Copy of a Rowland Grating

Grating 1000/mm

Grating 530/mm

Grating 600/mm

Horseshoe Magnet 140 mm, with Yoke

• Grating test kit made up of 10 cards
• For testing visual acuity in infants/small children
• Uses the Preferential Looking technique
• Enables visual acuity to be quantified

• Accurate method for testing visual acuity
• Designed specifically for testing infants
• Uses grating patterns to assess vision
• Consists of eight acuity testing cards

Transmission Grating 300 Lines/mm

Transmission Grating 600 Lines/mm