Designed for use in performing the MEM Monocular Estimate Method test for determining lag of accommodation. The front of the card also had a cross-cylinder grid and a reduced Snellen chart. The back of the card provides additional reading material of various type sizes. The card is made of a plastic material which is easily cleaned.
Card Size - 4.5 in x 5.5 in.
Card Size - 4.5 in x 5.5 in.
