is enhanced by cycloplegia with 1% tropicamide. Methods. A total of 70 eyes (70 children) were retrospectively reviewed.
Ertuğrul Tan Yassa, Cihan Ünlü
doaj   +1 more source

Is post mydriatic test necessary in children having compound myopic astigmatism?

Journal of Clinical Ophthalmology and Research, 2015
Purpose: To study the need of post mydriatic test (PMT) in children with mild to moderate compound myopic astigmatism. Materials and Methods: The children having mild to moderate compound myopic astigmatism presenting to the pediatric ophthalmology ...
Mihir Kothari, Ali Hussain
doaj   +1 more source

The Effect of Topical Cyclopentolate on Anterior Segment Parameters in Patients with Keratoconus

Türk Oftalmoloji Dergisi, 2020
Objectives:To investigate the effect of cycloplegia on anterior segment structures in keratoconus and forme fruste keratoconus patients using corneal topography.Materials and Methods:In this study, 40 patients with keratoconus (group 1), 40 patients with
Ahmet Kırgız, Sevil Karaman Erdur, Semih Çakmak, Funda Dikkaya, Rukiye Aydın   +4 more
doaj   +1 more source

Role of microfluctuations in accommodation: a novel approach to reduce non-accommodative noise [PDF]

International Journal of Ophthalmology, 2019
Accommodative response and its possible role in myopia development has been explored through the study of the microfluctuations (MFs) of accommodation, which are commonly divided in high (1.0 to 2.3 Hz) and low (0.1 to 0.6 Hz) frequency components ...
Núria Lupón, Joan Gispets, Genis Cardona, Alba Tàpia, Hector Abril   +4 more
doaj   +1 more source

A Cross-sectional Observational Study to Assess the Influence of 1% Cyclopentolate and 1% Tropicamide on Intraocular Pressure in Children Undergoing Cycloplegic Refraction at a Tertiary Care Hospital in Southern India [PDF]

Journal of Clinical and Diagnostic Research, 2023
Introduction: Cycloplegic refraction is necessary in children due to their high amplitude of accommodation. A combination of Tropicamide and Cyclopentolate is commonly used as cycloplegics in children.
Bhagyajyothi B Khanagavi, Sneha Pakhake, Zeel Dineshbhai Prajapati, Shivanand C Bubanale, Smitha Prabhu, Chethana Warad, Pragya Porwal, Dhruv Goyal   +7 more
doaj   +1 more source