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

N/ACompletedNCT01995630

Medical University of Graz62 enrolled

Overview

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.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Enrollment

Conditions

Cataract Spherical Aberrations Intraocular Lenses Depth of Focus

Interventions

AMO Tecnis ZA9003DEVICE

AMO Sensar AR40eDEVICE

Eligibility

Sex: ALLMin age: 40 YearsMax age: 80 Years

Medical Language ↔ Plain English

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)

Locations (1)

Dept. of Ophthalmology, Medical University of Graz

Graz, Austria

Outcomes

Primary Outcomes

Distance-corrected intermediate visual acuity

Time frame: 3 month postop

Secondary Outcomes

Distance-corrected near visual acuity

Time frame: 3 month postop

Uncorrected distance visual acuity

Time frame: 3 month postop

Corrected distance visual acuity

Time frame: 3 month postop

Uncorrected near visual acuity

Time frame: 3 month postop

Corrected near visual acuity

Time frame: 3 month postop

Pseudoaccomodation

Time frame: 3 month postop

Photopic contrast sensitivity

Time frame: 3 month postop

Mesopic contrast sensitivity

Time frame: 3 month postop

Spherical aberrations

Time frame: 3 month postop

High order aberrations

Time frame: 3 month postop

Data from ClinicalTrials.gov

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