Nidek Medical RT-5100, Руководство оператора

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ADVANCED FEATURES Range of Clear Vision
 Explanation of the Range of Clear Vision screen
(1) Graph for
(2) Le ns type s e le ction buttons
(3) Distance scale
(4) Right/Left indication
(6) [Vision] (7) [Accommodation]
(9) [Subjective value] (10) [Final prescription] (11) [Final prescription*] (12) [
Ǯ
] (13) [ ]
(5) Image for
range of clear vision
range of clear vision
(8) [LM]
(1) Graph for range of clear vision
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1
4
6
7
2
5
The graph for range of clear vision is shown
when each type of lens is used.
The lower portion of the graph is the near point and
the upper portion of the graph is the far point.
The graph for range of clear vision for the selected
lens is shown in blue, green, and yellow. The
graphs for the other types of lens are shown in
gray.
1. Blue portion of the graph ( ):
Clearly visible area using an accommodation of
less than one-half
• The graph of naked eye is difficult to see clearly if the astigmatism is 0.75 D or more,
so indication should be used instead of indication.
• The blue portion in the graph turns red and indication changes to indication
for [Fin] and [Fin*] in the following cases.
࡮
When the eye is myopic and overcorrected
࡮
When the eye is hyperopic and SPH final prescription is a negative value with CYL mode
is - reading
For these cases, the vision can be improved but may impose eye strain. So it is
recommended to change the final prescription to one with the graph turns blue.
2. Green portion of the graph:
Clearly visible area using an accommodation between one-half and two-thirds
161221687130 承認済
Uncontrolled copy when printed.