PINHOLE GLASSES SPECTACLES COME WITH INSTRUCTIONS V1
New
1 was available
R40.00
0% off
Shipping
R65.00 Standard shipping applies to orders under R100.00, in most areas in South Africa. R35.00 Standard shipping applies to orders over R100.00. Some areas may attract a surcharge surcharge. This will be calculated at checkout if applicable. Check my rate
The seller has indicated that they will usually have this item
ready to ship within 3 business days.
Shipping time depends on your delivery address.
The most accurate delivery time will be calculated at checkout,
but in general, the following shipping times apply:
Having problem with myopia, hyperopia, or tiredness because of long hours staring at computer?
Pinhole glasses may be your solution!
Pinhole glasses, also known as stenopeic glasses, are eyeglasses with a series of pinhole-sized perforations filling an opaque sheet of plastic in place of each lens. Similar to the workings of a pinhole camera, each perforation allows only very narrow beam of light to enter the eye which reduces the size of the circle of confusion on the retina and increases depth of field. In eyes with refractive error, the result is often a clearer image, akin to that created by corrective glasses, although significantly darker, lower in contrast, and prone to flickering. Pinhole glasses reduce peripheral vision.
