Non-cycloplegic spherical equivalent refraction in adults:comparison of the double-pass system, retinoscopy, subjective refraction and a table-mounted autorefractor [PDF]
International Journal of Ophthalmology, 2013 AIM:To evaluate the accuracy of spherical equivalent (SE) estimates of a double-pass system and to compare it with retinoscopy, subjective refraction and a table-mounted autorefractor.METHODS: Non-cycloplegic refraction was performed on 125 eyes of 65 ...
Meritxell Vilaseca +4 more
doaj +1 more source
Measurements of the Beam-Wave Fluctuations over a 142-km Atmospheric Path [PDF]
, 2006 An optical link has been established between the Canary Islands La Palma and Tenerife. A 1064-nm transmitting laser was located on La Palma whereas a BPSK communication receiver and measurement instruments were installed in ESA's OGS on Tenerife.
Perlot, Nicolas +11 more
core +1 more source
Cost-based burst dropping strategy in optical burst switching networks [PDF]
, 2005 Optical burst switching (OBS) is a new paradigm for future all-optical networks. Intentional burst dropping is one of techniques used to achieve desired quality of service. In this paper we note that some bursts are more likely to cause contention.
Barry, Liam P. +5 more
core +2 more sources
Multiple extra macular branch retinal vein occlusions in hyperhomocysteinemia
Indian Journal of Ophthalmology, 2014 Hyperhomocysteinemia is a well-known modifiable risk factor for thromboembolism. Retinal vascular occlusion in patients having hyperhomocysteinemia is a known entity, particularly in young patients.
Abhijit Diwakar Gore +3 more
doaj +1 more source
Comparison of optical quality after implantable collamer lens implantation and wavefront-guided laser in situ keratomileusis [PDF]
International Journal of Ophthalmology, 2018 AIM: To compare the optical quality after implantation of implantable collamer lens (ICL) and wavefront-guided laser in situ keratomileusis (WG-LASIK). METHODS: The study included 40 eyes of 22 patients with myopia who accepted ICL implantation and 40 ...
Hong-Ting Liu +10 more
doaj +1 more source
Periorbital nodular fasciitis arising during pregnancy
Indian Journal of Ophthalmology, 2014 Nodular fasciitis (NF) is a benign proliferation of fibroblasts and myofibroblasts that rarely occurs in the periorbital region. We report what we believe to be the first case of periorbital NF associated with pregnancy. A case of intravascular fasciitis,
Brandon N Phillips, Andrew S Eiseman
doaj +1 more source
Wavelength-diversity transmission for fading mitigation in the atmospheric optical communication channel [PDF]
, 2006 Mitigation of index of refraction turbulence (IRT) effects is crucial in long-range atmospheric communication links. Diversity-transmission is one favorable way for fading compensation.
Perlot, Nicolas +7 more
core +1 more source
Multiple Wavelength Free-Space Laser Communications [PDF]
, 2003 Free-space optical communications systems in the atmosphere, based on intensity modulation and direct detection, are heavily affected by fading caused by turbulence cells of varying scale and motion.
Perlot, Nicolas +9 more
core +1 more source
Anterior chamber fixation of a posterior chamber intraocular lens: A novel technique
Indian Journal of Ophthalmology, 2014 We aimed to evaluate the implantation of a posterior chamber intraocular lens (IOL) in the anterior chamber (AC) with the haptics passing through two iridectomies to the posterior chamber.
A Sahap Kükner +5 more
doaj +1 more source
Micro-optical elements from optical-quality ZIF-62 hybrid glasses by hot-imprinting [PDF]
, 2023 Hybrid glasses derived from meltable metal-organic frameworks (MOFs) promise to combine the intriguing properties of MOFs with the universal processing ability of glasses. However, shaping of hybrid glasses in their liquid state has been elusive thus far.
Roman, Sajzew +9 more
core +2 more sources