Light Filters in Intraocular Lenses (IOLs) and Its Influence on Colour and Contrast Vision.

Influence of Light-filters in IOLs on Color Perception and Contrast Acuity. A Randomized, Double-masked Study With Intraindividual Comparison.

Status

Completed

Phases

Phase 4

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT00612729

Enrollment

Registered

2008-02-12

Start date

2008-05-31

Completion date

2010-06-30

Last updated

2010-08-17

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

Conditions

Cataract

Keywords

intraocular lens, light filtering intraocular lens, contrast acuity, color vision

Brief summary

Visible-light-filtering IOLs are implanted increasingly often in cataract surgery. Several studies examined the effect of light-filters on contrast and colour vision. However, the study outcomes were varying. The present study investigated the effect of two light-filtering IOL on colour perception and contrast acuity using highly sensitive measurement methods.

Detailed description

Prospective, randomized, double-masked study with intraindividual comparison. Implantation of a Polylens Y30 IOL in one eye and an Orange Series Model PC 440 Y in the contralateral eye.

Interventions

PROCEDUREPolylens Y30 intraocular lens

cataract surgery

PROCEDUREOrange Series Model PC 440 Y intraocular lens

cataract surgery

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender

ALL

Age

55 Years to 80 Years

Healthy volunteers

Inclusion criteria

* bilateral age-related cataract * age 55 to 80 years * expected postoperative visual acuity of at least 1.0

Exclusion criteria

* amblyopia * corneal scars * diabetes * arterial hypertonia * pseudoexfoliation-syndrome * earlier ocular surgeries or laser treatments * intraocular tumors * color abnormalities * expected postoperative visual acuity lower 1.0

Design outcomes

Primary

Measure	Time frame
contrast acuity	3 month after surgery

Secondary

Measure	Time frame
visual acuity and color vision	3 month after surgery
colour perception	3 month after surgery

Countries

Austria

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026