نتایج جستجو برای: soft lens

تعداد نتایج: 175078  

Journal: :مجله دانشکده پزشکی دانشگاه علوم پزشکی تهران 0
احمد جوادیان a javadian

in view of the rapid expansion of contact lens amongst the users, new dimensions have been added to the domain of ophthalmology: giant papillay conjunctivitis, a disease caused by different kinds of contact lens, appears weeks or months after they are used, although some patients are struck years later. the predominant symptoms are increased awareness of lenses, ocular itching, blurred vision a...

جوادیان, احمد ,

In view of the rapid expansion of contact lens amongst the users, new dimensions have been added to the domain of ophthalmology: Giant papillay conjunctivitis, a disease caused by different kinds of contact lens, appears weeks or months after they are used, although some patients are struck years later. The predominant symptoms are increased awareness of lenses, ocular itching, blurred vision a...

Journal: :بینا 0
حمید نوروزی h norouzi تهران- خیابان شهید مدنی- بیمارستان امام حسین (ع) ژاله رجوی j rajavi تهران- خیابان شهید مدنی- بیمارستان امام حسین (ع) محمدعلی اخوت پور ma okhovatpour تهران- خیابان شهید مدنی- بیمارستان امام حسین (ع)

purpose: to evaluate corneal thickness changes after soft contact lens (scl) removal in lasik candidates. methods: fifty lasik candidates (100 eyes) with history of daily wear scl for at least 6 months were enrolled in this descriptive study. central corneal thickness was measured by ultrasonic pachymetry immediately after lens removal and then repeated daily at the same time, until the thickne...

Journal: :Contact lens & anterior eye : the journal of the British Contact Lens Association 2015
Miguel Romero-Jiménez Jacinto Santodomingo-Rubido Jose-Manuel González-Meijóme Patricia Flores-Rodriguez Cesar Villa-Collar

PURPOSE To evaluate how soft lens power affects rigid gas-permeable (RGP) lens power and visual acuity (VA) in piggyback fittings for keratoconus. METHODS Sixteen keratoconus subjects (30 eyes) were included in the study. Piggyback contact lens fittings combining Senofilcon-A soft lenses of -6.00, -3.00, +3.00 and +6.00 D with Rose K2 RGP contact lenses were performed. Corneal topography was ...

Journal: :Clinical and Experimental Optometry 1977

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: :Applied optics 2005
Tae Moon Jeong Manoj Menon Geunyoung Yoon

Lower- and higher-order wave-front aberrations of soft contact lenses were accurately measured with a Shack-Hartmann wave-front sensor. The soft contact lenses were placed in a wet cell filled with lens solution to prevent surface deformation and desiccation during measurements. Aberration measurements of conventional toric and multifocal soft contact lenses and a customized soft contact lens h...

2009
Jane Veys John Meyler Ian Davies

● Tear film assessment should be undertaken with minimal invasion of the structure – non-invasive techniques should be used whenever possible ● Assessment must be made both prior to and during contact lens wear. Tear film quality should be assessed both with the lens in situ and without the lens ● Use of the Tearscope in clinical practice allows a more detailed examination of the tears to be un...

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: :iranian journal of parasitology 0
hoda abedkhojasteh department of parasitology and mycology, school of public health, tehran university of medical sciences, tehran, iran. maryam niyyati department of medical parasitology and mycology, school of medicine, shahid beheshti university of medical sciences, tehran, iran. firoozeh rahimi farabi eye hospital, tehran university of medical sciences, tehran, iran. mansour heidari farabi eye hospital, tehran university of medical sciences, tehran, iran and department of medical genetics, tehran university of medical sciences, tehran, iran. shohreh farnia department of parasitology and mycology, school of public health, tehran university of medical sciences, tehran, iran. mostafa rezaeian department of parasitology and mycology, school of public health, tehran university of medical sciences, tehran, iran and center for research of endemic parasites of iran (crepi), tehran university of medical sciences, tehran, iran.

background: poor hygiene will provide good condition for corneal infections by opportunistic free-living amoebae (fla) in soft contact lens wearers. in the present study an amoebic keratitis due to hartmannella has been recognized in a 22-year-old girl with a history of improper soft contact lens use. she had unilateral keratitis on her left eye. her clinical signs were eye pain, redness, blurr...

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