Binocular Mobile Refractometer and Vision Analyzer

The smartest way to detect refractive errors and vision problems

2Win 2850

Extended Range Refraction and Zoom [EZ-App]

The 2WIN measures spherical power in the range of -15D to +15D, being the only mobile, hand-held instrument to provide such extended measurement range.
The 2WIN measurement principle is eccentric photo-retinoscopy. InfraRed (IR) light is projected through the patient pupils and onto the retina. Depending upon the refractive error, the reflected light forms a specific crescent-shaped brightness pattern within the pupil. The 2WIN measures spherical power, cylinder power and axis by interpreting the reflected light crescent pattern and position.


Corneal Reflexes Application [CR-App]

Thanks to the “Analysis of Corneal Reflexes”, the 2WIN can help your daily work by automating the analysis of refraction with a documented information of phorias and tropias (horizontal and vertical). This application provides complete information regarding the position of corneal reflexes.

Dynamic Pupillometry [DP-App]

Automatic measurement of dynamic pupil response to programmable light stimulations enables the detection of subtle pupillary changes, removing subjectivity from the pupillary evaluation.

Automatic measurement of dynamic pupils to programmable light stimulations.

Intermediate Distance Application [66cm-App]

Thanks to the 2WIN application “Intermediate Distance”, it is possible to identify the difficulties in focusing at VDUs Distance and to estimate the power of the additional lens needed on top of the prescription.
The 2WIN measures the patient’s refraction while reading from VDUs, at a distance of 66 cm (2’). In all those cases when reading at such distance proves difficult, the 2WIN calculates the necessary additional power (ADD) to restore the best vision. The application requires the use of an additional lens that is inserted in the central aperture of the 2WIN; the additional add-on lens together with a 66 cm reading chart compose the kit.

Lens Centering on Frames [LC-App]

This feature allows to accurately center spectacle lenses with reference to the actual visual axis of the eye (cornel reflex) for better vision comfort.




Refractive errors – Myopia, hyperopia, astigmatism and other amblyogenic factors.

Sight anomalies that may be related to anisometropia, anisocoria, strabismus, phoria.

Pupil parameters – pupil size, pupil distance and head tilt.

Dynamic pupil response to programmable light stimulations.


Binocular, 1 meter working distance
Dynamic Pupil response
Lens centering on frame
Hand-held, small, light weight
Battery operated (long battery life)
Easy, quick, non-invasive

2WIN for vision: Let’s fight together to improve people’s sight

The World Health Organization reports approximately 285 million people worldwide countries are visually impaired and at risk of vision loss. Together we can do a lot to improve their lives! We can ensure these families and their children a future, giving them the chance to identify and correct refractive errors and strabismus. Together we can give them a chance for a better life!

Screenings performed using 2WIN in Humanitarian Activities

5000 children - Sankara Eye HospitalBangalore, India
1000 children – CBM Italia OnlusEtiopia, Moldavia, Bolivia
150 children - AdapticaRio de Janeiro, Brazil
300 persons - AdapticaLido di Venezia, Italy
1600 children - AdapticaCampinas, Brazil



The smartest way to detect refractive errors and vision problems.

2Win 2829B
Opticians & Optometrists – helps with practice efficiency
Ophthalmologists – working with infants, children and getting fast report for adults
Pediatric Ophthalmologists – can visit infants
Pediatricians – can screen infants and children
Mission trips – enables large scale screening and exams
ERs - checks visual response in trauma
Corporate Clinics – enables workforce screening
Schools – enables mass screenings
Measurement of binocular objective refraction also with glasses or contact lenses.
Refraction of infants and children from 2 months of age, seniors, impaired and non-cooperative patients.
Early detection and documentation of multiple amblyogenic factors.
Objective measurement of sight anomalies that may be related to anisometropia, anisocoria, strabismus, phoria (software optional).
Binocular Refraction
Monocular Refraction
Pupil Distance
Pupil Size
Head Tilt
Direction of Gaze
Extended measurement range
Fully automated
Binocular refraction
Pupil diameter
Dynamic pupilometry
Check of lens correction
Lens centering on spectacle frames
Fully automated and easy to use
Operates at 1 m (3’ 3”) or 66cm (intermediate distance)
Fast measurement
Handheld and light weight
Battery operated
Allows the early detection of refractive errors
Ideal with infants, children and non-cooperative patients
No drops required
Connect to IR printer
Customizable with additional features
Operating mode: binocular/monocular
Refraction Measurement: Automatic
Sphere range: +15, -15 D, step 0.25 D
Cylinder range: +5, -5 D, step 0.25 D
Cylinder axis: 1° – 180°, step 1°
Pupil size: Automatic detection, 4-7 mm, step 0.1 mm
Pupil distance: Automatic detection, 30-120 mm, step 1 mm
Fixation target: Built-in
Acoustic target: Built-in
Working distance: 1 m ± 5 cm
Data Interface: Wi-Fi, USB, microSD card
Printer interface: USB, Infrared (irda)
Power: rechargeable battery
Battery charger: 110-220 Vac, 0.5 A
Size: 165x130x98mm
Display: 3.5’’
Weight: 840 g (30 oz)
Options/Accessories: portable wireless printer, supplementary battery, battery-charger, metal case, Wi-Fi connectivity