Designer Sunglasses - Designer EyeglassesThe combination of these points of adjustment can make the glasses feel comfortable 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 ensure that all points of contact are tight and firmly connected – so check each screw to make certain that it is tight. This will ensure that any further adjustments not only work correctly, but also stay in place for a reasonable amount of time. The usual symptom of “having a screw loose” is that the sides of the frame become loose and floppy on your face – so that is always a good place to start.
If the glasses are slipping down on your face, it is likely that the sides of the frame are not symmetrical and one or both need some adjustment. Place the glasses face down on a white towel or sheet and looking straight down at the lens along the side frames, see if they are directly perpendicular and orthogonal to the front frame. If one or both are not then prepare to adjust.
All frames have some metal running down the centre of them, and it is this that needs to be bent back into shape – that’s one of its purposes ! The difficulty is that the metal is often coated or surrounded n plastic or acetate that is prone to cracking or breaking when bent.
The best way to approach this dilemma is to heat the sides of the frames with a warm air source – a domestic hairdryer works very well – and then adjust each side alternatively in small increments until they have achieved 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.
Each of these needs a different approach, and each has many pricey products that you can go out and buy in your local chemists or pharmacy which work well – but here are some simple and everyday solutions :
For the lens : The most important thing is to be gentle with any chemicals/detergents or rubbing agents. If the glass is just dirty, and not covered in grease from when you adjusted your glasses with the hand that just managed the ingestion of your cheeseburger – then the classic slow but steady breath onto the lens followed swiftly by a gentle massage with a good quality linen or cotton cloth still works well. When you have transferred remnants of your lunch to the lens however, some chemical introduction coupled with temperature takes it to the next level.
For normal glass or plastic lenses, a quick dunk in a pool of warm water with a couple of drops of washing detergent will usually do the trick to break through the grease. Of course if warm water isn’t available, a quick spray with a commercial/domestic window cleaner also does well. Be Careful however if you have an anti-reflection coating on your lenses – which is common on glasses that have been prescribed for night driving – as the surface of these lenses have been treated and washing up liquid or detergents will often smudge the lens even more and just make the situation worse. For this situation, you are better off with an optical spray and a nice clean cloth. The tip here is that it doesn’t have to be a glasses spray from the opticians – any optical spray (for cameras for example) will work just fine.
For the nosepads : The surface of the nosepads are generally quite resistant to dirt and natural oils. They are usually made form a type of plastic or acetate –and so are not prone to reactions with the skin. Dirt can easily get lodged however between the nosepads and their mounts or the frame itself – so a warm soak for a couple of hours overnight will soften the residue – which can then be gently brushed away with an old soft bristle brush or toothbrush.