Pilotenausbildung "Human Performance - Eye"

What should a pilot do to keep his night vision (scotopic vision)?

Why should a pilot turn his attention to the instruments when approaching on a snowed up, foggy or cloudy winterday? Because

Illuminated anti-collision lights in IMC

A shining light is fading out (i. e. when flying into fog, dust or haze). What kind of sensation could the pilot get?

To prevent the "autokinetic phenomena", the following can be done:

Autokinesis is

A pilot is used to land on small and narrow runways only. Approaching a larger and wider runway can lead to :

The impression of an apparent movement of light when stared at for a relatively long period of time in the dark is called

The time for dark adaptation is

Which problem may occur, when flying in an environment of low contrast (fog, snow, darkness, haze)?

Under these conditions it is:

A pilot approaching an upslope runway

The area in front of a threshold descends towards the threshold.

Possible danger is:

Sunglasses with variable filtration (phototrope glasses)

What misjudgement may occur if an airplane is flying into fog, snow or haze?

Depth perception when objects are close (< 1 m) is achieved through

Adaptation is

The time required for complete adaptation is

The requirement of good sunglasses is to

Why does a deficiency in vitamin A cause night-blindness?

Scanning at night should be performed by:

Approaches at night without visual references on the ground and no landing aids (e.g. VASIS) can make the pilot believe of beeing

A pilot is used to land on wide runways only. When approaching a smaller and/or narrower runway, the pilot may feel he is at a

Flickering light when reflected from spinning rotor blades

A pilot approaching a runway which is narrower than normal may feel he is at a greater height than he actually is. To compensate he may fly a

What impression do you have when outside references are fading away (e.g. fog, darkness, snow and vapor)?

Hypoxia will effect night vision

The effect of hypoxia to vision

What does not impair the function of the photosensitive cells?

The fovea centralis is

The retina of the eye

What should a pilot do if he has no information about the dimensions of the runway and the condition of the terrain underneath the approach? He should

Hypoxia effects visual performance.

A pilot may:

When flying at night the first sense to be affected by a slight degree of hypoxia is the

The part(s) of the eye responsible for night vision

The fovea

When the optical image forms in front of the retina; we are talking about

During flight in IMC, the most reliable sense which should be used to overcome illusions is the:

In the absence of external reference points, the sensation that the vehicle in which you sitting is moving when it is in fact the vehicle directly alongside which is moving is called :

The retina allows for the acquisition of colours as a result of the:

The phenomenon of accommodation, which enables a clear image to be obtained, is accomplished by which of the following ?