It appears (and clearly now!) that I have an optical astigmatism - which is actually a kind of interesting optical aberration. The eye has two different focal points on two planes - horizontal and vertical. Basically, one of those planes doesn't quite cut the mustard so everything appears not quite as sharp as it should.
The crazy thing - I've been living with this my whole life and haven't realised how sharp the world should be! Up to now it hasn't really affected me at all, until I started being aware of the strain after a long day at the bench.
While I don't have to wear them permanently, they certainly do help in the studio, and I must admit I have had a hankering for another accessory.
Would love to get my hands on some of these somewhat slightly impractical but very speccy spectacles...
|Tortoise shell and silver, 1823|
|Indian Sandalwood, 17th century|
And this mirror...