Heterochromia iridium, or segmental heterochromia, is different, it occurs when areas, or segments, of the same eye are different colours. Image courtesy of Wikimedia Commons. What causes heterochromia iridis? The pigment melanin is responsible for the colour - or pigmentation - of our eyes. Heterochromia iridis is caused by too much or too little melanin. This can be due to inherited genes or a problem that occurred when the eyes were being formed.
The average cost to paint the interior of a house falls between $1.50 and $3.50 per square foot. If youâre doing the ceilings, walls and trim, the cost per square foot will likely fall between $3 and $4. If there is damage to the walls that needs to be repaired before painting can proceed, youâll pay extra.
Average Paint Prices. Generally, it will take a minimum of two gallons of paint to cover a room. At the highest end, paint will cost anywhere between $30 and $60 per gallon and come in three different finishes: flat, semi-gloss or high-gloss. Flat finishes are the least shiny and are best suited for areas requiring frequent cleaning.