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Functional Vision With ACRYSOF® IQ IOLs Blue Light Filtration

Not Applicable
Completed
Conditions
Cataract
Interventions
Device: Clear clip-on glasses
Device: ACRYSOF® IQ IOL
Device: Blue light filter clip-on glasses
Device: Clear IOL
Registration Number
NCT02219997
Lead Sponsor
Alcon Research
Brief Summary

The purpose of this study is to compare the reaction time (as measured by braking reaction time in seconds during simulated driving) under glare and no-glare conditions in subjects implanted with ACRYSOF® IQ intraocular lenses (IOLs) to subjects implanted with clear IOLs. This study will enroll subjects previously implanted with IOLs in both eyes for at least 3 months.

Detailed Description

Subjects completed 2 visits to the investigational site.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
90
Inclusion Criteria
  • Pseudophakes with ACRYSOF® IQ monofocal IOLs or clear (no blue light filter) IOLs in both eyes for at least 3 months.
  • Willing and able to understand and sign an informed consent form.
  • Corrected visual acuity (CVA) of 20/40 or better.
  • Have a valid driver's license.
  • Depth perception of at least 100 arc seconds.
  • Other protocol-specified inclusion criteria may apply.
Exclusion Criteria
  • Ocular pathology, degeneration, or media opacity.
  • Color vision defect.
  • Use of ocular or systemic medications that impact macular pigment density or reaction time, including but not limited to, lutein, zeaxanthin, barbiturates, tranquilizers or amphetamines.
  • System conditions affecting connective tissue or sensory-motor coordination.
  • Other protocol-specified exclusion criteria may apply.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
ACRYSOF IQ IOLACRYSOF® IQ IOLACRYSOF® IQ IOL with or without clear clip-on glasses worn for 3 hours
Clear IOLClear IOLClear IOL with or without blue light filter clip-on glasses and clear clip-on glasses, worn in a cross-over fashion, as randomized, for 4 hours total
Clear IOLClear clip-on glassesClear IOL with or without blue light filter clip-on glasses and clear clip-on glasses, worn in a cross-over fashion, as randomized, for 4 hours total
ACRYSOF IQ IOLClear clip-on glassesACRYSOF® IQ IOL with or without clear clip-on glasses worn for 3 hours
Clear IOLBlue light filter clip-on glassesClear IOL with or without blue light filter clip-on glasses and clear clip-on glasses, worn in a cross-over fashion, as randomized, for 4 hours total
Primary Outcome Measures
NameTimeMethod
Change in Braking Reaction Time From No-glare to GlareVisit 2, up to Day 30

Braking reaction time (time to brake, in seconds) was assessed using a driving simulator in no-glare and glare conditions. The subject was presented with a driving scenario during which an obstruction (car pulling over from either side of the road in a random fashion) was presented. Subjects braked in an attempt to avoid colliding with the obstruction, and the braking reaction time was recorded. The experiment was repeated with a glare source present. Both assessments (no-glare and glare) occurred on the same day. Change in braking reaction time was calculated as glare minus no-glare.

Secondary Outcome Measures
NameTimeMethod
Change in Braking Reaction Time From No-glare to Glare (Clear IOLs)Visit 2, Up to Day 30

Braking reaction time (time to brake, in seconds) was assessed using a driving simulator in no-glare and glare conditions. The subject was presented with a driving scenario during which an obstruction (car pulling over from either side of the road in a random fashion) was presented. Subjects braked in an attempt to avoid colliding with the obstruction, and the braking reaction time was recorded. The experiment was repeated with a glare source present. Both assessments (no-glare and glare) occurred on the same day. Change in braking reaction time was calculated as glare minus no-glare. This outcome measure was pre-specified for Clear IOL only.

Change in Braking Reaction Time From No-glare to Glare (ACRYSOF® IQ IOL + Placebo Filter; Clear IOL + BLF)Visit 2, Up to Day 30

Braking reaction time (time to brake, in seconds) was assessed using a driving simulator in no-glare and glare conditions. The subject was presented with a driving scenario during which an obstruction (car pulling over from either side of the road in a random fashion) was presented. Subjects braked in an attempt to avoid colliding with the obstruction, and the braking reaction time was recorded. The experiment was repeated with a glare source present. Both assessments (no-glare and glare) occurred on the same day. Change in braking reaction time was calculated as glare minus no-glare.

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