misd-agin;
Oh I know the difference and why peripheral vision is part of the perceptual requirements - it is being suggested that this is primary and dirty nights where runway lighting height may affect the judgement of height, and I disagree. In Canada our runways are 200ft wide so flying to the US and to the Caribbean (especially on hot days when it was the middle of winter here), we have to be very cognizant of both the runway width, (and the optical illusions created by the narrower pavement) and the "thinner" air - it sometimes made for interesting arrivals. Those runways you mention wider than 200'? If so, how come?