منابع مشابه
New design in anterior chamber lenses.
MoiE and more attention is being paid to the question of intra-ocular acrylic implants since Ridley's original venture into this field. More recently, interest has changed from Ridley's original idea of an acrylic lens replacing the extracted lens in position behind the pupil to the anterior chamber implant. It is possible that this has happened because of the greater ease of insertion of the a...
متن کاملTwo New Large Separation Gravitational Lenses from SDSS
We present discovery images, together with follow-up imaging and spectroscopy, of two large separation gravitational lenses found by our survey for wide arcs (the CASSOWARY). The survey exploits the multicolour photometry of the Sloan Digital Sky Survey to find multiple blue components around red galaxies. CASSOWARY 2 (or “the Cheshire Cat”) is composed of two massive early-type galaxies at z =...
متن کاملA new artificial material approach for flat THz frequency lenses.
Stacked layers of metal meshes embedded in a dielectric substrate are routinely used for providing spectral selection at THz frequencies. Recent work has shown that particular geometries allow the refractive index to be tuned to produce practical artificial materials. Here we show that by spatially grading in the plane of the mesh we can manufacture a Graded Index (GrIn) thin flat lens optimize...
متن کاملPredicting success with silicone-hydrogel contact lenses in new wearers.
PURPOSE to evaluate changes in tear metrics and ocular signs induced by six months of silicone-hydrogel contact lens wear and the difference in baseline characteristics between those who successfully continued in contact lens wear compared to those that did not. METHODS Non-invasive Keratograph, Tearscope and fluorescein tear break-up times (TBUTs), tear meniscus height, bulbar and limbal hyp...
متن کاملThe New Method of Extraction of Cataractous Lenses
sets up irritation and causes increased tension and degenerative changes, with the result that not only the eyesight is completely lost, but in a number of cases the patient suffers from excruciating pain on account of increased tension, septi infection, or iritis, etc. Although this operation had its day it was eventually discarded, with the advent of the European system of surgery. It pains o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Intellectual & Developmental Disability
سال: 2018
ISSN: 1366-8250,1469-9532
DOI: 10.3109/13668250.2018.1454276