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.
The summer and winter temperatures are quite different. The weather between the months May and July is very pleasant and warm having an average temperature between 20 and 32 Â°C. At the end of the month July and throughout August the temperature becomes very hot and sometimes it reaches upto 40 Â°C.However, the temperature is tolerable as the humidity remains low.he lowest average temperature stands at 2 ÂºC while the highest average at 9 ÂºC during December and January. Spring. Spring in Madrid comes as the consequent of winter, which brings a more relaxed weather for the tourists. The sun begins to stay for longer time and shine Madrid from more than 7 hours each day.