Glass eyes in IQ-shape are like the CC-eyes, hemispherical with a concave back and a slight elevation of the iris on the top. This refinement of the CC-eye provides an even more realistic impression of the real eye. The hand-painted glass eye is available exclusively with a white sclera, unlike the CC-eye shape the IQ-shape is not universally applicable.
Like the CC-eyes, the IQ-eyes range are hand-pressed and hand-painted, with the colours being baked at high temperatures.
IQ-eyes are only available with a round pupil and are best suited for mammals such as boar, dogs and several feline predators. Originally, the IQ-shape was made for doll eyes and is used for this purpose as well.