Cataract
Conditions
Brief summary
This study will compare cataract patients with implantation of diffractive multifocal IOL with an additional power of +2.75 diopters (Group 1) and with +3.25 diopters (Group 2). Evaluations will be performed 1 and 3 months following cataract surgery, including measurement of uncorrected distance visual acuity (UDVA), refractive error (manifest refraction \[MR\]), and uncorrected near visual acuity (UNVA) at 33, 40, and 50 cm. At 3 months, internal aberrations and contrast sensitivity will be evaluated and subjects will complete a questionnaire on outcomes satisfaction, visual symptoms, and spectacle use.
Interventions
DEVICE+2.75 diopters multifocal intraocular lens
DEVICE+3.25 diopters multifocal intraocular lens
Sponsors
Yonsei University
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
* age \>= 18 * cataract patients with lens opacities classification higher than grade III * patients who desire to be spectacle indepence for distance and near vision
Exclusion criteria
* previous ocular surgery or trauma * presence of corneal opacities * fundus abnormalities * glaucoma * uveitis * amblyopia * systemic disease * posterior capsule rupture during cataract surgery
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Visual Acuity | 3 months | Uncorrected distance visual acuity and uncorrected near visual acuity |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Contrast sensitivity measured by the Functional Acuity Contrast Test (FACT) of the Optec 6500 view-in test system | 3 months | Internal aberrations measured by the ray-tracing aberrometer and contrast sensitivity measured by the Functional Acuity Contrast Test (FACT) of the Optec 6500 view-in test system |
| internal aberration measured by the ray-tracing aberrometer | 3 months | Internal aberrations measured by the ray-tracing aberrometer and contrast sensitivity measured by the Functional Acuity Contrast Test (FACT) of the Optec 6500 view-in test system |
Countries
South Korea
Outcome results
None listed