4 metre

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Logarithmic Landolt C Chart, 4m
Code: SDT-220-7
This chart is designed for testing at 4 meters and has an acuity range 20/125, 6/38 to 20/10, 6/3 equiv). Two smaller groups 5M to 2M for repetitive testing (20/25, 6/7.5 to 20/10, 6/3 equiv). Measures 23 X 35.5 cm and can be wall mounted or used wi..
£26.00

Logmar 4m Contrast Sensitivity 1.25%
Code: SDT-215-0
Logmar 4m Contrast Sensitivity 1.25%  For testing at 4 Meters (13ft)  To be used with either of the following Light Cabinets:   SDT-392-LSV or  SDT-396-LPV Glossary of terms: What does ETDRS mean? - Cl..
£117.00

Logmar 4m Contrast Sensitivity 10%
Code: SDT-215-3
Logmar 4m Contrast Sensitivity 10%  For testing at 4 Meters.  To be used with either of the following Light Cabinets:   SDT-392-LSV or SDT-396-LPV Glossary of terms: What does ETDRS mean? - Click for more info Logma..
£117.00

Logmar 4m Contrast Sensitivity 2.5%
Code: SDT-215-1
Logmar 4m Contrast Sensitivity 2.5% For testing at 4 Meters (13ft)  To be used with either of the following Light Cabinets:  SDT-392-LSV or  SDT-396-LPV Glossary of terms: What does ETDRS mean? - Click for more ..
£117.00

Logmar 4m Contrast Sensitivity 25%
Code: SDT-215-4
Logmar 4m Contrast Sensitivity 25%  For viewing at 4 Meters (13ft)  To be used with either of the following Light Cabinets: SDT-392-LSV or SDT-396-LPV Glossary of terms: What does ETDRS mean? - Click for more info L..
£117.00

Logmar 4m Contrast Sensitivity 5%
Code: SDT-215-2
Logmar 4m Contrast Sensitivity 5%  For testing at 4 Meters (13ft)  To be uesd with either of the following Light Cabinets: SDT-392-LSV or  SDT-396-LPV Glossary of terms: What does ETDRS mean? - Click for more in..
£117.00

Logmar 4m ETDRS Chart 1 Original
Code: SDT-211-1
Logmar 4m ETDRS Chart 1 Original 4 metre viewing.  Acuity range 40m to 2M. Will fit illuminated cabinets SDT-392-LSV and SDT-396-LPV These Original Charts - Are the only standardised format acceptable in studies sponsored by the America..
£102.00

Logmar 4m ETDRS Chart 1 Revised
Code: SDT-212-1
Logmar 4m ETDRS Chart 1 Revised 4 metre viewing.  Acuity range 40m to 2M. Will fit illuminated cabinets SDT-392-LSV and SDT-396-LPV These revised charts incorporate a slight change in the difficulty score for each of the ten Sloan lette..
£102.00

Logmar 4m ETDRS Chart 2 Original
Code: SDT-211-2
Logmar 4m ETDRS Chart 2 Original 4 metre viewing.  Acuity range 40m to 2M. Will fit illuminated cabinets SDT-392-LSV and SDT-396-LPV These Original Charts - Are the only standardised format acceptable in studies sponsored by the America..
£102.00

Logmar 4m ETDRS Chart 2 Revised
Code: SDT-212-2
Logmar 4m ETDRS Chart 2 Revised 4 metre viewing.  Acuity range 40m to 2M. Will fit illuminated cabinets SDT-392-LSV and SDT-396-LPV These revised charts incorporate a slight change in the difficulty score for each of the ten Sloan lette..
£102.00

Logmar 4m ETDRS Chart 3 Revised
Code: SDT-212-3
Logmar 4m ETDRS Chart 3 Revised 4 metre viewing.  Acuity range 40m to 2M. Will fit illuminated cabinets SDT-392-LSV and SDT-396-LPV These revised charts incorporate a slight change in the difficulty score for each of the ten Sloan lette..
£102.00

Logmar 4m ETDRS Chart R Original
Code: SDT-211-0
Logmar 4m ETDRS Chart R Original 4 metre viewing.  Acuity range 40m to 2M. Will fit illuminated cabinets SDT-392-LSV and SDT-396-LPV These Original Charts - Are the only standardised format acceptable in studies sponsored by the America..
£102.00

Logmar 4m Illiterate "E" Chart
Code: SDT-230-5
Logmar 4m Illiterate "E" Chart.  For testing at 4 Meters (13ft)  To be used with either of the following Light Cabinets:  SDT-392-LSV or SDT-396-LPV Glossary of terms: What does ETDRS mean? - Click for more info Logmar D..
£102.00

Modified ETDRS European LogMar 4m Chart 1
Code: SDT-281-0
To facilitate reliable visual acuity screening for clinical trials and exchange of patient data between doctors, clinics and researchers throughout Europe and beyond, researchers at the University of Crete (Dr. Sotiris Plainis, Prof. Miltiadis Tsilim..
£93.00

Modified ETDRS European LogMar 4m Chart 2
Code: SDT-281-1
To facilitate reliable visual acuity screening for clinical trials and exchange of patient data between doctors, clinics and researchers throughout Europe and beyond, researchers at the University of Crete (Dr. Sotiris Plainis, Prof. Miltiadis Tsilim..
£93.00

Modified ETDRS European LogMar 4m Chart 3
Code: SDT-281-2
To facilitate reliable visual acuity screening for clinical trials and exchange of patient data between doctors, clinics and researchers throughout Europe and beyond, researchers at the University of Crete (Dr. Sotiris Plainis, Prof. Miltiadis Tsilim..
£93.00

Patti Pics 4m
Code: SDT-255-4
Patti Pics 4m for testing at 4m Will fit illuminated cabinets SDT-392-LSV and SDT-396-LPV Glossary of terms: Patti Pics - Click for more info ..
£102.00

Patti Pics 4m Contrast Sensitivity 1.25%
Code: SDT-256-0
Patti Pics 4m Contrast Sensitivity 1.25% Translucent panel for use with illuminated cabinets SDT-392-LSV and SDT-396-LPV Supplied with a soft tipped pointer, record forms and instructions. Size: 62cm x 65cm Glossary of terms: Patti Pics ..
£117.00

Patti Pics 4m Contrast Sensitivity 10%
Code: SDT-256-3
Patti Pics 4m Contrast Sensitivity 10% Translucent panel for use with illuminated cabinets SDT-392-LSV and SDT-396-LPV Supplied with a soft tipped pointer, record forms and instructions. Size: 62cm x 65cm Glossary of terms: Patti Pics - ..
£117.00

Patti Pics 4m Contrast Sensitivity 2.5%
Code: SDT-256-1
Patti Pics 4m Contrast Sensitivity 2.5% Translucent panel for use with illuminated cabinets SDT-392-LSV and SDT-396-LPV Supplied with a soft tipped pointer, record forms and instructions. Size: 62cm x 65cm Glossary of terms: Patti Pics -..
£117.00

Patti Pics 4m Contrast Sensitivity 25%
Code: SDT-256-4
Patti Pics 4m Contrast Sensitivity 25% Translucent panel for use with illuminated cabinets SDT-392-LSV and SDT-396-LPV Supplied with a soft tipped pointer, record forms and instructions. Size: 62cm x 65cm Glossary of terms: Patti Pics - ..
£117.00

Patti Pics 4m Contrast Sensitivity 5%
Code: SDT-256-2
Patti Pics 4m Contrast Sensitivity 5% Translucent panel for use with illuminated cabinets SDT-392-LSV and SDT-396-LPV Supplied with a soft tipped pointer, record forms and instructions. Size: 62cm x 65cm Glossary of terms: Patti Pics - C..
£117.00

Patti Pics, 4m
Code: SDT-255-1
This chart is designed for testing at 4 meters and has an acuity range: 20m to 1.6m (20/100, 6/30 to 20/8, 6/2.4 equiv). Measures 23 X 35.5 cm and can be wall mounted or used with our SDT-399-LSV Illuminated Cabinet.  Five symbol tests ar..
£26.00

PV Numbers Horizontal Acuity Chart, 4m
Code: SDT-270-2
This chart is designed for testing at 4 meters and has an acuity range 10M to 1.6M (20/50, 6/15 to 20/8, 6/24 equiv.) Two smaller groups 5M to 1.6M for repetitive testing (20/25, 6/75 to 20/8, 6/24 equiv). Measures 23 X 35.5 cm and can be wall mount..
£93.00

SLOAN Reversed Optotype Chart, 4m
Code: SDT-210-2R
This chart is designed for testing at 4 Meters and has an acuity range 25M to 2M (20/125, 6/38 to 20/10, 6/3 equiv). Two smaller groups 5M to 2M for repetitive testing (20/25, 6/7.5 to 20/10, 6/3 equiv). Measures 23 X35.5 cm and can be wall mounte..
£26.00