Household Adjustment of Your Glasses
Spectacles and sunglasses Spectacles have become rather stringent and to some degree skilled engineering instruments in recent times. There are closely calculated points of influence and symmetry in the major axes that can either benefit you or counter to you!
The combination of these points of adjustment can make the glasses feel relaxed and relaxed on your face, but it requires all points to be worked together and in a choreographed sequence in order for the operation not to become "Rubik Cube" like.
The first thing to do is to make certain that all points of connection are tight and snugly coupled - so check each screw to guarantee that it is firm. This will ensure that any further adjustments not only work correctly, but also stay in place for a acceptable amount of time. The usual symptom of "having a screw loose" is that the sides of the frame become wobbly and floppy on your face - so that is always a good place to start.
If the glasses are shifting down on your face, it is probable that the sides of the frame are not proportional and one or both need some adjustment. Put the glasses prone on a white cloth or sheet and looking straight down at the spectacles along the side frames, see if they are precisely straight-up and orthogonal to the front frame. If one or both are not then start preparing to troubleshoot.
All frames have some metal running down the axis of them, and it is this that requires to be twisted back into shape - that's one of its functions! The complication is that the metal is normally layered or bounded n plastic or acetate that leans to cracking or separating when bent.
The optimum way to approach this dilemma is to warm up the sides of the frames with a hot air source - a domestic hairdryer works very well - afterwards rectify each side alternatively in small increments until they have attained the regularity of the frame.
In the case of metal frames, the glasses can be made to sit higher or lower on the face by adjusting the nosepads inwards or outwards. Again, take care and do each one alternatively and incrementally so that you can measure the result from each tweak and adjust accordingly. Plastic frames generally do not have nosepads.
If the glasses are sitting on your face comfortably, but are not straight or level on your face, it is likely that one side is bent up or down relative to the other side. To best remedy this, firmly grasp at the hinge - and then gently bend. Be careful however, as considerable force is sometimes required, and this is a natural weak point in spectacles, and so they can break here quite easily. Be firm with positive force rather than quick jerky movements and all should be ok
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