[how much is normal person eyesight is worth limits normally] _ reference is worth – of _ mark fiducial value

Article introduction

Eyesight is very crucial to us, if vision occurrence problem can bring about an eye easily to see thing faintness, it is to see less than waiting for even, and the eyesight limits need of normal person has a test with form, the eyesight index that can check an everybody through the examination of eyesight is different, note more at ordinary timesA pulls love Shanghai to be the same as a city

Fall in love with sea otter phoenix 419 sauna
Meaning protection eyesight, can do ministry activity appropriately a few times to hold etc.

How much is normal person eyesight is worth limits normally

Love Shanghai is the same as a city

Fall in love with the sea

How much is normal person eyesight is worth limits normally?

Standard eyesight contrasts watch

Eyesight watch is designed according to the principle of the perspective. Alleged perspective is the light that gave out at 2 o’clock by the outside, via the included angle that place of the node inside the eye forms. Below normal circumstance, person eye can differentiate the perspective that the least space between formed piece at 2 o’clock is the least perspective, namely a minute of perspective. Eyesight is expressed even if undertake designing for the unit with a minute of perspective.

New old contrast watch

There is formulary and corresponding standard between the degree that wear looking glass and eyesight, because individual difference knot closes clinical practice, summary gives the following form, call Eggers form again.

How much is normal person eyesight is worth limits normally

Eyesight Qu Guang is frame-up (D)

1.2-1.0 0

1.0-0.8 0.25

0.8-0.6 0.50

0.6-0.5 0.75

0.5-0.4 1.00

0.4-0.3 1.25

0.3-0.2 1.50

0.2-0.1 1.75

How much is normal person eyesight is worth limits normally

Function
Shanghai joins friendly community to touching with the city

Forum of Shanghai night net

What place basically checks with eyesight watch is central eyesight, check center of area of retinal yellow spot namely sunken inspect quick degree, can know the initial case that looks a function quickly thereby, the clinical diagnostic cure of cross-eye disease has important sense. Examination1000 beautiful net forum of Shanghai

1000 beautiful nets of Shanghai
General component is eyesight far-sighted force and myopic force two kinds, far-sighted force uses international standard eyesight to express more, this watch differs for 12 size mouth direction of each different ” E ” ; of word place composition is measured from 0.1-1.5(or from 4.0-5.2); every have grade all right, by check person the line of sight wants as parallel as the group of 1, distance eyesight expresses 5 meters, eyesight watch and byLove Shanghai is the same as city forum

Love Shanghai is the same as a city
The distance of scrutator must be secured correctly, the patient is apart from a watch to be 5 meters. When if interior space is insufficient,5 meters grow, answer to place flat looking glass to reflex eyesight watch in 2.5 meters of place. Undertake detecting first cover, monocular from above to below identifies ” E ” word breach direction, until cannot identify till, the record comes down can. Normal vision should be in 1 withA pulls love Shanghai to be the same as a city

Fall in love with sea otter phoenix 419 sauna
On. Be like the person that be checked 0.1 when also cannot seeing, want forward shift, until can see 0.1 till, its eyesight is ” 0.1 × are apart from / 5= eyesight ” if; is in still cannot see inside rice partly 0.1, the person that can make be checked identifies index, measure a hand to move, smooth feeling. By the examination the circumstance records eyesight. Myopic force is multi-purpose ” J ” myopic force watch, same method identifies ” E ” word breach direction, until cannot identify till, close quarters can be adjusted by oneself, normal close vision sees 1 group clear in 30 centimeters of place can, close eyesight examination conduces to Qu Guang frame-up diagnose

About the author

Leave a Reply

Your email address will not be published. Required fields are marked *