Glasses or contact lenses are used to compensate for the eye's refractive error by bending light rays in a way that complements the eye's specific refractive error. In contrast, LASIK and other forms of refractive surgery are intended to correct the eye's refractive error to reduce the need for other visual aids.
General [edit]. Its average annual temperature is 19.4 Â°C (66.9 Â°F) during the day and 9.7 Â°C (49.5 Â°F) at night. In the coldest month â January, typically the temperature ranges from 5 to 15 Â°C (41 to 59 Â°F) during the day and â2 to 6 Â°C (28 to 43 Â°F) at night.he highest temperature recorded during the day is 40.6 Â°C (105.1 Â°F) on the 10 August 2012. On the August 1933 reported record, the average maximum temperature during the day was 35.5 Â°C (95.9 Â°F). The coldest temperature recorded was â10.1 Â°C (13.8 Â°F) at night on 16 January 1945.
Madrid has a cold semi-arid steppe climate. The temperature typically varies from 33Â°F to 92Â°F over the course of the year, and is rarely below 23Â°F or above 99Â°F. The hot season lasts for 89 days, from June 14 to September 11, with an average daily high temperature above 83Â°F.