Axis-free correction of astigmatism using bifocal soft contact lenses
نویسندگان
چکیده
منابع مشابه
Correction of astigmatism with contact lenses.
Contact lens correction of astigmatism is reviewed. According to literature data, rigid gas permeable lenses are the lenses of choice in correction of irregular and high astigmatism. The crucial advantage of rigid gas permeable lenses is clear vision and stable correction of astigmatism. Soft toric lenses ensure quick adaptation and comfort. The most prominent disadvantage of soft toric contact...
متن کاملBifocal soft contact lenses as a possible myopia control treatment: a case report involving identical twins.
BACKGROUND Several studies have suggested that bifocal and progressive spectacles can reduce progression of myopia in esophoric children. This study compared myopic progression with bifocal (BSCL) and single vision soft contact lenses (SVSCL) in identical twins with near point esophoria. METHODS Two 12-year-old myopic girls were randomly assigned to wear either BSCL or SVSCL for one year usin...
متن کاملMyopia Control with Bifocal Contact Lenses: A Randomized Clinical Trial.
PURPOSE Most studies have reported only minimal reductions in myopia progression with bifocal or progressive multifocal spectacles, although somewhat larger, although mostly still clinically insignificant, effects have been reported in children with nearpoint esophoria and/or accommodative dysfunctions. The CONTROL study was a 1-year, prospective, randomized, clinical trial of bifocal contact l...
متن کاملPredicting and assessing visual performance with multizone bifocal contact lenses.
PURPOSE To investigate how bifocal contact lenses, when combined with the aberrations of the eye, will affect visual performance. Also, to investigate the relationship between the patient's predicted and actual visual benefit with bifocal contact lenses. METHODS The monochromatic aberrations of 16 subjects were measured and used to simulate visual quality with three bifocal contact lens desig...
متن کاملBifocal trial lenses.
IT is sometimes convenient to demonstrate to a patient, who has not worn them before, the usefulness of bifocal glasses. There is in existence a foreign trial frame in which the ordinary trial lens can be clipped in from below so that the upper part occupies the same position as the reading segment of a bifocal. This appears to be a clumsy arrangement since the lower portion of the lens may not...
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ژورنال
عنوان ژورنال: Contact Lens and Anterior Eye
سال: 2017
ISSN: 1367-0484
DOI: 10.1016/j.clae.2017.09.002