Optical Quality After Implantation of a Spherical or Aspherical Intraocular Lens in Hypermetropic Patients

Medical University of Graz

Status: Completed

Conditions: Cataract; Spherical Aberrations; Depth of Focus; Intraocular Lenses

Treatments: Device: AMO Sensar AR40e; Device: AMO Tecnis ZA9003

Study type: Interventional

Funder types: Other

Identifiers

NCT01995630

SIOLvsAIOL

Details and patient eligibility

About

The purpose of this study is to evaluate differences in the depth of focus after implantation of a spherical or aspheric IOL in hypermetropic and emmetropic patients. After implantation of a spherical IOL hypermetropic patients may achieve a better depth of focus compared to emmetropic patients due to a larger amount of spherical aberrations.

Enrollment: 62 patients

Sex: All

Ages: 40 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Cataract
• Dioptric power of IOL >22.0 D in hypermetropic patients and 18.0-22.0 D in emmetropic patients, respectively

Exclusion criteria

• Uveitis, pathology of the retina or the optic nerve
• Corneal scarring or irregularities
• Astigmatism >1.5 D
• Amblyopia
• Perioperative complications
• Postoperative refractive error >2.0 D of spherical equivalent
• Postoperative DCVA <0.8 (ETDRS)

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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62 participants in 4 patient groups

Hypermetropic, spherical IOL

Experimental group

Description:

AMO Sensar AR40e

Treatment:

Device: AMO Sensar AR40e

Hypermetropic, aspheric IOL

Experimental group

Description:

AMO Tecnis ZA9003

Treatment:

Device: AMO Tecnis ZA9003

Emmetropic, spherical IOL

Active Comparator group

Description:

AMO Sensar AR40e

Treatment:

Device: AMO Sensar AR40e

Emmetropic, aspheric IOL

Active Comparator group

Description:

AMO Tecnis ZA9003

Treatment:

Device: AMO Tecnis ZA9003