No products in the cart.
Shopping Cart
No products in the cart.
Categories
- Imprinting & Others
- Calipers
- Buffs & brushes
- Irrigating solutions
- Surgical solutions
- Steroids
- Mydriatics & cycloplegics
- Glaucoma
- Accessories
- Office & surgical
- Safety glasses
- Lab & dispensing equipment
- Files and tweezers
- Tags
- Bags & labels
- Disinfectants & sterilization
- Exam equipment
- Exam & surgical supplies
- Diagnostic exam
- Diagnostic instruments
- Prisms
- Dry eye & occlusion
- Vision testing
- Eye charts
- Furnishings
- Punctal plugs
- Exam accessories
- Occluders
- Eye shields
- Office supplies
- Surgical instruments
- Post-op
- Pliers
- Misc tools
- Job trays
- Patches
- Wipes
- Mydriatic glasses
- Contact lens accessories
- Flat pack contact lens cases
- Lenses
- Specialty contact lens cases
- Screw top contact lens cases
- Rulers
- Measuring
- Mirrors
- Repair parts
- Rimless hardware
- Chemistry
- Lens dyes
- Blocking
- Machines
- Uv solutions
- Warmers
- Nose pads
- Screws
- Temple treatments
- Marking ink removers
- Edging supplies
- Lens marking
- Other lab chemicals
- Screwdrivers & wrenches
- Rimless tools
- Covid supplies
- Retail experience additions and enhancements
- Sunglasses
- Prescription sunglasses
- Children
- Fitovers
- Blue blocking
- Semi-hard cases
- Soft slip in cases
- Clamshell cases
- Kids sunglasses
- Ppe
- Plastic cases
- Readers
- Made in the usa
- Anti fog
- Covid
- Personalized products
- Surfacing
- Tints
- Adhesives
- Plating
- Cutting
- Polishing
- Blocks
- Lens handling
- Chemistry accessories
- Home page
- Wrenches
- Bench tools
- Burs
- Drills
- Taps
- Nuts & washers
- Tool holders
- Lens displays
- Trial lenses
- Contact lens modification
- Antibiotics
- Reading glasses
- Eye compress
- Value
- Soldering supplies
- Anti-inflammatory
- Gloves
- Uv protection
- Patient compliance
- Semi-hard
- Clamshell
- Slip-in
- Soft slip in
- Metal
- Ophthalmic
- Women
- Unisex
- Men
- Soft lenses
- Accesories
- Refractors
- Conventional
- Lighting
- Dispensing
- Trial lenses & frames
- Drillers
- Non-contact
- Lens testing
- Lab supplies
- Prism
- Lens holders
- Tinting systems
- Venting
- Surgical supplies
- Dome nuts
- Washers
- Exam supplies
- Pharmaceutical
- Neutralizers and htf
- Polarized plano lenses
- Exam room staples
- Tinting accessories
- Drops and gels
- Sodium chloride
- Lenscare & branding
- Lens cleaning cloths
- Liquid lens cleaners
- Lens wipes
- Lens cleaning kits
- Contact lens dispensing
- Industrial lens care
- Allergy
- Antibacterial
- Anti-viral
- Injectables
- Pain relief
- Vitamins
- Diagnostic strips
- Staining
- Anesthetic
- Contact lens supplies
- Contact lens solution
- Frames
- Cases
- Pharmaceuticals
- Optical
- Contacts
- Blue Filters
- Frame Deals
- Dry eye
Menu
- Home
- Products
- Eye charts
- LEA Gratings® A Preferential Looking Test
LEA Gratings® A Preferential Looking Test
Click image to zoom
LEA Gratings® A Preferential Looking Test
login to view price
SKU: hsurgical-6871
Type
(Not available)
You Might Also Like
OPTICAL NEWS
- Cure Blindness Project Releases Record-Breaking 2025 Impact Report
- LensCrafters and the OneSight EssilorLuxottica Foundation Team Up With Los Angeles Unified School District to Provide Life-Changing Vision Care
- OPTYX New York Inaugurates 13th Location, Launches Gift of Sight Community Eyecare Initiative
- EyeCare4Kids Joins Annual UTAHGIVES Fundraiser to Expand Free Vision Care for Utah Children
- Wake Forest University School of Medicine Students Provide Free Eye Health Screenings With Project SEE
- Cure Blindness Project and The Fred Hollows Foundation Partner to End Avoidable Blindness in Rwanda and Laos
- Charmant USA and Eddie Bauer Support American Forests
- Optical Industry Gears Up for Rock4Sight Fundraiser Concert on March 13 During Vision Expo 2026
- GoodVision USA Launches the GoodVision Alliance, Connecting Optical Practices to Global Vision Care
- Two Blind Brothers Achieves 501c3 Nonprofit Charity Status
- More Americans Are Satisfied With Eyecare Coverage, The Vision Council's Focused inSights Report Says
- New Research From VSP Vision Care Finds Most Employees Struggle With Digital Eye Strain
- VSP Vision Expands Investments in Community to Mark 70th Anniversary
- NationsBenefits Announces Acquisition of General Vision Services
- XP Health Secures New Partnerships on Heels of Plan B Funding, Adds Epstein to Board
- PECAA Marks One Year of VSP Vision Collaboration With Record PECAA Max Membership, New Events Lineup and Expanded Investment
- Lori Archer Named CEO of UnitedHealthcare Vision
- Healthy Vision Association, NAVCP, VSP Insurance and Others File Suit Against State of Texas Following Passage of State Law HB 1696
- VSP Vision's iCare Health Solutions Acquires Florida's Optical Outlets
- Versant Health Announces New Chief Growth & Strategy Officer and New Product and Operations Executives
- Transitions Names Winners of Optical Advancement Educational Grants
- Cure Blindness Project Releases Record-Breaking 2025 Impact Report
- The Vision Council Foundation Partners With AccuWeather and The Skin Cancer Foundation for National Sunglasses Day 2026
- Treehouse Eyes Tags Tony Sommer as New Chief Executive Officer
- The Global Eye Project: Restoring Sight and Building a Future in Haiti
- SUNY Optometry 2026 Commencement to Feature Microsoft’s David C. Rhew, MD, as Keynote Speaker, Will Recognize Three Honorees
- Zyloware-Kenmark Invites ECPs to Celebrate National Eyewear Day on June 6
- Women In Optometry’s 8th Annual Women’s Leadership Conference Is Scheduled for September 29
- Private Equity and Practice Transitions in 2026
- Prevent Blindness to Kick Off Its Focus on Eye Health Webinar Series Around the Theme of ‘Powering Partnerships to Advance Eye Health’
- Prevent Blindness Launches 6th Annual Fireworks Safety Week Ahead of July 4 Celebrations
- Luminopia Announces First International Licensing Agreement With ROHTO Pharmaceutical to Launch Pediatric Amblyopia Treatment in Japan
- Time Is Running Out—Nominate a Supportive Business Partner for Jobson's 'Ultimate Partners' Program, Deadline Is Today
- Time Is Running Out—Nominate a Supportive Business Partner for the VM and 20/20 Magazine 'Ultimate Partners' Program, Deadline Is June 5
- University of Miami Miller School of Medicine Names Pradeep Y. Ramulu, MD, MHS, Ph.D., Chair of Ophthalmology and Bascom Palmer Eye Institute
- Prevent Blindness Declares June Cataract Month, Provides Educational Resources on Leading Cause of Vision Loss
- The Vision Council Foundation Partners With AccuWeather and The Skin Cancer Foundation for National Sunglasses Day 2026
- Time Is Running Out—Nominate a Supportive Business Partner for the VM and 20/20 Magazine 'Ultimate Partners' Program, Deadline Is June 5
- How Genetic Testing and Counseling Can Improve Lives for Patients With IRDs
- LensCrafters and the OneSight EssilorLuxottica Foundation Team Up With Los Angeles Unified School District to Provide Life-Changing Vision Care
- University of Miami Miller School of Medicine Names Pradeep Y. Ramulu, MD, MHS, Ph.D., Chair of Ophthalmology and Bascom Palmer Eye Institute
- How Genetic Testing and Counseling Can Improve Lives for Patients With IRDs
- Zyloware-Kenmark Invites ECPs to Celebrate National Eyewear Day on June 6
- Private Equity and Practice Transitions in 2026
- Prevent Blindness Declares First-Ever Keratoconus Week, March 23-29, 2026
- Resilience to Take Center Stage Today at the 2026 Vision Monday Leadership Summit
- Vision Monday Publishes Its ‘Most Influential Women in Optical’ Special Report for 2026
- As Usage of GLP-1s Increases, Questions About Their Impact on Vision Health Prevail
- Former SUNY Optometry Student and SUNY Professor Lead Strabismus Clinical Research Study
- Prevent Blindness Declares March Workplace Eye Wellness Month, Shares Data from VSP Vision Care’s Workplace Vision Health Report
- Resilience to Take Center Stage Today at the 2026 Vision Monday Leadership Summit
- Vision Monday Publishes Its ‘Most Influential Women in Optical’ Special Report for 2026
- United Opticians Association and McCray Optical Supply Open Submissions for Inaugural Cleaning Cloth Design Contest
- Top Business and Health Care Experts to Explore the Power of ‘Resilience Rising’ at VM Summit
- Sandra S. Block, OD, to Deliver Keynote Address at Most Influential Women in Optical Luncheon
- Cira Collins, Victoria Hallberg and Kristen Tischler Join Lineup of Presenters at Most Influential Women in Optical Luncheon
- Erika Jurrens, Michelle Skinner to Present at VM’s 2026 Most Influential Women in Optical Luncheon
- Dr. Jason Lake to Moderate VM Summit Panel as ECPs Delve Into ‘What’s in Your Resiliency Toolbox?’
- Vision Monday Announces Its ‘Most Influential Women in Optical’ Honorees for 2026
- Dr. Alicia Feis to Moderate VM Summit Panel as Academic Leaders Explore ‘Incorporating Resilience Into the Next Generation of ODs’
- How Genetic Testing and Counseling Can Improve Lives for Patients With IRDs
- New Research Helps Build Understanding of Genetic Risks and Treatment Options for AMD and Low Vision
- Prevent Blindness Marks Age-Related Macular Degeneration and Low Vision Month With New Resources and Programs
- Rates of Blindness Increasing, With Experts Citing Aging Population and Access to Care as Key Factors
- Eschenbach Sponsored Two Visually Impaired Students to Attend Space Camp
- Prevent Blindness Announces Geographic Atrophy Awareness Week for Dec. 2-8, 2024
- In-Depth Report From The Vision Council Unveils the Realities of Life With Low Vision
- Illinois Society for the Prevention of Blindness Partners with Horizon Therapeutics to Provide Grants for Low Vision Equipment for Illinois Residents in Need
- Prevent Blindness Provides Free Resources for February’s Age-Related Macular Degeneration (AMD) and Low Vision Awareness Month
- Eschenbach Sponsors Two Visually Impaired Students to Go to Space Camp
- Cure Blindness Project Releases Record-Breaking 2025 Impact Report
- LensCrafters and the OneSight EssilorLuxottica Foundation Team Up With Los Angeles Unified School District to Provide Life-Changing Vision Care
- OPTYX New York Inaugurates 13th Location, Launches Gift of Sight Community Eyecare Initiative
- EyeCare4Kids Joins Annual UTAHGIVES Fundraiser to Expand Free Vision Care for Utah Children
- Wake Forest University School of Medicine Students Provide Free Eye Health Screenings With Project SEE
- Cure Blindness Project and The Fred Hollows Foundation Partner to End Avoidable Blindness in Rwanda and Laos
- Charmant USA and Eddie Bauer Support American Forests
- Optical Industry Gears Up for Rock4Sight Fundraiser Concert on March 13 During Vision Expo 2026
- GoodVision USA Launches the GoodVision Alliance, Connecting Optical Practices to Global Vision Care
- Two Blind Brothers Achieves 501c3 Nonprofit Charity Status
- More Americans Are Satisfied With Eyecare Coverage, The Vision Council's Focused inSights Report Says
- New Research From VSP Vision Care Finds Most Employees Struggle With Digital Eye Strain
- VSP Vision Expands Investments in Community to Mark 70th Anniversary
- NationsBenefits Announces Acquisition of General Vision Services
- XP Health Secures New Partnerships on Heels of Plan B Funding, Adds Epstein to Board
- PECAA Marks One Year of VSP Vision Collaboration With Record PECAA Max Membership, New Events Lineup and Expanded Investment
- Lori Archer Named CEO of UnitedHealthcare Vision
- Healthy Vision Association, NAVCP, VSP Insurance and Others File Suit Against State of Texas Following Passage of State Law HB 1696
- VSP Vision's iCare Health Solutions Acquires Florida's Optical Outlets
- Versant Health Announces New Chief Growth & Strategy Officer and New Product and Operations Executives
- Transitions Names Winners of Optical Advancement Educational Grants
- Cure Blindness Project Releases Record-Breaking 2025 Impact Report
- The Vision Council Foundation Partners With AccuWeather and The Skin Cancer Foundation for National Sunglasses Day 2026
- Treehouse Eyes Tags Tony Sommer as New Chief Executive Officer
- The Global Eye Project: Restoring Sight and Building a Future in Haiti
- SUNY Optometry 2026 Commencement to Feature Microsoft’s David C. Rhew, MD, as Keynote Speaker, Will Recognize Three Honorees
- Zyloware-Kenmark Invites ECPs to Celebrate National Eyewear Day on June 6
- Women In Optometry’s 8th Annual Women’s Leadership Conference Is Scheduled for September 29
- Private Equity and Practice Transitions in 2026
- Prevent Blindness to Kick Off Its Focus on Eye Health Webinar Series Around the Theme of ‘Powering Partnerships to Advance Eye Health’
- Prevent Blindness Launches 6th Annual Fireworks Safety Week Ahead of July 4 Celebrations
- Luminopia Announces First International Licensing Agreement With ROHTO Pharmaceutical to Launch Pediatric Amblyopia Treatment in Japan
- Time Is Running Out—Nominate a Supportive Business Partner for Jobson's 'Ultimate Partners' Program, Deadline Is Today
- Time Is Running Out—Nominate a Supportive Business Partner for the VM and 20/20 Magazine 'Ultimate Partners' Program, Deadline Is June 5
- University of Miami Miller School of Medicine Names Pradeep Y. Ramulu, MD, MHS, Ph.D., Chair of Ophthalmology and Bascom Palmer Eye Institute
- Prevent Blindness Declares June Cataract Month, Provides Educational Resources on Leading Cause of Vision Loss
- The Vision Council Foundation Partners With AccuWeather and The Skin Cancer Foundation for National Sunglasses Day 2026
- Time Is Running Out—Nominate a Supportive Business Partner for the VM and 20/20 Magazine 'Ultimate Partners' Program, Deadline Is June 5
- How Genetic Testing and Counseling Can Improve Lives for Patients With IRDs
- LensCrafters and the OneSight EssilorLuxottica Foundation Team Up With Los Angeles Unified School District to Provide Life-Changing Vision Care
- University of Miami Miller School of Medicine Names Pradeep Y. Ramulu, MD, MHS, Ph.D., Chair of Ophthalmology and Bascom Palmer Eye Institute
- How Genetic Testing and Counseling Can Improve Lives for Patients With IRDs
- Zyloware-Kenmark Invites ECPs to Celebrate National Eyewear Day on June 6
- Private Equity and Practice Transitions in 2026
- Prevent Blindness Declares First-Ever Keratoconus Week, March 23-29, 2026
- Resilience to Take Center Stage Today at the 2026 Vision Monday Leadership Summit
- Vision Monday Publishes Its ‘Most Influential Women in Optical’ Special Report for 2026
- As Usage of GLP-1s Increases, Questions About Their Impact on Vision Health Prevail
- Former SUNY Optometry Student and SUNY Professor Lead Strabismus Clinical Research Study
- Prevent Blindness Declares March Workplace Eye Wellness Month, Shares Data from VSP Vision Care’s Workplace Vision Health Report
- Resilience to Take Center Stage Today at the 2026 Vision Monday Leadership Summit
- Vision Monday Publishes Its ‘Most Influential Women in Optical’ Special Report for 2026
- United Opticians Association and McCray Optical Supply Open Submissions for Inaugural Cleaning Cloth Design Contest
- Top Business and Health Care Experts to Explore the Power of ‘Resilience Rising’ at VM Summit
- Sandra S. Block, OD, to Deliver Keynote Address at Most Influential Women in Optical Luncheon
- Cira Collins, Victoria Hallberg and Kristen Tischler Join Lineup of Presenters at Most Influential Women in Optical Luncheon
- Erika Jurrens, Michelle Skinner to Present at VM’s 2026 Most Influential Women in Optical Luncheon
- Dr. Jason Lake to Moderate VM Summit Panel as ECPs Delve Into ‘What’s in Your Resiliency Toolbox?’
- Vision Monday Announces Its ‘Most Influential Women in Optical’ Honorees for 2026
- Dr. Alicia Feis to Moderate VM Summit Panel as Academic Leaders Explore ‘Incorporating Resilience Into the Next Generation of ODs’
- How Genetic Testing and Counseling Can Improve Lives for Patients With IRDs
- New Research Helps Build Understanding of Genetic Risks and Treatment Options for AMD and Low Vision
- Prevent Blindness Marks Age-Related Macular Degeneration and Low Vision Month With New Resources and Programs
- Rates of Blindness Increasing, With Experts Citing Aging Population and Access to Care as Key Factors
- Eschenbach Sponsored Two Visually Impaired Students to Attend Space Camp
- Prevent Blindness Announces Geographic Atrophy Awareness Week for Dec. 2-8, 2024
- In-Depth Report From The Vision Council Unveils the Realities of Life With Low Vision
- Illinois Society for the Prevention of Blindness Partners with Horizon Therapeutics to Provide Grants for Low Vision Equipment for Illinois Residents in Need
- Prevent Blindness Provides Free Resources for February’s Age-Related Macular Degeneration (AMD) and Low Vision Awareness Month
- Eschenbach Sponsors Two Visually Impaired Students to Go to Space Camp
Your experience on this site will be improved by allowing cookies. By accepting, you consent to our use of cookies and Hotjar for analytics purposes.