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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 2.75 group | Experimental | Patients with 2.75 diopters multifocal intraocular lens |
|
| 3.25 group | Active Comparator | Patients with +3.25 diopters multifocal intraocular lens |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| +2.75 diopters multifocal intraocular lens | Device |
| ||
| +3.25 diopters multifocal intraocular lens |
| Measure | Description | Time Frame |
|---|---|---|
| Visual Acuity | Uncorrected distance visual acuity and uncorrected near visual acuity | 3 months |
| Measure | Description | Time Frame |
|---|---|---|
| Contrast sensitivity measured by the Functional Acuity Contrast Test (FACT) of the Optec 6500 view-in test system | 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 | 3 months |
| internal aberration measured by the ray-tracing aberrometer |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine | Seoul | 102-752 | South Korea |
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| ID | Term |
|---|---|
| D002386 | Cataract |
| ID | Term |
|---|---|
| D007905 | Lens Diseases |
| D005128 | Eye Diseases |
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| Device |
|
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 |
| 3 months |