Marieke 100

It's not uncommon to see a double image of a model's eye

when she poses in myodiscs: a minified eye seen through

the corrective "bowl" and part of the naked eye next to the

lens. No such thing here. The front of the biconcave lens

looks like it's been split into three parts: (L to R) the slightly

positive carrier lens, a middle section with a Rx of -8 and a

mighty strong prism, and finally the corrective "bowl", Rx -29.

The left image of Marieke's right eye is seen through the middle

section with the prism. I had never seen this effect before so it

was tempting to capture it. The middle section is an optical

illusion, created by the difference of the curve in front and at

the back of the lens. The curve at the back side is twice as

strong and as a result, the carrier lens takes more room. The

carrier lens in front is pointing towards the edge, creating the

prism effect. Puzzling but intriguing. Thank you so much,

Marieke, for your essential role in this experiment!