Riester Ri-former Instrucciones Para El Uso página 39

The following apertures can be selected with the aperture hand-wheel:
3. Apertures
Semi-circle, small/medium/large circular aperture, fixation star, slit and
L1 ophthalmoscope
red-free filter.
Semi-circle, small/medium/large circular aperture, fixation star and slit.
L2 ophthalmoscope
Semi-circle, small/medium/large circular aperture, fixation star, slit and
L3 ophthalmoscope
grid.
Aperture
Small circle:
Medium circle: pupils
Semi-circle:
Large circle:
Grid:
Light slit:
Fixation star:
Using the filter wheel, the following filters can be switched for each aper-
4 Filters
ture:
The L1 instrument head is supplied without a filter wheel.
L1 ophthalmoscope
(the red filter is contained in the aperture wheel)
Red-free filter, blue filter and polarisation filter.
L2 ophthalmoscope
Red-free filter, blue filter and polarisation filter.
L3 ophthalmoscope
Red-free filter:
Filter
Polarisation filter:
Blue filter:
For L2 + L3, every filter can be switched to every aperture.
Fast fine adjustment of the examination area to be observed is achieved
5. Focussing device (only with L3)
from various distances by turning the focussing wheel.
ri-scope® retinoscope (skiascope) XL 3,5 V
The ri-scope retinoscope Slit and ri-scope
1. Intended use
®
function
to reduce reflection for small
for normal examination results
for topographic determination of retina changes
to determine differences in level
to ascertain central or eccentric fixation
contrast enhancing to assess fine vascular
function
changes, e.g. retinal bleeding
for precise assessment of tissue colours and to
avoid retinal reflections
for improved recognition of vascular abnormali-
ties or bleeding, for fluorescence ophthalmology
39
retinoscope Spot described
®