Results 21 to 30 of about 38,101 (289)

Thermal structure of a gas-permeable lava dome and timescale separation in its response to perturbation [PDF]

, 2009
The thermal boundary layer at the surface of a volcanic lava dome is investigated through a continuum model of the thermodynamic advection diffusion processes resulting from magmatic gas flow through the dome matrix.
Adrian J. Matthews, Balmforth, Balmforth, Barclay, Barclay, Bourgouin, Calder, Carn, Costa, Couch, Dragoni, Dzurisin, Edmonds, Edmonds, Edmonds, Elsworth, Fink, Francis, Hale, Hale, Hammouya, Herd, Hicks, Hinch, Iverson, Mark J. Cooker, Mastin, Matthews, Matthews, McNutt, McNutt, Melnik, Melnik, Nakada, Neri, Neuberg, Oppenheimer, Peter D. Hicks, Sato, Sigurdsson, Simmons, Sparks, Sparks, Spera, Taron, Urai, Vaughan, Watts, Woods, Yamasato   +49 more
core   +1 more source

Contact lens rehabilitation following repaired corneal perforations

BMC Ophthalmology, 2006
Background Visual outcome following repair of post-traumatic corneal perforation may not be optimal due to presence of irregular keratometric astigmatism.
Sreenivas V, Sharma Namrata, Sinha Rajesh, Titiyal Jeewan S, Vajpayee Rasik B   +4 more
doaj   +1 more source

Rigid Gas-Permeable Semi-Scleral Contact Lenses after Radial Keratotomy: Apical Space, Lens Diameter, Limbal Clearance, Peripheral O-Rings, and Tear Exchange as Contact-Lens-Fitting Success Factors

Optics, 2022
The purpose of this case report is to verify if the adaptation of a rigid gas-permeable contact lens can improve VA and comfort in a patient with complications derived from radial keratotomy (RK) surgery.
Raúl Capote-Puente, Alfredo López-Muñoz, María-José Bautista-Llamas, Carmen Silva-Viguera, Marta Romero-Luna, José-María Sánchez-González   +5 more
doaj   +1 more source

Static and dynamic visual perception training combined with RGPCL for nystagmus complicated with ametropia: one case report [PDF]

Xin yixue, 2023
To evaluate the efficacy of static and dynamic visual perception training combined with rigid gas permeable contact lens （RGPCL） in the treatment of one case of nystagmus complicated with ametropia，aiming to provide guidance for clinical treatment ...
Yang Xiyang, Xu Li, Zeng Jin
doaj   +1 more source

The Effect of Contact Lens Usage on Corneal Biomechanical Parameters in Keratoconus Patients

Türk Oftalmoloji Dergisi, 2012
Pur po se: To determine and compare the corneal biomechanical properties in keratoconus patients using rigid gas permeable contact lenses and keratoconus patients who do not use contact lenses. Ma te ri al and Met hod: The study consisted of 70 healthy
Ali Bülent Çankaya, Alpaslan Anayol, Dilek İleri, Pelin Yılmazbaş, Faruk Öztürk   +4 more
doaj   +1 more source

Hybrid contact lenses for the correction of primary and induced ametropias

Российский офтальмологический журнал, 2020
The review presents the data on the use of hybrid contact lenses (HCL), a modern method of contact correction of ametropias of diverse origins. A HCL has a central rigid optical zone made of highly gas-permeable material and a flexible peripheral part ...
V. V. Neroev, A. V. Myagkov, O. V. Guryanova, A. T. Khandzhyan, A. I. Yakunina   +4 more
doaj   +1 more source

Clinical application of rigid gas permeable contact lens in 5 infants and toddlers after cataract surgery

陆军军医大学学报, 2023
Objective To investigate the safety, effectiveness and fitting method of rigid gas permeable (RGP) contact lens after cataract surgery in infants and toddlers.
ZHOU Chao, YAN Binxian, CHEN Li
doaj   +1 more source

Corneal topography for rigid gas permeable lens fitting in keratoconus: technique and preliminary results [PDF]

, 2002
Purpose: To introduce a practical method based on the topographic values for rigid gas-permeable contact lens (RGPCL) fitting in keratoconus patients. Methods: Thirty-three eyes of 17 consecutive patients with keratoconus were studied between July 1997 ...
Anbar, Roberto, Gomes, José Álvaro Pereira, Gomes, Roseli, Juliano, Yara, Lani, Luiz Alexandre, Pedro, Erik Alessandro   +5 more
core   +3 more sources

Nanofiller-tuned microporous polymer molecular sieves for energy and environmental processes [PDF]

, 2015
10.1039/c5ta09060aJournal of Materials Chemistry A41270 ...
Cao, S, Cheetham, AK, Pritchard, RH, Qiblawey, H, Sivaniah, E, Song, Q, Terentjev, EM   +6 more
core   +1 more source

Effects of rigid high gas-permeable contact lens wear on progression in patient with keratoconus

Medicine Science, 2022
Wearing Rigid High Gas-Permeable Contact Lens (RGPCL) is a primary method of vision rehabilitation in keratoconus eyes. The aim of the study is to investigate the effects of using RGPCL on the topographical variations at the keratoconus progress.
Tolga Yilmaz, Ahu Yilmaz, Feyza Altin, Ferah Ozcelik   +3 more
doaj   +1 more source