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  • refractive
  • Due to limited ray-tracing computational power and inadequate biological measurements at the time, these models simplified the optical system of human eyes by reducing the number of ocular surfaces, approximating ocular surfaces with spherical surfaces, or using a homogeneous refractive index for the crystalline lens. (spiedigitallibrary.org)
  • parameters
  • A biometry-based human eye model was developed by using the empirical anatomic and optical data of ocular parameters. (spiedigitallibrary.org)
  • However, for all IOL types average postoperative straylight remains above the expected base level, possible due to nonlenticular age-related parameters or to the physiological response of the ocular tissues to the surgical act. (arvojournals.org)
  • severe
  • Consider this: many eye conditions have very little or even no symptoms, while half of all cases of blindness or severe vision loss can be prevented through early detection. (simoneye.com)
  • treatments
  • The X2.5 Magnification telescope that is presented here is an additive treatment to all other medical treatments for AMD, it is sulcus fixated and designed for improving both distance and near vision. (escrs.org)
  • Screening exams can improve prognosis in terms of globe sparing and use of less intensive, ocular-salvage treatments in children with a positive family history of retinoblastoma. (uwhealth.org)
  • Mechanical
  • 1995). Ocular reaction to a retained foreign body depends on the size and composition of the foreign body, the tissue in which it lodges, and its mechanical irritation (Schmidt et al . (vin.com)
  • pain
  • A domestic shorthaired cat, four-month-old, male neutered, was referred to the 0phthalmology Service at the Veterinary Teaching Hospital of Murcia with a week history of ocular pain and swelling, anorexia and lethargy. (vin.com)
  • present
  • The one or more proteins, polypeptides, polyamino acids or polyamines present on the surface of the intraocular lens implant serves to reduce or eliminate residual lens epithelial cell migration within the lens capsule. (google.co.uk)
  • either
  • They last for the remainder of a patient's life and can now correct either far or near vision or a combination of both. (azooptics.com)