نتایج جستجو برای: soft contact lenses

تعداد نتایج: 295208  

Journal: :Arquivos brasileiros de oftalmologia 2013
Luciane Bugmann Moreira Ricardo Augustho Canto Bardal Leila Roberta Crisigiovanni

PURPOSE Evaluate contact lenses fitting after intracorneal ring implantation for keratoconus, its visual acuity and comfort. METHODS Retrospective study of patients undergoing contact lenses fitting, after intracorneal ring for keratoconus. The criterion for contact lens fitting was unsatisfactory visual acuity with spectacle correction as referred by the patients. All patients were intoleran...

Journal: :Acta clinica Croatica 2012
Ksenija Curuvija Opacić

Contact lens correction of astigmatism is reviewed. According to literature data, rigid gas permeable lenses are the lenses of choice in correction of irregular and high astigmatism. The crucial advantage of rigid gas permeable lenses is clear vision and stable correction of astigmatism. Soft toric lenses ensure quick adaptation and comfort. The most prominent disadvantage of soft toric contact...

2016
Somayeh Radaie-Moghadam Hassan Hashemi Ebrahim Jafarzadehpur Abbas Ali Yekta Mehdi Khabazkhoob

PURPOSE To determine the effect of using toric soft contact lenses on corneal biomechanical properties. METHODS We enrolled 33 healthy patients with mean age of 23.18 ± 4.06 and minimal cylinder power of 1 D (-1.98 ± 0.808 SD) and negative history of contact lens use; keratoconic patients were excluded from the study. Toric soft contact lenses (BIOFINITY, Comfilcon A, Coopervision, Southampto...

Journal: :Optometry and vision science : official publication of the American Academy of Optometry 2013
Jeffrey J Walline Katie L Greiner M Elizabeth McVey Lisa A Jones-Jordan

PURPOSE Previous studies on soft multifocal contact lens myopia control published in the peer-reviewed literature reported findings of noncommercial contact lenses worn for 1 year or less. This study sought to determine the progression of myopia and axial elongation of children fitted with commercially available distance center soft multifocal contact lenses for 2 years. METHODS Eight- to ele...

Journal: :British medical journal 1987
A Bashey W MacNee

Identity ofthe causative organism was confirmed by moderate growth ofan organism from the corneal scrapings on one solid medium, growth of the same organism in more than one liquid medium, or growth in one liquid medium that correlated with the Gram stain. *Soft contact lenses (all cosmetic daily and extended wear). tHard contact lenses (aphakia and keratoconus, daily wear). tTherapeutic contac...

Journal: :Acta Informatica Medica 2020

Journal: :British Journal of Ophthalmology 1988

Journal: :Journal of optometry 2015
Alex Muntz Lakshman N Subbaraman Luigina Sorbara Lyndon Jones

Tear exchange beneath a contact lens facilitates ongoing fluid replenishment between the ocular surface and the lens. This exchange is considerably lower during the wear of soft lenses compared with rigid lenses. As a result, the accumulation of tear film debris and metabolic by-products between the cornea and a soft contact lens increases, potentially leading to complications. Lens design inno...

Journal: :بینا 0
سعید عبدی s abdi rehabilitation faculty, shahid beheshti university of medical sciences, tehran, iranتهران- میدان امام حسین (ع)- خیابان دماوند- دانشکده علوم توانبخشی- بخش بینایی سنجی بهرام خسروی b khosravi rehabilitation faculty, shahid beheshti university of medical sciences, tehran, iranتهران- میدان امام حسین (ع)- خیابان دماوند- دانشکده علوم توانبخشی- بخش بینایی سنجی محمد پاکروان m pakravan shahid beheshti university of medical sciencesدانشگاه علوم پزشکی شهید بهشتی مهدی طباطبایی m tabatabaei shahid beheshti university of medical sciencesدانشگاه علوم پزشکی شهید بهشتی

purpose: to determine the effect of induced myopia and hyperopia using soft contact lenses on optic disc parameters measured by fourier domain optical coherence tomography (fd-oct) in emmetropic persons. methods: in a quasi-experimental self controlled study, 57 normal emmetropic participants 18-42 years of age were studied. each subject underwent a complete ophthalmic examinations including me...

Journal: :The British journal of ophthalmology 1994
K Tsubota I Toda H Fujishima M Yamada T Sugawara J Shimazaki

The purpose of this study was to determine the corneal epithelial alterations induced by various types of contact lenses. By employing the specular microscope, the corneal epithelia of 60 patients who had worn contact lenses for more than 1 year were re-examined along with 15 myopic controls. The morphological changes in aphakic patients who changed from extended wear soft to extended wear rigi...

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