Results 61 to 70 of about 24,361 (241)

Structure and optics of the anterior segment of the cetacean eye : a thesis presented in fulfilment of the requirements for the degree of Master of Philosophy at Massey University [PDF]

, 1999
The anterior segment of the mammalian eye is concerned with the function and maintenance of its optical components, the most important of these being the maintenance of transparency and stable intraocular pressure.
Mellor, Lynda
core  

Differences in localization of P2X7 during epithelial wound healing in pre-type II diabetic models [PDF]

, 2017
Corneal injury, accompanied by improper wound repair, is the 4th highest cause of preventable blindness according to the World Health Organization.
Kneer, Krisandra
core  

Curvature-controlled defect dynamics in active systems

, 2017
We have studied the collective motion of polar active particles confined to ellipsoidal surfaces. The geometric constraints lead to the formation of vortices that encircle surface points of constant curvature (umbilics).
Dunlop, John W. C., Ehrig, Sebastian, Ferracci, Jonathan, Weinkamer, Richard   +3 more
core   +1 more source

The effect of polar lipids on tear film dynamics [PDF]

, 2009
In this paper we present a mathematical model describing the effect of polar lipids on the evolution of a precorneal tear film, with the aim of explaining the interesting experimentally observed phenomenon that the tear film continues to move upwards ...
A. Heryudono, A. Nagyova, C. J. W. Breward, C. J. W. Breward, E. A. MacDonald, E. Aydemir, E. K. Sakata, F. J. Holly, H. A. Stone, H. Ockendon, H. Wong, I. K. Gipson, J. M. Tiffany, J. P. McCulley, K. L. Maki, M. A. Lemp, M. B. Jones, M. B. Jones, P. E. King-Smith, R. E. Berger, R. J. Braun, R. J. Braun, R. Krechetnikov, R. S. Burdon, S. Mishima, T. C. Illingworth, T. C. Illingworth, T. P. Witelski, W. D. Mathers   +28 more
core   +1 more source

Corneal maps and anterior segment tomography of young mixed breed cats [PDF]

Ciência Rural
: This research described corneal maps and anterior-segment tomographic images of young mixed breed cats and compared them to those described in humans. The exams of 13 mixed-breed cats (25 eyes) aged between 18 and 48 months were analyzed. The following
Leticia de Andrade Ramos, Carlos Guillermo Arce, Cláudia Valéria Seullner Brandão, Inajara Nakamura Hirota, Mariana de Sessa, Renata Haddad Pinho, Carlos Roberto Padovani   +6 more
doaj   +1 more source

Effect of corneal light scatter on vision: a review of the literature [PDF]

, 2016
The cornea is the transparent connective tissue window at the front of the eye. The physiological role of the cornea is to conduct external light into the eye, focus it, together with the lens, onto the retina, and to provide rigidity to the entire ...
MARAONE, GIORGIA, SPADEA, LEOPOLDO, Tognetto, Daniele, VERBOSCHI, FRANCESCA, VINGOLO, Enzo Maria   +4 more
core   +3 more sources

Real-time analysis keratometer [PDF]

, 1987
A computer assisted keratometer in which a fiducial line pattern reticle illuminated by CW or pulsed laser light is projected on a corneal surface through lenses, a prismoidal beamsplitter quarterwave plate, and objective optics.
Adachi, Iwao P., Adachi, Yoshifumi, Frazer, Robert E.   +2 more
core   +1 more source

Myopes have significantly higher serum melatonin concentrations than non-myopes [PDF]

, 2017
Purpose Experimental animal models of myopia demonstrate that higher melatonin (Mel) and lower dopamine (DA) concentrations actively promote axial elongation.
Ackermann, Atkinson, Ayaki, Baba, Barnard, Beck-Friis, Benavente-Pérez, Benloucif, Berg, Bertolet, Besharse, Breslin, Brown, Cahill, Chang, Chiba, Chua, Delgado, Dong, Eisenberg, Fan, Freedman, Guo, Hammond, He, Hua, Huang, Huang, Hughes, Iuvone, Jee, Kivelä, Lanyon, Logan, Lu, Mallen, Mao, Martin, McCullough, Megaw, Megaw, Nickla, Nickla, Ohngemach, Panda, Pendrak, Rada, Rao, Riefahn, Rohrer, Rose, Rudnicka, Sankaridurg, Skene, Stone, Stone, Stormann, Tosini, Trier, Verkicharla, Wahl, Wallman, Wang, Weiss, Wiechmann, Wiechmann, Wilson, Witkovsky, Wu, Xu, Zhang   +70 more
core   +2 more sources

Bacterial synthesis of personalized biomimetic biological cornea

Bioactive Materials
Corneal transplantation is one of the most effective treatments for corneal blindness. However, aside from clinical donor shortage, matching the transparency, curvature, and mechanical properties of artificial corneal materials with autologous corneas is
Liyin Wang, Luhan Bao, Zhanying Wang, Bingqing Sun, Yanze Yu, Yong Ma, Jiayi Hu, Xuan Ding, Yongle Bao, Junhui Dai, Zhe Zhang, Wenguo Cui, Xingtao Zhou, Jing Zhao   +13 more
doaj   +1 more source

Study of factors influencing central corneal thickness among patients attending ophthalmology outpatient department at a tertiary care center in North Kerala

Kerala Journal of Ophthalmology, 2016
Context: Central corneal thickness (CCT) was assumed to be a constant when Goldmann designed his applanation tonometer. Knowledge of the CCT is of importance in the assessment of intraocular pressures (IOPs).
Vivek Oommen Varghese, Latha N Vadakkemadam, Shamin Jacob, K K Praveena, Ratheesh Raj, Jipina Kizhakkepatt   +5 more
doaj   +1 more source