Loading...
  • METHODS
  • Purpose: To compare effective phacoemulsification time in cataract surgery performed by manual phacoemulsification vs femtosecond laser-assisted lens fragmentation.Design: Retrospective, consecutive, nonrandomized, comparative case series.Methods: The setting was the Department of Ophthalmology, Goethe-University, Frankfurt, Germany. (linkoph.com)
  • Of all the techniques being used to correct presbyopia, at the Institut de la Màcula we recommend replacing the transparent crystalline lens with a multifocal lens implant (bifocal/trifocal) or a monofocal lens with monovision, or advanced monovision, as these are the safest, most stable, effective and definitive methods available today. (institutmacula.com)
  • visual acuity
  • With cataracts, the normally clear lens becomes cloudy, affecting the transmission of light through the lens and resulting in loss of visual acuity. (google.com.au)
  • Visual simulation using low and high contrast corrected distance visual acuity (CDVA) testing was carried out with the VAO instrument (Voptica, SL, Murcia, Spain), considering three optical conditions of the lens: removing HOA (no lens-HOA), removing spherical aberration (no lens-SA), and with lens HOA (natural condition). (healio.com)
  • capsule of t
  • One embodiment of the invention is an ocular drug delivery method by penetrating at least the outer capsule of the lens with a fine conduit that creates a self-sealing aperture when it is removed, then introducing a drug into the lens through this aperture. (google.com.au)
  • visualization
  • Early anatomists viewed the lens as the location of meaningful visualization. (utah.edu)
  • We used a new SS-OCT laboratory prototype designed to enhance the visualization of the crystalline lens and imaged the entire anterior segment of both eyes in two groups of participants: patients scheduled to undergo cataract surgery, n = 17, age range 36 to 91 years old, and volunteers without visual complains, n = 14, age range 20 to 81 years old. (arvojournals.org)
  • fibers
  • As the secondary lens fibers elongate from the equator, they form Y-shaped sutures by meeting anteriorly and posteriorly during fetal growth. (utah.edu)
  • The lens is held in place by zonular fibers, otherwise known as the zonules of Zinn (Fig. 4). (utah.edu)
  • It contains lens fibers and amorphous, intercellular substance. (harvard.edu)
  • iris
  • Finally the lens is pinched off and settles in place with the developing iris and ciliary body in the front of the eyeball (3). (utah.edu)
  • The amount of light entering the eye is controlled by the iris, which sits in front of the lens. (advancedvisioncare.co.uk)
  • extraction
  • Although many projects are being developed to treat presbyopia, the only definitive treatment currently available for its correction is extraction of the crystalline lens which is, due to the age-related loss of accommodation, the cause of the appearance of presbyopia. (institutmacula.com)
  • cataract formation
  • 13 . A method that minimizes cataract formation when an agent is provided to an ocular lens, the method comprising piercing the lens with a needle of 30 gauge or thinner, introducing an agent into the lens through the needle, and withdrawing the needle from the lens. (google.com.au)
  • Cataracts are most frequently associated with the normal aging process or pathology, but injury or mechanical violation of the ocular capsule surrounding the lens also causes cataract formation. (google.com.au)
  • Because of the risk of inducing cataract formation, penetrating the lens capsule to introduce drugs or other agents into the lens has not been favorably considered. (google.com.au)
  • A firm understanding of the embryology and development of the lens will provide great insight into the pathology associated with cataract formation. (utah.edu)
  • axial
  • Myopia onset is characterized by an abrupt loss of compensatory changes in the crystalline lens that continue in emmetropes throughout childhood axial elongation. (ovid.com)
  • We investigated the correlation between the tilt magnitude of lens or IOL and the axial length. (arvojournals.org)
  • The current study revealed that the tilt magnitude of the lens or IOL negatively correlated with axial length. (arvojournals.org)
  • tilt
  • Using a full-length OCT-based biometer, we could measure the tilt magnitude and orientation in both lens and IOL. (arvojournals.org)
  • Since the tilt-magnitudes before and after IOL implantation showed significant correlation, characteristics of the lens before surgery could be maintained after IOL implantation. (arvojournals.org)
  • The position of the lens center and the tilt angle of the lens were calculated by fitting the contour to a 10th-order even Fourier series containing tilt and decentration terms in a polar coordinate system using MATLAB's curve fitting toolbox. (arvojournals.org)
  • HOAs
  • Although the increment of pupil size increases the probability of patients with significant visual impact of lens HOAs, the mean intersubject VA differences are negligible. (healio.com)