second sight

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sec·ond sight

improved near vision in the aged as a result of increased refractivity of the nucleus of the lens causing myopia.

second sight

1 an improvement in near vision that may develop in aging as a result of increasing refractivity of the lens nucleus related to development of a nuclear sclerotic cataract.
2 an early increase in the index of refraction of the lens, resulting in a decrease in hyperopia and an increase in myopia.
3 clairvoyance, precognition. See also senopia.


(sit) [AS. sihth]
1. The power or faculty of seeing.
2. Range of sight.
3. A thing or view seen. Synonym: vision; visual perception

blind sight

The ability to see that occurs in persons who are blind because of a brain lesion rather than damage to the eye. It is manifested by their being able to reach for and track an object. These individuals apparently do not know they can see.

day sight

Night blindness.

far sight


near sight


night sight

Day blindness.

old sight


second sight


sight, second 

Improvement of near vision in the elderly resulting from increased refraction of the nucleus of the crystalline lens. It often occurs in people with incipient cataract. Syn. gerontopia; senile lenticular myopia.
References in periodicals archive ?
Because of the combined efforts of Miami Lighthouse, Bascom Palmer Eye Institute, Second Sight Medical Products (the manufacturer), and the many hours of vision rehabilitation provided by Miami Lighthouse professionals that were adapted for this new blindness technology, the results for this first Florida-based Argus II recipient were deemed very successful.
At first blush, ManyWorlds and Second Sight might not seem to fit in with the big boys, the DuPonts and the Microsofts of the world, but Kappos says that it's always been the intention of the PAI to bring in companies of all sizes.
This is the moment when the viewer realizes that Second Sight, like MacLean, preserves the voices of the past and the presence of ghosts.
She appears on the Sky Channel show Psychic Interactive and is releasing her first DVD, Second Sight, in January.
Nancy declares herself a Canadian and ignores signs she has inherited her family's second sight -until her brothers serve in World War I and she experiences strange things she can't understand.
As a rule, Pennant did not believe in second sight and, elsewhere in his Tour, scoffed at it as mere superstition.
As the past increasingly intrudes upon the present, the film gradually undermines the subjective nature of William's second sight, so that by the end of the film the family is sharing it.
The Striders (1966), The Relations (1971), and Second Sight (1986) do not look all that trim today, each a perfunctory salute to the passing brigade of its respective decade.
And, of course, like all obvious things, these two are far less obvious on second sight than on first.
In a blog post by the FDA's Malvina Eydelman, Second Sight Medical Products' Orion was highlighted.
The first person to receive the neural implant from developer Second Sight, the 30-year-old is able to 'see' individual phosphenes or spots of light when his visual cortex is stimulated by the device.