This is just a quote on an ICAO article refering to Argentina's position. Here is the link too:
http://www.icao.int/ICDB/HTML/English/Representative%20Bodies/Air%20Navigation%20Commission/Working%20Papers%20by%20Year/2004/AN.2004.WP.7982.EN/AN.2004.WP.7982.APPC.EN.HTM
[FONT='Times New Roman', serif]STATES AND INTERNATIONAL ORGANIZATIONS' COMMENTS[/font]
Argentina
Note.— See appropriate partial language version of this AN-WP for original text.
1. It is our opinion that psycho-physiological capacitation can eventually be granted to pilots up to the age of 63, provided that the following conditions are met:[/font]
a) No medical history of chronic, metabolic, cardiovascular and/or neuropsychotic illnesses;[/font]
b) No aviation accidents and/or incidents involving a pilot's human factors in the last five years.[/font]
2. As such, pilots must undergo a bi-annual medical examination that should consist of the following components:[/font]
Complete neuropsychiatric examination, including an electroencephalogram; echo-doppler of the neck vessels; Rey Complex Figure Test
; MSG Test; Weschler Test;[/font]
[FONT=Times New Roman, serif]∙ Clinical examination of the heart, including a graded ergometric test; an echocardiogram; and a rectal exam;[/FONT]
[FONT=Times New Roman, serif]∙ Laboratory: Complete routine analyses including a creatinine test; serum lipid profiling; liver function test; PSA; fecal occult blood test (FOBT); and complete urinalysis;[/FONT]
[FONT=Times New Roman, serif]∙ Ophthalmological examination, including fundoscopy;[/FONT]
[FONT=Times New Roman, serif]∙ Audiometric test [the result of which should be] within normal limits.[/FONT]