IntacsÂ® Eye Surgery. The IntacsÂ® eye surgery procedure usually requires only a one hour office visit. A preoperative exam will determine if a patient is able to undergo IntacsÂ® eye surgery as a treatment for myopia or keratoconus.ntacsÂ® Eye Surgery. The IntacsÂ® eye surgery procedure usually requires only a one hour office visit. A preoperative exam will determine if a patient is able to undergo IntacsÂ® eye surgery as a treatment for myopia or keratoconus.
The Summer Factor: Temperature. Temperature also affects density altitude. When you heat the air, the air molecules have more energy. And, when they have more energy, they spread farther apart. (You probably learned this in high school chemistry class...). When the air is warmer than standard, it's less dense and performance decreases.
Factors Affecting Air Quality. The amount and kind of pollutants that are released into the air play a major role in determining the degree of air pollution in a specific area. However, other factors are involved, mainly: 1  topography (terrain), such as mountains and valleys; 2  weather, such as wind, temperature, air turbulence, air pressure, rainfall and cloud cover; and. 3  the physical and chemical properties of pollutants.