LUMIO

Portable Device for Rapid Anterior Eye Examination and Fluorescein Assessment

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What is Lumio?

The Lumio is a portable, handheld device designed for anterior eye examination and fluorescein assessment across clinical, outreach, and domiciliary settings. It delivers crisp white and blue illumination, paired with AVS’ clip‑in yellow filter featuring an enhanced colour formula that significantly improves fluorescein contrast and clarity for more precise clinical assessment. Designed for dependable daily use, a durable body, adjustable brightness, replaceable battery and 7× magnification support fast, confident examinations on the go.

Lumio Viewing Capabilities

White Light

  • General anterior eye & lid inspection
  • Infections (Keratitis, Uveitis, Blepharitis)
  • Corneal abrasions & scratches
  • Cataract opacity & vascularisation (under dilation)
  • Ingrowing or misdirected eyelashes (trichiasis)
Blue Light & Fluorescein Filter
  • Corneal ulcers/ lesions
  • Tear breakup, instability & dry eye
  • Superficial punctate keratitis (SPK)
  • Foreign bodies, debris & abrasions
  • Contact lens fitting/ irritation /poor lens fit 
Fluorescein dye illumination using Lumio device for corneal surface evaluation.
Close-up of eyelid showing signs of Demodex blepharitis under Lumio examination.
Man undergoing advanced eye examination with the Lumio device and clip-in fluorescein wratten filter by Aston Vision Sciences
Eye with visible cataract viewed through Lumio diagnostic device
Foreign Bodies
Patient being examined in their home using the Lumio anterior eye examination tool to test vision

Clinical Applications

Blue light shone on to patient eye with Lumio device held close

Dry Eye Assessment and Tear Film Evaluation

Lumio enables detailed assessment of dry eye disease through enhanced visualisation of fluorescein staining patterns and tear film behaviour. The combination of blue light illumination and AVS’ enhanced fluorescein filter allows clinicians to clearly observe tear break-up, punctate staining, and surface irregularities, supporting more confident diagnosis and grading.

Corneal and Ocular Surface Examination

The device supports high-quality examination of the cornea, conjunctiva, and lid margins. Subtle epithelial defects, abrasions, and early-stage surface pathology can be identified more clearly, enabling earlier detection and more accurate clinical decision-making.

Lumio anterior eye examination on older patient

Fluorescein-Based Diagnostic Assessment

LUMIO is particularly effective for fluorescein-based evaluations, where contrast and clarity are critical. The enhanced filtration system improves visibility of fluorescein uptake, allowing clinicians to better assess corneal staining, foreign bodies, and surface damage in both routine and acute presentations.

Contact Lens and Anterior Segment Reviews

The portability and magnification of LUMIO make it well suited for contact lens assessments, including evaluation of lens fit, tear film interaction, and ocular surface response. It provides a practical solution for clinicians working across multiple locations or conducting non-traditional clinic-based care.

Fluorescein observation with a contact lens present leading to unusual lighting patterns
Patient sitting and standing waiting for eye tests

Rapid Assessment in High-Volume Settings

In busy clinics or outreach environments, LUMIO enables fast and efficient anterior eye examination without compromising quality. Its ease of use and quick setup support high patient throughput while maintaining consistent clinical standards.

Key Features of the Lumio

Dual-Mode Illumination for Versatile Examination

Combines broadband white and tuned blue illumination with three brightness levels, allowing clinicians to switch seamlessly between anterior eye examination and fluorescein assessment, improving workflow efficiency and reducing reliance on multiple devices.

Enhanced Fluorescein Viewing with AVS Filter

The unique AVS clip-in yellow filter features an enhanced colour formula that improves fluorescein contrast and clarity by reducing blue light scatter, enabling precise assessment of corneal staining, tear film, and ocular surface integrity.

Portable, Handheld Design for on the go examination

Compact and lightweight, Lumio is designed for use across clinical, domiciliary, and outreach settings. Its handheld format allows clinicians to perform fast, high-quality anterior eye examinations without reliance on traditional slit lamp infrastructure.

7× Magnification for Detailed Visualisation

Lumio provides 7× magnification, offering a clear and detailed view of the anterior segment. This supports accurate identification of subtle pathology, including surface irregularities, staining patterns, and lid margin abnormalities.

Flexible Examination Without Constraints

Lumio enables comfortable examination in patients who cannot be positioned at a traditional slit lamp, including those with mobility limitations or posture difficulties. Patients may be examined seated, reclined, or in non-standard positions, enabling across all ages.

Smartphone-Compatible Imaging

Lumio allows clinicians to quickly and easily capture images using a smartphone, supporting documentation, remote review, and clinical communication without requiring dedicated imaging systems.

Use Cases Across Clinical and Community Settings

Lumio is designed to support high-quality anterior eye examination across a wide range of real-world clinical environments. Its portability, ease of use, and fluorescein assessment capability make it suitable for both traditional practice settings and situations where access to conventional equipment is limited.
Fluorescein dye illumination using Lumio device for corneal surface evaluation.
In clinical environments, Lumio provides a flexible alternative or complement to traditional slit-lamp examination. It supports rapid assessment of the anterior segment, fluorescein staining, and routine eye evaluations, making it particularly useful in busy practices or multi-room workflows.
Lumio is particularly valuable for locum clinicians and practitioners working across multiple sites. The supplied carry case and portable design allows clinicians to carry a consistent anterior eye examination and fluorescein assessment tool between locations, ensuring continuity in clinical quality regardless of the equipment available at each practice. This flexibility supports efficient workflows and reduces dependence on fixed slit-lamp infrastructure.
Patients in community centre waiting room
In outreach settings, LUMIO enables clinicians to move beyond basic vision screening and deliver more comprehensive eye assessments. Its portability allows high-quality fluorescein examination and anterior eye evaluation to be carried out directly in the field, even in resource-limited environments.
Lumio plays a critical role in domiciliary care, allowing clinicians to perform thorough anterior eye examinations for patients who are unable to attend clinic due to mobility limitations or health conditions. It enables comfortable, in-home assessment while maintaining clinical confidence and diagnostic accuracy.
Read how Lumio expands patient access to care

Clinical Evidence and Case Studies

Older woman undergoing an eye exam using the handheld portable Lumio device used for domiciliary eye examination

Eye Care Beyond The Chair

Domiciliary: Bringing Eye Care Home

Outreach in Underserved Communities

  • Two clip-in fluorescein filters for enhanced dye examinations
  • Protective travel case to keep your Lumio secure
  • Instruction manual for effortless use
  • CR2032 Replaceable Battery (installed) so you’re ready to go immediately
  • Lanyard- always by your side

Lumio portable eye exam device by Aston Vision Sciences displaying dual white and blue LED lighting, clip-in fluorescein filter, and ergonomic design

 Lens26 Dioptre
 Magnification

3.5X to 7.5x between 30 mm and 36 mm working distance

 Illumination

White LED for general anterior segment,

Blue LED for Fluorescein Examination

 Battery

Duracell/ Procell CR2032 3V, Lithium Coin, replaceable

Approx. Battery Life

180 hours on low brightness,

100 hours on medium brightness,

55 hours on high brightness

 Weight27 Grams
 Typical Light Intensity

Blue LED: 630 mcd, Medium Brightness

White LED: 2,500 mcd, Medium Brightness

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