Delta is located at 41Â°19â²27â³N 92Â°19â²46â³Wï»¿ / ï»¿41.32417Â°N 92.32944Â°Wï»¿ / 41.32417; -92.32944 (41.324112, -92.329481). According to the United States Census Bureau, the city has a total area of 0.93 square miles (2.41 km 2), all of it land.
Iritis (i-RIE-tis) is inflammation that affects your eye's iris, the colored ring surrounding your pupil.The iris is a part of the middle layer of the eye (uvea), so iritis is a type of uveitis, sometimes called anterior uveitis.The cause of iritis is often unknown. Sometimes iritis results from an underlying systemic condition or genetic factor.ritis (i-RIE-tis) is inflammation that affects your eye's iris, the colored ring surrounding your pupil.
When an inflammation affects primarily the iris and ciliary body it is often called iritis. The iris is the part of the eye which is visible in the mirror and gives the eye its color, usually blue or brown.The pupil is the opening in the iris through which light passes.hen an inflammation affects primarily the iris and ciliary body it is often called iritis. The iris is the part of the eye which is visible in the mirror and gives the eye its color, usually blue or brown.