Three Intraocular Lenses Designed to Improve Distance, Intermediate and Near Vision Following Lens Extraction

Phase 4

Completed

• Conditions: Cataract
• Interventions: Device: ReSTOR 3.0; Device: Crystalens AO; Device: AMO Tecnis Multifocal

• Registration Number: NCT01225952
• Lead Sponsor: Bausch & Lomb Incorporated

Brief Summary

The objective of this study is to compare the contrast sensitivity, high and low contrast visual acuity (VA), glare meter outcomes, and subject satisfaction with three different FDA-approved intraocular lenses (IOLs) designed to improve distance, intermediate, and near vision following lens extraction in adults at least 40 years of age.

Detailed Description

Not available

Study Timeline

• Study Start: 2010-07
• Study First Submitted: 2010-10-19
• Study First Submitted QC: 2010-10-20
• Study First Posted: 2010-10-21
• Primary Completion: 2011-06
• Study Completion: 2011-07
• Results First Submitted: 2012-08-31
• Status Verified: 2012-12
• Results First Submitted QC: 2012-12-11
• Last Update Submitted: 2012-12-11
• Results First Posted: 2013-01-18
• Last Update Posted: 2013-01-18

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 93

Inclusion Criteria

• Subjects must be undergoing primary IOL implantation for the correction of aphakia following continuous curvilinear anterior capsulotomy and phacoemulsification cataract extraction.
• Subjects must require a spherical lens power from 10.00 diopters (D) to 33.00 D.
• Subjects must have the potential for corrected distance visual acuity (CDVA) of 20/32 or better in both eyes.
• Subjects must have stopped contact lens wear for at least two weeks for soft lens wearers or three weeks for gas permeable lens wearers prior to biometry and surgery.
• At the time of surgery, subjects must have an intact centered capsulorhexis, intact posterior capsule, and no zonular rupture.
• Subjects must have ≤ 1.25 D of preoperative corneal astigmatism in both eyes.

Exclusion Criteria

• Subjects with diagnoses of degenerative visual disorders (eg, macular degeneration, or other retinal disorders) that cause potential acuity losses to a level of 20/32 or worse.
• Subjects with conditions with increased risk of zonular rupture, such as pseudoexfoliation syndrome.
• Subjects who have any active inflammation or edema (swelling) of the cornea, including but not limited to the following: keratitis, keratoconjunctivitis, and keratouveitis.
• Subjects with uncontrolled glaucoma.
• Subjects with previous retinal detachment.
• Subjects with visually significant diabetic retinopathy (proliferative or nonproliferative) which reduces potential acuity to 20/32 or worse.
• Subjects with rubella, bilateral congenital, traumatic, complicated or polar cataract.
• Subjects with marked microphthalmos or aniridia.
• Subjects who have had previous corneal surgery.
• Subjects with irregular corneal astigmatism.
• Subjects with amblyopia which reduces potential acuity to 20/32 or worse.
• Subjects with optic atrophy.
• Subjects with iris neovascularization.
• Subjects with clinically significant retinal pigment epithelium/macular changes which reduces potential acuity to 20/32 or worse.
• Subjects with chronic use of systemic steroids or immunosuppressive medications.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
ReSTOR 3.0	ReSTOR 3.0	An aspheric multifocal IOL (Alcon Laboratories) combines the functions of an apodized diffractive region and a refractive region.
Crystalens AO	Crystalens AO	Bausch \& Lomb silicone multi-piece accommodating IOL is a modified plate haptic lens
AMO Tecnis Multifocal	AMO Tecnis Multifocal	A foldable hydrophobic acrylic IOL,(Abbott Medical Optics), is an ultraviolet light-absorbing posterior chamber IOL

Primary Outcome Measures

Name	Time	Method
Monocular Mesopic Contrast Sensitivity Without Glare(12 Cycles/Degree)	Postoperative visit 4 (day 120-180)	A single eye (monocular) in dim light (mesopic) measuring contrast sensitivity; The participant is presented with a sine-wave grating target of a given spatial frequency (cycles/degree of visual angle) where the smaller the number of cycles/degree the wider apart the gradations (vertical lines of grayness). The participant's ability to detect changes in contrast is determined. Higher mean indicates improved contrast sensitivity.
Monocular Mesopic Contrast Sensitivity Without Glare(1.5, 3 Cycles/Degree)	Postoperative visit 4 (day 120-180)	A single eye (monocular) in dim light (mesopic) measuring contrast sensitivity; The participant is presented with a sine-wave grating target of a given spatial frequency (cycles/degree of visual angle) where the smaller the number of cycles/degree the wider apart the gradations (vertical lines of grayness). The participant's ability to detect changes in contrast is determined. Higher mean indicates improved contrast sensitivity.
Monocular Mesopic Contrast Sensitivity Without Glare (1.5, 3 Cycles/Degree)	Postoperative visit 3 (day 30-60)	A single eye (monocular) in dim light (mesopic) measuring contrast sensitivity; The participant is presented with a sine-wave grating target of a given spatial frequency (cycles/degree of visual angle) where the smaller the number of cycles/degree the wider apart the gradations (vertical lines of grayness). The participant's ability to detect changes in contrast is determined. Higher mean indicates improved contrast sensitivity.
Monocular Mesopic Contrast Sensitivity Without Glare(18 Cycles/Degree)	Postoperative visit 4 (day 120-180)	A single eye (monocular) in dim light (mesopic) measuring contrast sensitivity; The participant is presented with a sine-wave grating target of a given spatial frequency (cycles/degree of visual angle) where the smaller the number of cycles/degree the wider apart the gradations (vertical lines of grayness). The participant's ability to detect changes in contrast is determined. Higher mean indicates improved contrast sensitivity.
Monocular Mesopic Contrast Sensitivity Without Glare(6 Cycles/Degree)	Postoperative visit 4 (day 120-180)	A single eye (monocular) in dim light (mesopic) measuring contrast sensitivity; The participant is presented with a sine-wave grating target of a given spatial frequency (cycles/degree of visual angle) where the smaller the number of cycles/degree the wider apart the gradations (vertical lines of grayness). The participant's ability to detect changes in contrast is determined. Higher mean indicates improved contrast sensitivity.

Secondary Outcome Measures

Name	Time	Method
Monocular Mesopic Contrast Sensitivity With Glare(6 Cycles/Degree)	Postoperative visit 4 (day 120-180)	In one eye (monocular) in dim light (mesopic) measuring contrast sensitivity; The participant is presented with a sine-wave grating target of a given spatial frequency (cycles/degree of visual angle) where the smaller the number of cycles/degree the wider apart the gradations (vertical lines of grayness). The participant's ability to detect changes in contrast is determined. Higher mean indicates improved contrast sensitivity.
Binocular Mesopic Contrast Sensitivity Without Glare(18 Cycles/Degree)	Postoperative visit 4 (day 120-180)	In two eyes (binocular) in dim light (mesopic) measuring contrast sensitivity; The participant is presented with a sine-wave grating target of a given spatial frequency (cycles/degree of visual angle) where the smaller the number of cycles/degree the wider apart the gradations (vertical lines of grayness). The participant's ability to detect changes in contrast is determined. Higher mean indicates improved contrast sensitivity.
Monocular Mesopic Contrast Sensitivity With Glare (3 Cycles/Degree)	Postoperative visit 3 (day 30-60)	In one eye (monocular) in dim light (mesopic) measuring contrast sensitivity; The participant is presented with a sine-wave grating target of a given spatial frequency (cycles/degree of visual angle) where the smaller the number of cycles/degree the wider apart the gradations (vertical lines of grayness). The participant's ability to detect changes in contrast is determined. Higher mean indicates improved contrast sensitivity.
Monocular Mesopic Contrast Sensitivity With Glare(18 Cycles/Degree)	Postoperative visit 4 (day 120-180)	In one eye (monocular) in dim light (mesopic) measuring contrast sensitivity; The participant is presented with a sine-wave grating target of a given spatial frequency (cycles/degree of visual angle) where the smaller the number of cycles/degree the wider apart the gradations (vertical lines of grayness). The participant's ability to detect changes in contrast is determined. Higher mean indicates improved contrast sensitivity.
Monocular Mesopic Contrast Sensitivity With Glare(3 Cycles/Degree)	Postoperative visit 4 (day 120-180)	In one eye (monocular) in dim light (mesopic) measuring contrast sensitivity; The participant is presented with a sine-wave grating target of a given spatial frequency (cycles/degree of visual angle) where the smaller the number of cycles/degree the wider apart the gradations (vertical lines of grayness). The participant's ability to detect changes in contrast is determined. Higher mean indicates improved contrast sensitivity.
Binocular Mesopic Contrast Sensitivity Without Glare(1.5, 3 Cycles/Degree)	Postoperative visit 4 (day 120-180)	In two eyes (binocular) in dim light (mesopic) measuring contrast sensitivity; The participant is presented with a sine-wave grating target of a given spatial frequency (cycles/degree of visual angle) where the smaller the number of cycles/degree the wider apart the gradations (vertical lines of grayness). The participant's ability to detect changes in contrast is determined. Higher mean indicates improved contrast sensitivity.
Monocular Mesopic Contrast Sensitivity With Glare(1.5 Cycles/Degree)	Postoperative visit 4 (day 120-180)	In one eye (monocular) in dim light (mesopic) measuring contrast sensitivity; The participant is presented with a sine-wave grating target of a given spatial frequency (cycles/degree of visual angle) where the smaller the number of cycles/degree the wider apart the gradations (vertical lines of grayness). The participant's ability to detect changes in contrast is determined. Higher mean indicates improved contrast sensitivity.
Binocular Mesopic Contrast Sensitivity Without Glare(6 Cycles/Degree)	Postoperative visit 4 (day 120-180)	In two eyes (binocular) in dim light (mesopic) measuring contrast sensitivity; The participant is presented with a sine-wave grating target of a given spatial frequency (cycles/degree of visual angle) where the smaller the number of cycles/degree the wider apart the gradations (vertical lines of grayness). The participant's ability to detect changes in contrast is determined. Higher mean indicates improved contrast sensitivity.
Binocular Mesopic Contrast Sensitivity Without Glare(12 Cycles/Degree)	Postoperative visit 4 (day 120-180)	In two eyes (binocular) in dim light (mesopic) measuring contrast sensitivity; The participant is presented with a sine-wave grating target of a given spatial frequency (cycles/degree of visual angle) where the smaller the number of cycles/degree the wider apart the gradations (vertical lines of grayness). The participant's ability to detect changes in contrast is determined. Higher mean indicates improved contrast sensitivity.
Monocular Mesopic Contrast Sensitivity With Glare(12 Cycles/Degree)	Postoperative visit 4 (day 120-180)	In one eye (monocular) in dim light (mesopic) measuring contrast sensitivity; The participant is presented with a sine-wave grating target of a given spatial frequency (cycles/degree of visual angle) where the smaller the number of cycles/degree the wider apart the gradations (vertical lines of grayness). The participant's ability to detect changes in contrast is determined. Higher mean indicates improved contrast sensitivity.

Trial Locations

Locations (1)

Asian Eye Institute; 🇵🇭 Makati City, Philippines