Installing a central air conditioner costs on average $2650, although it can cost as much as $15,000. This installation cannot be considered a DIY project, and it is traditional for a homeowner to hire a contractor for the job. Cost breakdown.
If the light blue iris ring you are seeing is at or near the margin between the iris (colored part of your eye) and the sclera (white part) and forms a large ring around that margin it is likely to be a deposit of cholesterol. It does not damaging to the eye and does not interfere with vision.
Most commonly, causes of headache above right eye are located in the eye itself such as irritation, infection, a wound, or an existing eye disease like glaucoma or inflammation of the conjunctiva.  Tenderness of the sinuses and allergies can be very irritating, and may also be a cause for headache or pain in the eye. Below are some possible causes for headache above your right eye: 1. Cluster Headache. Cluster headaches, as the name implies, are extreme, sharp, pricking pain that occur on a common area around the head, which includes above the right eye. They tend to recur several times a day for weeks to months. According to the National Institutes of Health, cluster headaches occur more commonly in men than in women. It is not known as to what causes the headache but it is believed to be connected to ...