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.
Depending on which you choose, expect to pay $35-$50 per square metre for a simple pattern and $85-$100 or more for more intricate work. For the driveway in our example above, concrete and stencilling might cost anywhere between a little over $3,000 to as much as $5,000. Coloured concrete might set you back a few hundred dollars more or around $2,300. 2  Spray painting concrete starts at about $20 per square metre. 3  For our 30 square metre driveway, that works out to about $2,600, including the concrete work. 4  Popular exposed aggregate might cost about $3,000 for the same size driveway.