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.
3. Air pressure is the pressure exerted by the weight of air above. Air pressure decreases with an. increase in altitude because there is less air above to exert a downward force as one moves away. from Earthâs surface.4. Cold and dry air is more dense and therefore heavier than warm humid air.. Air pressure is the pressure exerted by the weight of air above. Air pressure decreases with an. increase in altitude because there is less air above to exert a downward force as one moves away. from Earthâs surface.