Results 61 to 70 of about 675,436 (224)

Understanding the spacing of placodes in the eye: A comparative study across age and species

The Anatomical Record, EarlyView.
Abstract The conjunctival placodes of the avian eye form in an intriguing and conserved sequence in a circular annulus around the cornea. These 13–16 placodes develop into papillae that are essential for inducing underlying intramembranous flat bones, known as scleral ossicles, which form an important part of the ocular skeleton.
Florence Joseph, Tamara A. Franz‐Odendaal   +1 more
wiley   +1 more source

Quadrant Asymmetric Design Contact Lens for Visual Rehabilitation after Eye Trauma

Case Reports in Ophthalmology, 2021
The purpose of this case report is to demonstrate the efficacy of an asymmetric peripheral design scleral contact lens in a case of highly irregular corneal-scleral pattern due to trauma. A 63-year-old patient was involved in a jeep accident which caused
Nir Erdinest, Ortal Palatchi Sabag, Naomi London, Abraham Solomon   +3 more
doaj   +1 more source

Toric intraocular lenses for correction of astigmatism in keratoconus and after corneal surgery [PDF]

, 2016
Purpose: To describe the results of cataract extraction with toric intraocular lens (IOL) implantation in patients with preexisting astigmatism from three corneal conditions (keratoconus, postkeratoplasty, and postpterygium surgery).
Dooren, B.T.H. (Bart) van, Mol, I.E.M.A. (Ilse E. M. A.)   +1 more
core   +2 more sources

Microelectromechanical system‐based devices for the diagnosis, treatment, and monitoring of ophthalmic diseases

Interdisciplinary Medicine, EarlyView.
Due to the characteristics of miniaturization, high sensing performance, integration, and high comfort, MEMS‐based devices were employed to design sensors, imaging systems, drug delivery systems, retinal prosthesis, surgical tools, and wearable products for the ophthalmic disease diagnosis, treatment, and monitoring.
Yaling Peng, Xiaoming Huang, Xueyuan Zhang, Yiling Jiang, Xin Zhang, Xueying Zeng, Fengyuan Sun, Peng Liu, Jin Zhou, Zewei Luo, Tong Wu   +10 more
wiley   +1 more source

Effects of Scleral-lens Tear Clearance on Corneal Edema and Post-lens Tear Dynamics: A Pilot Study. [PDF]

, 2018
SignificanceThe present study with small-diameter scleral lenses (SLs) revealed that post-lens tear thickness (PoLTT) was significantly associated with post-lens tear mixing, but not with central corneal edema, after short-term SL wear.PurposeThe aim of ...
Lin, Kristina, Lin, Meng C, Michaud, Langis, Tan, Bo, Yuen, Tiffany L, Zhou, Yixiu   +5 more
core   +2 more sources

Fiber Bragg Grating Force Sensors for Minimally Invasive Surgery: State of the Art, Challenges, and Opportunities

SmartBot, EarlyView.
This article reviews the application of fiber Bragg grating (FBG) technology for precise force sensing in minimally invasive surgery. It outlines the fundamental working principles and algorithms used to interpret sensor data. The text surveys clinical applications across various medical fields, such as ophthalmology and vascular intervention (Table of
Shiyuan Dong, Tianqi Huang, Lingyu Chen, Shucong Yin, Qing Chang, Dingpei Han, Yangxi Li, Boyu Zhang, Hongen Liao, Fang Chen   +9 more
wiley   +1 more source

Changes in the Thickness of the Sublens Water Layer in Patients Using Scleral Lenses

Oftalʹmologiâ
Purpose of the study. To analyze the change in the thickness of the sub­lens water layer depending on the time of wearing lenses in patients using scleral lenses using the SkyOptix Laboratory lenses as an example.Patients and methods.
O. I. Ryabenko, O. M. Selina, E. Yu. Kramarenko, O. O. Alyaeva   +3 more
doaj   +1 more source

Use of a Mini-Scleral Lens in Patients with Keratoconus

Türk Oftalmoloji Dergisi, 2020
Objectives:To assess the visual performance of a mini-scleral lens in patients with keratoconus and to evaluate its fit by optical coherence tomography (OCT).Materials and Methods:Twenty-nine eyes of 24 patients with keratoconus were fitted with a mini ...
Semra Akkaya Turhan, Deniz Özarslan Özcan, Ebru Toker   +2 more
doaj   +1 more source

Effects of scleral-lens oxygen transmissibility on corneal thickness: A pilot study. [PDF]

, 2019
PurposeTo investigate the effect of various oxygen transmissibilities (Dk/t) of scleral lenses and corneal thickness recovery time from overnight eye closure with patching on corneal edema during 5 h lens wear.MethodsScleral lenses (hofocon A, 15.6 mm ...
Kim, Young Hyun, Lin, Kristina, Lin, Meng C, Tan, Bo, Tse, Vivien, Zhou, Yixiu   +5 more
core  

Toward new engagement paradigms for intraocular lenses: Light-initiated bonding of capsular bag to lens materials [PDF]

, 2015
8 págs.; 5 figs.© 2015 The Association for Research in Vision and Ophthalmology, Inc. PURPOSE. Successful intraocular lens procedures, that is, implantation of accommodating intraocular lenses (A-IOL), require firm engagement of the IOL haptics to the ...
Alejandre, Nicolás, Dorronsoro, Carlos, Kochevar, I.E., Lamela, J., Marcos, Susana   +4 more
core   +1 more source