• In those patients, extra care regarding anesthesia, intraocular pressure, and some other aspects of cataract surgery must be taken. (bvsalud.org)
  • Purpose: To evaluate the refractive and visual outcomes of eyes implanted with monofocal, optimized, aspheric, hydrophobic acrylic intraocular lenses (IOL) following cataract surgery. (bvsalud.org)
  • Cataract surgery, which is also called lens replacement surgery, is the removal of the natural lens (also called the "crystalline lens") of the human eye that has developed a cataract, an opaque or cloudy area. (wikipedia.org)
  • Over time, metabolic changes of the crystalline lens fibres lead to the development of a cataract, causing impairment or loss of vision. (wikipedia.org)
  • During cataract surgery, the cloudy natural lens is removed, either by emulsification in place or by cutting it out. (wikipedia.org)
  • A cataract is a cloudy area in the lens of the eye that causes visual impairment. (wikipedia.org)
  • 1 In the past, we attempted to suppress inflammation in patients with uveitis, but now the goal is to eliminate inflammation in order to optimize surgical results. (aao.org)
  • A THE WITNESS: The purpose of the procedure was the same as any of myopic Lasik procedure: to relieve the patient of the myopia, which made her dependent upon glasses or contact lenses, and in her case made her absolutely blind and helpless without an optical prosthesis. (herbertnevyaslasik.com)
  • It is the definitive treatment for vision impairment due to lens opacification. (wikipedia.org)
  • Prospective assessment of plate-haptic rotationally asymmetric multifocal toric intraocular lens with near addition of + 1.5 diopters. (medscape.com)
  • The lens is not in contact with the natural lens of the eye and floats in the posterior chamber without insult or abrasion to surrounding tissue. (drrozakis.com)
  • However, the use of phakic IOLs has generally been unsuccessful due to design related issues that cause insult to the natural lens resulting in such complications as cataracts or abrasion of surrounding tissue. (drrozakis.com)
  • Intraocular lenses (IOLs), first implanted by Ridley 2 in 1949, have become indispensable in the treatment of cataract or very high myopia. (touchophthalmology.com)
  • Only a limited number of IOLs are on the market that can claim such a stable result. (touchophthalmology.com)
  • Cataract surgery, which is also called lens replacement surgery, is the removal of the natural lens (also called the "crystalline lens") of the human eye that has developed a cataract, an opaque or cloudy area. (wikipedia.org)
  • During cataract surgery, the cloudy natural lens is removed, either by emulsification in place or by cutting it out. (wikipedia.org)
  • According to "Intraocular Lens Implantation" by Dr. Emanuel S. Rosen, et al. (drrozakis.com)
  • The embryonic lens is formed by layers of epithelial cells that elongate, form a crystalline structure and become optically clear. (drrozakis.com)
  • 1] Posterior capsular opacification is caused by a proliferation of lens epithelial cells, which causes fibrotic changes and wrinkling of the posterior capsule. (medscape.com)
  • 8] As the intraocular lens technology has improved, the rates of opacification have decreased greatly. (medscape.com)
  • It is the definitive treatment for vision impairment due to lens opacification. (wikipedia.org)
  • The lens further includes one or more annular surfaces that protrude from the anterior surface of the lens or surrounds the lens such that when placed in the eye, it makes contact with the iris. (drrozakis.com)
  • This excessive scarring anterior to the intraocular lens can compromise vision. (medscape.com)
  • By subtracting these anterior corneal aberrations from the total ocular aberrations, one can obtain an estimate of the aberrations caused by the internal structures of the eye (i.e. posterior corneal surface and lens). (touchophthalmology.com)
  • Influence of measurement differences of anterior chamber depth and axial length on lens thickness evaluation in cataract patients: a comparison of two tests. (medscape.com)
  • A foldable acrylic intraocular lens with a 6.0 mm optic was freed from its position by viscodissection and moved into the anterior chamber. (ascrs.org)
  • Any of these can trigger the formation of crystalline structures that occur within the lens itself. (drrozakis.com)
  • The newly formed crystalline structures scatter light and destroy the transparency of the lens. (drrozakis.com)
  • Over time, metabolic changes of the crystalline lens fibres lead to the development of a cataract, causing impairment or loss of vision. (wikipedia.org)
  • published by The C. V. Mosby Company, 1984, intraocular lens implant procedures are used primarily for the correction of cataracts, a disease that affects the clarity of the natural lens. (drrozakis.com)
  • In cataract treatment, the IOL replaces the natural lens. (drrozakis.com)
  • Myopia (nearsightedness), hyperopia (farsightedness), astigmatism and presbyopia (loss of near vision due to factors such as natural lens inflexibility) can all be treated with eyeglasses and contact lenses. (drrozakis.com)
  • Phakic lenses are ones which are used in combination with, rather than in place of, the natural lens in the eye. (drrozakis.com)
  • The eye's natural lens is usually replaced with an artificial intraocular lens (IOL). (wikipedia.org)
  • The eye's natural lens is usually replaced with an artificial intraocular lens (IOL) to restore focus within a useful range of distances. (wikipedia.org)
  • An 18th century oculist named Tadini proposed the idea of a lens implant and even attempted the development of one. (drrozakis.com)
  • Roughly 250 years after Tadini 1 proposed the use of a high-diopter lens implanted into the eye to remedy aphakia, his ideas have been realised imany variations. (touchophthalmology.com)
  • A postoperative examination after 1 month can be performed, but that is also optional. (medscape.com)
  • Cataracts form when clumps of proteins or yellow-brown pigment accumulate in the lens, which reduces transmission of light to the retina at the back of the eye. (wikipedia.org)
  • A case of dense pigment deposition of the posterior lens capsule. (medscape.com)
  • Blindness from cataracts occurs in between 10 and 40 children per 100,000 in the developing world, and between 1 and 4 children per 100,000 in the developed world. (wikipedia.org)
  • According to "Intraocular Lenses," authored by Dr. David J. Apple, published by Williams and Wilkins, 1989, evidence of the concept of intraocular lenses dates back at least two centuries. (drrozakis.com)
  • In addition to helping keep the eye open, the lens has a 10.0-mm helium-neon YAG-coated plano-convex 1.8× magnification button positioned at the center of the lens, which focuses the beam spot size on the posterior capsule. (medscape.com)
  • A clinical quality version of the material, polymethylmethacrylate (PMMA), more commonly known as Plexiglass, was fabricated by Rayners of London into the first synthetic intraocular lenses (IOL). (drrozakis.com)
  • Poor lens design suppressed the growth of IOL's until the design improved and the market grew rapidly in the 1980's. (drrozakis.com)