Results 31 to 40 of about 2,741,284 (172)

Visual axis reopacification after Nd:YAG laser posterior capsulotomy

Indian Journal of Ophthalmology. Case Reports
Posterior capsular opacification (PCO) and anterior hyaloid face opacification are the two possible causes of visual axis opacification after cataract surgery, of which PCO is more common in adults.
Paraali Shah, Ajita Sasidharan, Mithun Thulasidas   +2 more
doaj   +1 more source

Systematic review of potential causes of intraocular lens opacification [PDF]

, 2019
Intraocular lens (IOL) opacification is an infrequent complication of cataract surgery. Surface analysis has demonstrated that the opacification of IOLs is related to calcium or phosphate precipitation on or within the lenses, but the associated ...
David P. Piñero, Sánchez-García, Alicia, Fernández, Joaquín, Piñero, David P., Manuel Rodríguez‐Vallejo, Piñero, David P, Rodríguez-Vallejo, Manuel, Alicia Sánchez‐García, Joaquín Fernández   +8 more
core   +1 more source

Analysis of postoperative visual and surgical outcome following surgery for absorbed cataract in pediatric age group and the intraoperative difficulties

Indian Journal of Ophthalmology, 2022
Purpose: To analyze the postoperative visual and surgical outcomes following surgery for pediatric-absorbed cataracts and intraoperative difficulties.
V Kavitha, Mallikarjun M Heralgi, Saba Aafreen   +2 more
doaj   +1 more source

Visual Quality Assessment of Posterior Capsule Opacification Using Optical Quality Analysis System (OQAS) [PDF]

, 2017
Objective. To evaluate intraocular scattering in eyes with posterior capsule opacification by means of an objective scatter index (OSI) obtained from double-pass images of optical quality assessment system (OQAS TM II) and to determine the indication for
Jing Wang, Hui Zhang
core   +1 more source

Novel Technique of Pneumatic Posterior Capsulorhexis for Treatment and Prevention of Posterior Capsular Opacification

Journal of Ophthalmology, 2019
Purpose. To evaluate a new technique of posterior capsulorhexis using air support to treat primary posterior capsular opacification (PCO) during cataract extraction surgery or to prevent postoperative PCO. Setting.
Ahmed M. Eid, Shaaban Abd-Elhamid Mehany Elwan, Ahmed M. Sabry, Hossam M. Moharram, Ashraf M. Bakhsh   +4 more
doaj   +1 more source

The effect of retaining intact posterior capsule in congenital cataract surgery in children aged 4–8 years

BMC Ophthalmology, 2021
Background The present study sought to observe the effect of retaining intact posterior capsule in congenital cataract surgery in children aged 4–8 years. Methods This is a retrospective case control study.
Jing Shang Zhang, Jin Da Wang, Mayinuer Yusufu, Kai Cao, Shan Shan Jin, Ying Xiong, Jing Li, Xiu Li Sun, Shu Ying Chen, Zhen Yu Liu, Jing Fu, Li Li, Qi Sheng You, Xiu Hua Wan   +13 more
doaj   +1 more source

Intraoperative management of axial posterior capsular opacities during cataract surgery in six dogs

Open Veterinary Journal, 2023
Background: Posterior capsular opacification (PCO) is a cause of decreased vision after canine cataract surgery. PCO can appear in the months following surgery but can also be present at the time of surgery.
Frederic Goulle
doaj   +1 more source

Off-vertical axis rotation of the visual field and nauseogenicity

, 2009
BACKGROUND: Off-vertical axis rotation (OVAR) causes motion sickness which increases with angle of tilt and is most provocative around 0.2 Hz. The aim was to determine the tilt angle and frequency characteristics for visual OVAR, which is also known to ...
Arun, S., Wotton-Hamrioui, K., Wortley, E., Golding, J.F., Gresty, M.A., Cousins, S.   +5 more
core   +1 more source

Mechanophore‐Based Multichannel Colorimetric Force Sensors: Ultrasound‐Driven Stress and Strain Quantification

Advanced Science, EarlyView.
ABSTRACT Mechanophores with mechanochromic properties have attracted significant attention as force‐responsive materials for structural sensing. However, their applications remain mainly limited to qualitative force visualization, as direct and quantitative extraction of mechanical parameters such as stress and strain from mechanochromic responses has ...
Seungo Baek, Jeong Hoon Rhee, Skylar K. Osler, Minsoo P. Kim, Shyuan Cheng, Leonardo P. Chamorro, Hyunhyub Ko, Maxwell J. Robb, Gun Kim   +8 more
wiley   +1 more source

Diagnostic Accuracy and Feasibility of Quantitative Flow Ratio at Low Frame Rate Angiography: The Prospective Multicentre Australian AVALON Study

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Quantitative Flow Ratio (QFR) is a well‐established, non‐hyperemic, angiographic, wire‐free predictor of ischemia when compared to Fractional Flow Reserve (FFR). However, its diagnostic accuracy at low frame rates (< 10 frames/second), commonly used in contemporary practice to minimize radiation exposure, has not been evaluated ...
Joseph M. O'Brien, Michael Zhang, Thomas J. Ford, Peter J. Psaltis, Jessica A. Marathe, Jayant Ravindran, Rajan Rehan, Vidushi Tripathi, Eleanor Redwood, Kelly Easey, Adam J. Brown, Derek P. Chew, Andy Yong, Dennis T. L. Wong   +13 more
wiley   +1 more source