Flap striae are wrinkles in the flap, so they are unique to LASIK and IntraLASIK and cannot occur with flapless surgery. Microstriae are fine wrinkles that tend to occur with treatments for high levels of nearsightedness. Typically, they are not visually significant.
1 So if one concrete slab had to be replaced on an average driveway, the costs could be around $200 to $450. 2  However, if two slabs had to be replaced, it could only cost $50 more. 3  As you can see, the more slabs you add, the less you are going to pay per square foot.4  The average mudjacking job will hover around $600. According to Ask.com, the cost of mudjacking will vary depending on the condition, size, and amount the concrete has fallen. 2  The amount of mud will also make a difference on the cost. 3  Prices start around $300 for an average job.
For example, if a companyâs fixed costs per job are $300, and their variable costs are $5 per square foot, and a job is a 50 square foot sidewalk repair, then the effective total price would be $300 + 50*$5 = $550, or $11 per square foot. job that has very large voids under it would take more material, and therefore cost more per square foot than a job that doesnât take a lot of material. Depending on the material used, the crew structure, etc, the variable costs of mudjacking are usually a few dollars per square foot.