Refraction

Refraction equipment allows optometrists and ophthalmologists to measure refractive error, supporting accurate vision assessment and subsequent prescription decisions. Mainline Instruments supplies a curated range of refraction instruments and autorefractors from trusted manufacturers, including Oculus, TOMEY and Yeasn. The devices we supply are all designed to deliver fast, repeatable and reliable measurements as part of routine eye examinations and advanced diagnostics. These measurements support the assessment of myopia, hyperopia and astigmatism.

  • Accurate measurement of optical refractive error
  • Streamlined workflow with efficient, repeatable refraction assessment

Refraction Products

Filters

25 products

  • OCULUS LidStick® Starter Kit

    £235.00 + VAT
    • Complete kit includes LidStick® and essential clinical accessories
    • Supports precise eyelid retraction, eversion, and assessment procedures
    • Medicalgrade disposable components ensure hygiene and patient safety
    • Ideal for dry eye, meibography, and lid cleaning
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  • OCULUS Universal Trial Frame UB 4

    £369.95 + VAT
    • Holds up to ten standard 38 mm trial lenses
    • Adjustable pupillary distance ensures precise lens alignment accuracy
    • Ergonomic design with self‑braking nose bridge improves comfort
    • Adjustable temple length and cylinder axis for flexibility
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  • OCULUS Half Eye Trial Frame with Fixed Bridge

    £145.00 + VAT
    • Fixed bridge ensures stable, consistent lens positioning during refraction
    • Holds up to three standard 38 mm trial lenses
    • Adjustable pupillary distance allows precise alignment for accurate testing
    • Lightweight, durable design provides comfort for patient and clinician
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  • OCULUS Universal Trial Frame UB 5

    £349.95 + VAT
    • Holds up to twelve standard 38 mm trial lenses
    • Fully adjustable pupillary distance for precise lens alignment
    • Ergonomic design enhances comfort during extended refractions
    • Smooth cylinder axis adjustment improves clinical measurement accuracy
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  • OCULUS Universal Trial Frame UB 6

    £459.95 + VAT
    • Holds twelve lenses enabling complex subjective refraction combinations
    • Adjustable pupillary distance accommodates wide range of patients
    • Ergonomic frame enhances comfort and clinical exam efficiency
    • Clear scale and smooth controls support precise adjustments
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  • OCULUS Universal Trial Frame UB3+

    £314.95 + VAT
    • Adjustable PD allows precise alignment for accurate refractions
    • Supports five pairs of standard 38 mm trial lenses
    • Lightweight and ergonomic design improves patient comfort
    • Vertex distance scale and adjustable temples ease use
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  • OCULUS Children’s Half Eye Trial Frame with Adjustable Bridge

    £175.00 + VAT
    • Adjustable bridge ensures comfortable fit for children’s faces
    • Pupillary distance adjustment provides accurate lens alignment
    • Holds up to three standard trial lenses securely
    • Lightweight, durable construction minimizes fatigue during vision testing
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  • OCULUS Children’s Half Eye Trial Frame with Fixed Bridge

    £145.00 + VAT
    • Fixed bridge provides stable, consistent lens positioning
    • Adjustable pupillary distance ensures accurate pediatric refraction alignment
    • Holds three standard 38 mm trial lenses securely
    • Lightweight, durable frame designed for comfortable pediatric examinations
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  • OCULUS Half Eye Trial Frame with Adjustable Bridge

    £175.00 + VAT
    • Adjustable bridge ensures precise, comfortable fit across patients
    • Holds up to three standard 38 mm trial lenses
    • Adjustable pupillary distance supports accurate subjective refraction results
    • Lightweight, durable half eye design for daily clinical use
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What Does a Refractometer Help With?

Refractometers are used to accurately measure how light is focused within the eye, providing vital data on refractive error parameters, including sphere, cylinder and axis. This information helps specialists determine whether a patient is myopic, hyperopic or astigmatic.

 

Quality, trusted refraction instruments help streamline eye examinations by delivering fast, repeatable, objective measurements with minimal reliance on patient response. This is particularly valuable for initial assessments, screening, monitoring refractive changes over time or working with patients who find testing challenging. Modern refraction equipment often integrates advanced imaging and near-infrared (NIR) measurement technology to improve accuracy, stability and reliability across a wide range of eye conditions.

 

By providing consistent data, refractometers support efficient workflows, informed clinical decision-making and an improved patient experience, while complementing subjective refraction using trial frames and lens sets, alongside wider diagnostic testing such as keratometry for corneal assessment.

Frequently Asked Questions

What is refraction equipment?

Refraction equipment describes the diagnostic instruments used to measure refractive error by analysing how light passes through the eye. Refractometers support accurate assessment of vision errors such as myopia, hyperopia and astigmatism, helping determine subsequent prescription requirements and reliably monitoring changes over time.

Trusted by Eyecare Professionals Nationwide

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The ability for patients to measure their own IOP has the potential to transform glaucoma care. By using home monitoring, we can obtain far more IOP measurements to more accurately identify peak IOP and gain greater appreciation of IOP fluctuations.

Most patients find iCare HOME easy to use and as IOP measurements can be uploaded to the cloud, the clinician can view results remotely. In my practice, the introduction of iCare HOME has allowed us to move away from office-hour IOP phasing and has provided improved insight into IOP as a risk factor for glaucoma progression.

Andrew J Tatham

The Edinburgh Clinic, UK

With the benefit of true colour imaging, I am confident in my ability to discriminate between normal tissue and potential signs of pathology (EIDON, DRSplus)

Prof. Giuseppe Querques

University Vita Salute, Milan, Italy

The Pentacam® has revolutionised our approach to patient care. It’s not just about the technology – it’s about the confidence it gives us in our diagnoses and treatment plans.

Keyur Patel

Incorporating the Pentacam® into our practice was a game-changer. It’s become an essential tool in our daily operations, improving both efficiency and patient outcomes.

Brian Tompkins

Tompkins Knight & Son