Flat Wall eye charts without backlighting

Flat wall charts from Danish ISOeyes  – without backlighting

If there are good consistent lighting conditions in the clinic room, allowing vision tests to be conducted in a uniform testing environment, regardless of whether the sun is shining through the window or not, then you can now purchase vision charts designed for hanging with nails, pins, or similar, which comply with the new guidelines from the Health Authority. These guidelines dictate the use of a logarithmic scale and the construction of the vision chart layout in accordance with the internationally adopted ISO 8596. 

 

 

ISOeyes primarily supplies vision charts for 3-meter distance testing,

• but custom charts for all measurements between 2.5 and 6 meters can be produced for an additional fee. The delivery time for custom charts is a maximum of 7 days. 

The flat wall charts can be ordered as either single or combo charts.

• The advantage of combo charts is that there is no need to change the chart when testing vision for both children and adults.
• All charts measure 45×45 cm and are printed on durable white washable PVC.

The following flat wall charts are stocked by ISOeyes – other models are made to order.

>> See information and prices for all available variants <<

Recommendations from the Health Authority for the Construction and Reading of Eye Charts:

Measurement Units and Registration: Vision tests on charts must henceforth be readable and recordable using logarithmic values (LogMAR) instead of 6/6 or decimal values.
Requirements for the Physical Design of Vision Charts:

For Children Aged 3-6:

• The chart must be calibrated for vision testing at a 3-meter distance.
• The chart features figures (not filled symbols) or simple letter charts (HOTV or E). 
• Each line contains up to 5 symbols, but exactly 5 symbols is a requirement from the LogMAR 0.5 line (3/6) and below.
• On each line, the distance between symbols  = the symbol height.
• The distance between lines = the height of the symbol on the line above.
• The symbols on the entire chart should form an inverted pyramid with increasingly shorter lines.

For School children: The same requirements as for children aged 3-6.

• However, charts calibrated for vision testing between 3 and 6 meters are permitted.
• The symbols on the charts are letters or numbers.

Read about the new LogMAR thresholds for referring children 

 

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Lighting Conditions Have a Major Impact on Vision Test Results!

If you want to offer children and adults the optimal accurate vision testing environment – then you should choose the LED vision chart from ISOeyes.

The New Vision Chart from ISOEyes

– uses LED light from 72 small prisms, ensuring a completely uniformly illuminated panel, which guarantees a fair vision test at all levels. Moreover, it is extremely energy-efficient!

Here is one of many models to choose from: 3-meter combo chart on a 60×60 cm light panel) 

Click on the image of the chart to view it in a larger size. Note that the chart includes both Fraction (6/6), Decimal, and LogMAR values. This facilitates understanding and the transition to the new measurement units. The red line marks the normal vision level LogMAR 0.0 (the same as 6/6 or Decimal 1.0).

Since you’re changing anyway, choose the best for both children and adults!

In addition to the requirement to use a logarithmic scale, ISO 8596 also focuses on uniform lighting of the vision chart within a brightness spectrum of between 700 and 1300 Lux, measured from the testing distance.
Remaining within this spectrum is not achievable with arbitrary daylight or ceiling lights in the testing room. The light can vary significantly, but is most often below the minimum 700 lux. Likewise with the color temperature, which with sunlight reflection is often too warm (below 3000 kelvin), and too warm light degrades the vision testing environment.

With the new vision chart panel from ISOeyes, you can adjust both the lux level and color temperature to achieve the optimal vision testing environment. Neither of these adjustments can be achieved with the flat wall charts featured on this page.

A Wide Range of Options – Get Precisely the Chart That Suits You and Your Clinic Room

ISOEyes offers energy-efficient LED charts with remote control in 4 sizes, supporting all testing distances between 2.5 meters and 6 meters. Additionally, a wide range of optotypes (symbols on the charts) is offered, ensuring that all testing environments for adults, preschool and schoolchildren, illiterate individuals, and more are supported.
All charts from ISOeyes fully comply with the Health Authority’s recommendations. The charts are CE/MD approved and also meet all requirements of the internationally adopted ISO 8596 standard for the construction of vision charts.