Results 1 to 10 of about 833,654 (360)

Reconfigurable and responsive droplet-based compound micro-lenses

open access: yesNature Communications, 2017
Micro-scale optical components play a crucial role in imaging and display technology, biosensing, beam shaping, optical switching, wavefront-analysis, and device miniaturization.
S. Nagelberg   +10 more
semanticscholar   +1 more source

Effects of microwave irradiation on the parameters of hydrogel contact lenses

open access: yes, 2001
Ten brands of hydrogel contact lenses were selected from five of the six British Approved Name lens classification groups to test in vitro the effects of repeated heat disinfection by means of microwave irradiation.
Crabbe, A, Thompson, P
core  

Gradient index phononic crystals and metamaterials

open access: yesNanophotonics, 2019
Phononic crystals and acoustic metamaterials are periodic structures whose effective properties can be tailored at will to achieve extreme control on wave propagation.
Jin Yabin   +2 more
doaj   +1 more source

The effect of three different acrylic intraocular lenses on the glistening formation [PDF]

open access: yesVojnosanitetski Pregled
Background/Aim. One of the postoperative complications of phacoemulsification is the formation of fluid-filled microvacuoles inside the implanted intraocular lens (IOL). This condition is known as ‘glistening’.
Todorović Dušan   +6 more
doaj   +1 more source

Clinical trial of a patient-operated microwave care system for hydrogel contact lenses

open access: yes, 2001
The clinical effects of a patient-operated system of microwave disinfection for soft contact lenses were assessed in a prospective pilot trial involving 103 patients who were drawn from five optometric practices.
Crabbe, A, Thompson, P
core  

Don't sleep with lenses [PDF]

open access: yes
If used and maintained properly, contact lenses can be a safe, convenient alternative to glasses. But failure to remove and clean them regularly can result in serious health problems.

core   +2 more sources

Testing of a dual-mode microwave care regimen for hydrogel lenses

open access: yes, 2004
Purpose. To test the design of a patient care regimen for soft lenses that aims to provide the highest standards of disinfecting through use of domestic microwave cookers, while also providing storage equipment and solution that enable patients to follow
Crabbe, A, Thompson, P
core  

Demo 22-16 Real Image Formation

open access: yes, 2001
Two double convex lenses are used to focus light from an object onto an image screen. For a given distance between the source and the screen, the video demonstrates that there are two positions of the lens that will provide a focus of the object on the

core  

Periscopic Lenses [PDF]

open access: yesThe American Journal of the Medical Sciences, 1904
n ...
openaire   +1 more source

The Disinfecting Potential of Contact Lens Soutions used by Sultan Qaboos University Students

open access: yesSultan Qaboos University Medical Journal, 2011
Objectives: This study aimed to determine the disinfecting potential of some contact lens solutions used by some university students in Oman. Methods: This work was carried out from January to June 2010 in the Department of Microbiology & Immunology ...
B. C. Nzeako, Sara H Al-Sumri
doaj  

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