Tag Archives: eye

A system for detecting an accessible bug

We have described each of the operations on the retinal image in terms of what common factors in a large variety of stimuli cause response and what common factors have no effect. What, then, does a particular fiber in the optic nerve measure? We have considered it to be how much there is in a […]

You are green

“As I recovered at home, colour started slowly creeping back into my life, whispering around corners. This was a very perplexing time, for often I only felt I was seeing a colour but was unable to identify it. I would stare endlessly at trees and lamp-posts, desperate to match the colour I believed was there […]

The screen is looking at you in the eyes

Computer vision syndrome (CVS) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time. Some symptoms of CVS include headaches, blurred vision, neck pain, fatigue, eye strain, dry eyes, irritated eyes, double vision, vertigo/dizziness, polyopia, and difficulty refocusing the eyes. In CVS, the screen […]

this third eye extracted from the abdomen

‘I feel a very sincere admiration for all those people who march around Spain and Italy laden with bags, cases, telemeters, extra lenses, pose—meters, thermocolorimeters (“for taking the temperature of colour”) and who, never losing the smallest clasp from their bags, or the tiniest roll of film, advance with great strides into the ‘Leican era’. […]

The blue eyes of the argopecten irradians

Common Name: Bay Scallop, Scientific Name: Argopecten irradians, Specimen #: 27, Size: 2.5 inches acBay Scallop, Scientific Name: Argopecten irradianross (side to side), Notes: specimens ordered from Gulf Specimen Marine Laboratories: (850) 984-5297, gulfspecimen.org, collected near Panacea, Florida, Location: David Liittschwager’s Home Studio: 120 Parnassus Ave #1, San Francisco, CA, 94117 “The mantle of the […]

A vision substitution system

Two illustrations of Bach y Rita’s vision substitution system, in 1969. “Four hundred solenoid stimulators are arranged in a twenty x twenty array built into a dental chair. The stimulators, spaced 12 mm apart, have 1 mm diameter “Teflon” tips which vibrate against the skin of the back (Fig. 1). Their on-off activity can be […]

R-G-B. Peter Campus

If we are to avoid the problem of creating a visual system that will reduce the capacity of the eye, it is necessary to disassociate the video camera from the eye and make it an extension of the room. Peter Campus Video as a Function of Reality, 1974

This divine scanner

In How One Sees, Siegfried Zielinski and Franziska Latell trace the genealogy of vision. Quoting the philosopher Abu Nasr Al-Farabi (870-950), the authors write: Optics teach “according to the true circumstances of what is looked at to find the matter, the quantity, form, position and order and the other things which of the things is […]

How the brain recognizes faces