XII. Practical Tips

To simplify the calculation step –

Keep the “Correction Factor lens" in the trial frame
before starting Retinoscopy.
After reaching the point of reversal you remove this lens.
The power of the remaining lens is the measure of refraction.
No need of correction for the Observer factor and cycloplegic factor.
So you can avoid the confusion of calculation.
(Correction Factor depends on the distance you are from the subject and the cycloplegic used)



To refine your result –

If your assessment is correct you will get the following results--
After reaching the neutral point (end point) in Retinoscopy
(with plane mirror)
you move slightly towards the subject, then you will get
a ‘with movement’
(because the Far Point is now behind the Observer).
If you move slightly away from the subject you will get
an ‘against movement’
(because now the Far Point is between the observer and the subject).