Search results for "Bioptics"

showing 3 items of 3 documents

Comparison of visual and refractive results of Toric Implantable Collamer Lens with bioptics for myopic astigmatism.

2013

PURPOSE: To compare visual and refractive results of Toric Implantable Collamer Lens (TICL) and bioptics (ICL plus excimer corneal surgery) to treat myopic astigmatism. METHODS: Eighty-one eyes underwent TICL implantation and 83 eyes were treated with bioptics (corneal ablation was performed between 1.5 and 6 months after ICL implantation). Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), refraction, adverse events, safety, and efficacy were evaluated 12 months postoperatively. RESULTS: At 12 months postoperatively, the mean spherical equivalent was -0.15 ± 0.36 diopters (D) in the TICL group and -0.08 ± 0.26 D in the bioptics group (p = 0.099). Sixty-six …

AdultMalemedicine.medical_specialtyBiopticsOptics and PhotonicsPhakic Intraocular Lensesgenetic structuresmedicine.medical_treatmentImplantable Collamer Lens (ICL)Keratomileusis Laser In SituVisual AcuityKeratomileusisAstigmatismExcimerPhakic intraocular lensRefraction OcularPhotorefractive KeratectomyCellular and Molecular NeuroscienceYoung AdultOpticsBioptics (surgery)Lens Implantation IntraocularOphthalmologymedicineMyopiaHumansDioptreImplantable collamer lensScience & TechnologyExcimer laserbusiness.industryAstigmatismMiddle Agedmedicine.diseaseSensory SystemsPhotorefractive keratectomyeye diseasesOphthalmologyImplantable Collamer LensTreatment OutcomeFemalebusinessGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie
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Prevention of hyperopic surprise after LASIK in patients with refractive multifocal intraocular lenses.

2011

Purpose. Three cases of patients who developed a similar hyperopic defect in refraction following laser in situ keratomileusis (LASIK) after multifocal intraocular lens (IOL) implantation are described. Methods. Ophthalmologic evaluation including refractive status, corrected and uncorrected visual acuity (both at far and near), and corneal topography in patients presenting similar hyperopic refractive surprise in one eye as a result of LASIK refinement of residual ametropia after refractive multifocal IOL implantation. Results. Laser in situ keratomileusis enhancement for residual ametropia of −1.00 to −1.50 D in patients with a prior implantation of refractive multifocal IOL resulted in a…

Malemedicine.medical_specialtygenetic structuresmedicine.medical_treatmentKeratomileusis Laser In SituVisual AcuityKeratomileusisCataract ExtractionRefraction OcularBioptics (surgery)Lens Implantation IntraocularOphthalmologymedicineMyopiaHumansIn patientLenses Intraocularmedicine.diagnostic_testbusiness.industryLASIKCorneal TopographyGeneral MedicineMultifocal intraocular lensMiddle AgedCorneal topographySubjective refractionRefractioneye diseasesOphthalmologyHyperopiaFemalesense organsbusinessEuropean journal of ophthalmology
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Myopic astigmatism correction: comparison of a Toric Implantable Collamer Lens and a bioptics technique by an adaptive optics visual simulator.

2013

Purpose To compare the optical and visual quality of a simulated Toric Implantable Collamer Lens (TICL) and a bioptics technique to treat high myopic astigmatism. Methods An adaptive optics visual simulator was used to simulate the vision after TICL implantation and a bioptics procedure from the wavefront aberration pattern for moderate and high-myopic astigmatism. Visual acuity (VA) at different contrasts and contrast sensitivity (CS) at 10, 20 and 25 cycles degree−1 were measured for 3 and 5-mm pupils. Modulation Transfer Function (MTF) and Point Spread Function (PSF) were calculated for a 5-mm pupil. Results At a 3-mm pupil we only found statistically significant differences in VA betwee…

Point spread functionAdultMalePhakic Intraocular LensesVisual acuityCorneal Wavefront AberrationAdolescentVisual AcuityAstigmatismPupilContrast SensitivityYoung AdultBioptics (surgery)Lens Implantation IntraocularOptical transfer functionmedicineMyopiaHumansAdaptive opticsSimulationMathematicsAberrometryAstigmatismmedicine.diseaseSensory SystemsOphthalmologyFemaleSpatial frequencymedicine.symptomOptometryOphthalmicphysiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)
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