نتایج جستجو برای: plastic lens
تعداد نتایج: 105212 فیلتر نتایج به سال:
A storage test on chlorhexidine gluconate (0.004%) in aqueous or simulated contact lens solutions, conducted for 6 months in various containers, suggested [l] that loss of activity by a surface adsorption process was occurring. It has been reported [2] that contact lens solutions containing chlorhexidine gluconate (0.~5%) stored at room temperature in the dark for 6 months in polypropylene, pol...
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...
Abstract The design of the cylindrical Luneburg lens manufactured by using 3D printing facilities was presented, fabricated and experimentally verified. two different approaches to parameter discretization were applied compared. effective dielectric permittivity Polylactic Acid (PLA) plastic samples with infilling percentage estimated a resonant method.
PURPOSE To demonstrate the feasibility of measuring the elasticity of intact crystalline lenses using atomic force microscopy (AFM). METHODS AFM elasticity measurements were performed on intact lenses from 18 fresh cynomolgus monkey cadaver eyes (4-10 years old, <1 day postmortem) that had been left attached to their zonule-ciliary body-sclera framework. The eyes were prepared by bonding a pl...
With the development of plastic surgery techniques, computer aided approach has become a significant method in medical plastic surgery. In order to solve effects on surgical results made by the surface of a wound in craniofacial cosmetic surgery, accurate preoperative preparation is usually required for the surgery. This paper summarizes the application of computer aided technology in craniofac...
In this research work, a multibeam antenna which is a combination of a beamformer network (BFN) and a linear array antenna, has been designed. A Rotman lens has been chosen as beamformer network and Vivaldi antennas have been selected for constructing array antenna. The Substrate Integrated Waveguide (SIW) was used for implementing Rotman lens. After explanation the structure of Substrate integ...
purpose: to evaluate visual function in patients with different types of light-filtering intraocular lenses (iols) methods: in this prospective comparative clinical study cataract patients with different types of iols in khatam-al-anbia eye hospital, mashhad were enrolled and followed for three months postoperatively. corrected distance visual acuity (cdva), color discrimination under photopic ...
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