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Improvement of reading ability in presbyopic patients by using aspheric multifocal LASIK

Improvement of reading ability in presbyopic patients by using aspheric multifocal LASIK

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00003422
Enrollment
35
Registered
2012-01-25
Start date
2012-02-14
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

H52.4

Interventions

Group 1: Multifocal LASIK (PresbyMAX, Schwind eye-tech-solutions, Kleinostheim).

Sponsors

Augenklinik der Johann Wolfgang Goethe-Universität
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - Presbyopia - Myopia or hyperopia up to 5D (spherical equivalent) - Astigmatism up to 3D - pupil (measured with Procyon): high mesopic: 2,5 - 3mm, low mesopic: = 4,5mm - Offset (pupil vs. vertex measured with Keratron Scout): 0 - Ocular spherical aberration (C4,0 @ 6mm) measured with iTrace: > -0,2 - Ocular HOA RMS (@ 6mm) measured with iTrace: <0,67

Exclusion criteria

Exclusion criteria: Occupational groups, dependent on good visual acuity, who might be hindered in career du to possible visual complications (e.g. motorists, pilots).

Design outcomes

Primary

MeasureTime frame
Comparison of preoperative and one year postoperative uncorrected and distance corrected near visual acuity (logRAD). Near visual acuity is tested using Salzburg Reading Desk (SRD).

Secondary

MeasureTime frame
Following tests are conducted 1 month, 3 month, 6 month and 1 year postoperatively: - reading ability (logRAD) is tested using Salzburg Reading Desk (SRD). - refractive error - visual acuity at distance, intermediate and near - contrast sensitivity (FF-Cats) - glare sensitivity (FF-CATS) - ocular and corneal aberrations (i-Trace) - corneal topography (Pentacam) - subjective optical quality (questionaire)

Countries

Germany

Contacts

Public ContactChristine Titke

Klinikum der Johann Wolfgang Goethe Universität

christine.titke@kgu.de069 6301 83311

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026