Comparison of the Visual Performance After Implantation of a Trifocal Intraocular Lens(AT Lisa Tri 839MP) and Two Bifocal Intraocular Lenses(ReSTOR +2.5/+ 3.0D and Diff-aay)
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Intraocular Lens
- Sponsor
- Aier School of Ophthalmology, Central South University
- Enrollment
- 60
- Locations
- 1
- Primary Endpoint
- Uncorrected intermediate visual acuity
- Last Updated
- 7 years ago
Overview
Brief Summary
This is a prospective, consecutive, nonrandomized,comparative study. Comparison of the Visual Performance After Implantation of a Trifocal Intraocular Lens and Two Bifocal Intraocular Lenses
Detailed Description
Multifocal intraocular lenses were introduced in the 1980s and have the benefit of promoting near and far vision simultaneous. However, these multifocal lenses have the disadvantages, including lower contrast sensitivity(CS) and visual discomfort, such as halos, glares and starburst, et al. Therefore, careful patient selection is crucial to achieve good postoperative results. The purpose of this study was to compare the visual outcomes and subjective visual quality between bifocal intraocular Lens(ReSTOR +2.5/+ 3.0D and Diff-aay) and trifocal intraocular Lens(AT Lisa tri 839MP). This prospective, nonrandomized, consecutive, comparative study included the assessment of 60 patients implanted with multifocal intraocular lens. visual acuity was tested in all cases. Ophthalmological evaluation included the measurement of uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), uncorrected near visual acuity (UNVA), and uncorrected intermediate visual acuity (UIVA), the analysis of contrast sensitivity (CS), visual defocus curve, spectacle independence, patient satisfaction, residual sphere, spherical equivalent (SE), cylinder and complications.
Investigators
Eligibility Criteria
Inclusion Criteria
- Not provided
Exclusion Criteria
- •existence of any corneal disease;
- •previous eye surgery;
- •illiteracy;
- •previous refractive surgery;
- •expected postoperative corneal astigmatism more than 1.00D;
- •higer-order aberration more than 0.3;
- •spherical aberration more than 0.3μm;
- •intraoperative or postoperative complications.
Outcomes
Primary Outcomes
Uncorrected intermediate visual acuity
Time Frame: 3 months after surgery
Uncorrected intermediate visual acuity (60cm) were measured using the reading table model of the Early Treatment Diabetic Retinopathy Study charts (ETDRS; Vector Vision, Ltd, Greenville, OH, USA).
Uncorrected distance visual acuity
Time Frame: 3 months after surgery
Uncorrected distance visual acuity (4m) were measured using the reading table model of the Early Treatment Diabetic Retinopathy Study charts (ETDRS; Vector Vision, Ltd, Greenville, OH, USA).
Uncorrected near visual acuity
Time Frame: 3 months after surgery
Uncorrected near visual acuity (40cm) were measured using the reading table model of the Early Treatment Diabetic Retinopathy Study charts (ETDRS; Vector Vision, Ltd, Greenville, OH, USA).