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Tomey AL-2000 Operator's Manual
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Tomey AL-2000 Operator's Manual

Biometer & pachymeter
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O O P P E E R R A A T T O O R R M M A A N N U U A A L L
A A L L - - 2 2 0 0 0 0 0 0
B B i i o o m m e e t t e e r r & & P P a a c c h h y y m m e e t t e e r r

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Summary of Contents for Tomey AL-2000

  • Page 1 O O P P E E R R A A T T O O R R M M A A N N U U A A L L A A L L - - 2 2 0 0 0 0 0 0 B B i i o o m m e e t t e e r r &...
  • Page 2 AL-2000 Biometer & Pachymeter W W A A R R N N I I N N G G S S • • R R e e a a d d t t h h i i s s O O p p e e r r a a t t o o r r M M a a n n u u a a l l c c a a r r e e f f u u l l l l y y b b e e f f o o r r e e u u s s i i n n g g t t h h i i s s i i n n s s t t r r u u - - m m e e n n t t f f o o r r p p r r o o p p e e r r a a n n d d s s a a f f e e o o p p e e r r a a t t i i o o n n .
  • Page 3 AL-2000 Biometer & Pachymeter S S Y Y M M B B O O L L S S U U S S E E D D I I N N T T H H I I S S M M A A N N U U A A L L The symbols used in this manual represent the following: •...
  • Page 4 1.2 Unpacking ......................2 1.3 Outline of operation ..................3 1.4 Software version ....................3 2. COMPONENTS ......................5 2.1 Front and right side of AL-2000 ..............5 2.2 Back and left side of AL-2000 .................6 3. SETUP ..........................7 3.1 Safety precautions ...................7 3.2 Preparing for use .....................7 3.2.1 Installation site ..................7...
  • Page 5 AL-2000 Biometer & Pachymeter Deleting individual measurements..........22 4.2.4 Caliper function ..................22 4.2.5 Deleting data..................23 Deleting data for one eye .............23 Deleting data for both eyes ............23 4.2.6 Storing data ..................23 4.2.7 Acceptable waveforms ................24 4.3 IOL Calculation ....................25 4.3.1 Changing to IOL power calculation mode ...........25 From the biometry mode ..............25...
  • Page 6 AL-2000 Biometer & Pachymeter Automatic acquisition in map measurement mode ......41 Automatic acquisition in single measurement mode ....41 Manual measurement in map measurement mode .......42 Manual measurement in single measurement mode ....42 5.2.3 Deletion of measurement data .............43 Partial deletion of data in single measurement mode ....43 Deleting data for one eye ..............43...
  • Page 7 AL-2000 Biometer & Pachymeter d) Receiving data ................74 7.5.4 Sound setup ..................75 7.5.5 Print mode selection ................76 8. MEMORY CARD ......................77 8.1 Memory card specifications................77 8.2 Memory card capacity and maximum number of entries ........77 8.3 Memory card battery..................77 8.3.1 Replacing the battery................77 8.3.2 Battery life ....................77...
  • Page 8 13.2.2 Acoustic output evaluation - Biometer ..........106 13.2.3 Acoustic output evaluation - Pachymeter........107 13.3 Sounds generated by the AL-2000 ..............108 AUTHORIZED TOMEY SERVICE CENTERS ................109 C C O O N N T T E E N N T T S S...
  • Page 9 AL-2000 Biometer & Pachymeter...
  • Page 10 AL-2000 Biometer & Pachymeter 1 1 . . P P R R I I O O R R T T O O U U S S E E • • R R e e a a d d t t h h i i s s O O p p e e r r a a t t o o r r M M a a n n u u a a l l c c a a r r e e f f u u l l l l y y b b e e f f o o r r e e u u s s i i n n g g t t h h e e i i n n s s t t r r u u m m e e n n t t i i n n o o r r d d e e r r t t o o o o p p e e r r a a t t e e i i t t p p r r o o p p e e r r l l y y a a n n d d s s a a f f e e l l y y .
  • Page 11 1 1 . . 2 2 U U n n p p a a c c k k i i n n g g When unpacking the instrument, make sure that all of the components are present and that none of them are visibly damaged. If any items are missing or damaged, contact your Tomey representative.
  • Page 12 1 1 . . 3 3 O O u u t t l l i i n n e e o o f f O O p p e e r r a a t t i i o o n n The AL-2000 is an ultrasound instrument designed for measuring the axial length of the eye and the thickness of the cornea for medical ophthalmic use.
  • Page 13 AL-2000 Biometer & Pachymeter...
  • Page 14 AL-2000 Biometer & Pachymeter 2 2 . . C C O O M M P P O O N N E E N N T T S S 2 2 . . 1 1 F F r r o o n n t t a a n n d d r r i i g g h h t t s s i i d d e e o o f f A A L L - - 2 2 0 0 0 0 0 0...
  • Page 15 AL-2000 Biometer & Pachymeter 2 2 . . 2 2 B B a a c c k k a a n n d d l l e e f f t t s s i i d d e e o o f f A A L L - - 2 2 0 0 0 0 0 0...
  • Page 16 AL-2000 Biometer & Pachymeter 3 3 . . S S E E T T U U P P 3 3 . . 1 1 S S a a f f e e t t y y p p r r e e c c a a u u t t i i o o n n s s •...
  • Page 17 Plug the power cord connector (1) into the terminal (2) on the back of the AL-2000 3 3 . . 2 2 P P r r e e p p a a r r i i n n g g f f o o r r U U s s e e...
  • Page 18 ) ) C C o o n n n n e e c c t t i i n n g g t t h h e e f f o o o o t t s s w w i i t t c c h h 1. Plug the connector (1) for the foot switch to the terminal (2) labeled FOOT SW on the back of the AL-2000. Line up the slot of the connector with the tab on the ter- minal.
  • Page 19 (2) labeled “FIX LIGHT” on the back of the AL-2000. The fixation lamp lights up when the AL-2000 power is turned on. 3 3 . . 2 2 P P r r e e p p a a r r i i n n g g f f o o r r U U s s e e...
  • Page 20 AL-2000 Biometer & Pachymeter 4 4 . . B B I I O O M M E E T T R R Y Y ( ( A A X X I I A A L L L L E E N N G G T T H H M M E E A A S S U U R R E E M M E E N N T T ) ) •...
  • Page 21 AL-2000 Biometer & Pachymeter 4 4 . . 1 1 . . 2 2 D D e e s s c c r r i i p p t t i i o o n n o o f f W W i i n n d d o o w w s s...
  • Page 22 AL-2000 Biometer & Pachymeter b b ) ) M M e e a a s s u u r r e e m m e e n n t t r r e e v v i i e e w w w w i i n n d d o o w w ( ( 1 1 ) )
  • Page 23 AL-2000 Biometer & Pachymeter c c ) ) M M e e a a s s u u r r e e m m e e n n t t r r e e v v i i e e w w w w i i n n d d o o w w ( ( 2 2 ) )
  • Page 24 AL-2000 Biometer & Pachymeter 4 4 . . 1 1 . . 3 3 S S e e t t t t i i n n g g t t h h e e m m e e a a s s u u r r e e m m e e n n t t c c o o n n d d i i t t i i o o n n s s Before measuring axial length, the following measurement conditions should be set: •...
  • Page 25 ) ) S S e e t t t t i i n n g g t t h h e e e e y y e e t t y y p p e e a a n n d d c c o o n n v v e e r r t t e e d d v v e e l l o o c c i i t t y y The AL-2000 can be set to measure the following types of eyes: •...
  • Page 26 AL-2000 Biometer & Pachymeter Range of Converted Velocity (continued) • Aphakic Average axial length velocity: 1,430 m/s - 1,630 m/s • Pseudophakic IOL velocity: 800 m/s - 3,000 m/s Average velocity (BIO): 1,000 m/s - 2,000 m/s Anterior chamber velocity: 1,430 m/s - 1,630 m/s IOL thickness: 0.10 mm - 4.00 mm...
  • Page 27 4 4 . . 1 1 . . 4 4 C C h h e e c c k k i i n n g g t t h h e e p p e e r r f f o o r r m m a a n n c c e e Check the performance of the AL-2000 by using the biometry test piece (found in the box containing the biometry probe).
  • Page 28 AL-2000 Biometer & Pachymeter 4 4 . . 2 2 P P e e r r f f o o r r m m i i n n g g B B i i o o m m e e t t r r y y ( ( A A x x i i a a l l L L e e n n g g t t h h M M e e a a s s u u r r e e m m e e n n t t ) ) 4 4 .
  • Page 29 AL-2000 Biometer & Pachymeter a a ) ) P P r r o o b b e e m m o o d d e e There are two probe modes: 1. Contact mode In Contact mode (fig. 1), the tip of the biome- try probe is applied directly to the surface of the cornea.
  • Page 30 AL-2000 Biometer & Pachymeter 4 4 . . 2 2 . . 3 3 D D a a t t a a r r e e v v i i e e w w a a n n d d s s e e l l e e c c t t i i o o n n f f o o r r I I O O L L c c a a l l c c u u l l a a t t i i o o n n...
  • Page 31 AL-2000 Biometer & Pachymeter c c ) ) D D e e l l e e t t i i n n g g i i n n d d i i v v i i d d u u a a l l m m e e a a s s u u r r e e m m e e n n t t s s 1.
  • Page 32 AL-2000 Biometer & Pachymeter 4. By pressing the F F i i x x key, the caliper can be switched alternativey between the two measurement locations, and the location can be changed using the arrow keys. 5. Touch the M M e e a a s s u u r r e e key to return to the measurement window.
  • Page 33 AL-2000 Biometer & Pachymeter The memory card that came with the AL-2000 can store data from both eyes of 237 patients. The following binocular data will be stored: • Average axial length (Average AXIAL) • Average anterior chamber depth (Average ACD) •...
  • Page 34 AL-2000 Biometer & Pachymeter 4 4 . . 3 3 I I O O L L P P o o w w e e r r C C a a l l c c u u l l a a t t i i o o n n 4 4 .
  • Page 35 AL-2000 Biometer & Pachymeter 4 4 . . 3 3 . . 2 2 D D e e s s c c r r i i p p t t i i o o n n o o f f I I O O L L p p o o w w e e r r c c a a l l c c u u l l a a t t i i o o n n w w i i n n d d o o w w a a ) ) E E n n t t r r y y o o f f d d a a t t a a a a n n d d d d i i s s p p l l a a y y o o f f c c a a l l c c u u l l a a t t i i o o n n r r e e s s u u l l t t s s P P a a t t i i e e n n t t , , P P h h y y s s i i c c i i a a n n , , D D a a t t e e &...
  • Page 36 AL-2000 Biometer & Pachymeter a a ) ) D D i i s s p p l l a a y y o o f f I I O O L L d d a a t t a a l l i i s s t t...
  • Page 37 Therefore, no data entry is required. If axial length measurement has not been performed using the AL-2000, follow these steps to enter axial length: 1. Prepare to enter axial length by touching the A A x x i i a a l l key (1). The databox will be reverse highlighted.
  • Page 38 AL-2000 Biometer & Pachymeter c c ) ) D D e e s s i i r r e e d d p p o o s s t t o o p p e e r r a a t t i i v v e e r r e e f f r r a a c c t t i i o o n n ( ( D D e e s s i i r r e e d d R R e e f f . . ) ) 1.
  • Page 39 AL-2000 Biometer & Pachymeter 4 4 . . 3 3 . . 5 5 I I O O L L p p o o w w e e r r c c a a l l c c u u l l a a t t i i o o n n...
  • Page 40 . . The memory card that came with the AL-2000 can store data from both eyes of 237 patients.
  • Page 41 AL-2000 Biometer & Pachymeter 4 4 . . 3 3 I I O O L L P P o o w w e e r r C C a a l l c c u u l l a a t t i i o o n n...
  • Page 42 AL-2000 Biometer & Pachymeter 5 5 . . P P A A C C H H Y Y M M E E T T R R Y Y ( ( C C O O R R N N E E A A L L T T H H I I C C K K N N E E S S S S M M E E A A S S U U R R E E M M E E N N T T ) ) •...
  • Page 43 AL-2000 Biometer & Pachymeter 5 5 . . 1 1 . . 2 2 D D e e s s c c r r i i p p t t i i o o n n o o f f W W i i n n d d o o w w s s P P a a t t i i e e n n t t , , P P h h y y s s i i c c i i a a n n , , D D a a t t e e &...
  • Page 44 AL-2000 Biometer & Pachymeter b b ) ) S S i i n n g g l l e e m m o o d d e e w w i i n n d d o o w w...
  • Page 45 AL-2000 Biometer & Pachymeter 5 5 . . 1 1 . . 3 3 S S e e t t t t i i n n g g t t h h e e M M e e a a s s u u r r e e m m e e n n t t C C o o n n d d i i t t i i o o n n s s...
  • Page 46 AL-2000 Biometer & Pachymeter c c ) ) S S e e t t t t i i n n g g c c o o n n v v e e r r t t e e d d v v e e l l o o c c i i t t y y a a n n d d b b i i a a s s m m o o d d e e Bias may be applied in the following two ways: •...
  • Page 47 AL-2000 Biometer & Pachymeter d d ) ) S S e e t t t t i i n n g g a a u u t t o o m m a a t t i i c c v v s s . . m m a a n n u u a a l l a a c c q q u u i i s s i i t t i i o o n n There are two data acquisition modes: •...
  • Page 48 AL-2000 Biometer & Pachymeter g g ) ) S S e e t t t t i i n n g g t t h h e e d d a a t t a a d d i i s s p p l l a a y y m m e e t t h h o o d d...
  • Page 49 5 5 . . 1 1 . . 4 4 C C h h e e c c k k i i n n g g t t h h e e p p e e r r f f o o r r m m a a n n c c e e Check the performance of the AL-2000 by using the pachymetry test piece (found in the box containing the pachymetry probe).
  • Page 50 AL-2000 Biometer & Pachymeter 5 5 . . 2 2 . . 2 2 M M e e a a s s u u r r e e m m e e n n t t m m e e t t h h o o d d s s •...
  • Page 51 AL-2000 Biometer & Pachymeter b b ) ) A A u u t t o o m m a a t t i i c c a a c c q q u u i i s s i i t t i i o o n n i i n n s s i i n n g g l l e e m m e e a a s s u u r r e e m m e e n n t t m m o o d d e e 1.
  • Page 52 AL-2000 Biometer & Pachymeter d d ) ) M M a a n n u u a a l l a a c c q q u u i i s s i i t t i i o o n n i i n n s s i i n n g g l l e e m m e e a a s s u u r r e e m m e e n n t t m m o o d d e e 1.
  • Page 53 . . The memory card that came with the AL-2000 can store data from both eyes of 237 patients.
  • Page 54 AL-2000 Biometer & Pachymeter 6 6 . . P P R R I I N N T T I I N N G G 6 6 . . 1 1 I I n n i i t t i i a a t t i i n n g g P P r r i i n n t t i i n n g g...
  • Page 55 AL-2000 Biometer & Pachymeter 6 6 . . 3 3 S S a a m m p p l l e e P P r r i i n n t t o o u u t t s s 6 6 .
  • Page 56 AL-2000 Biometer & Pachymeter 6 6 . . 3 3 . . 2 2 S S a a m m p p l l e e I I O O L L p p o o w w e e r r c c a a l l c c u u l l a a t t i i o o n n p p r r i i n n t t o o u u t t...
  • Page 57 AL-2000 Biometer & Pachymeter 6 6 . . 3 3 . . 3 3 S S a a m m p p l l e e I I O O L L p p o o w w e e r r c c a a l l c c u u l l a a t t i i o o n n p p r r i i n n t t o o u u t t f f o o l l l l o o w w i i n n g g b b i i o o m m e e t t r r y y ( ( S S R R K K / / T T ) )
  • Page 58 AL-2000 Biometer & Pachymeter b b ) ) S S i i m m p p l l e e m m o o d d e e 6 6 . . 3 3 S S a a m m p p l l e e P P r r i i n n t t o o u u t t s s...
  • Page 59 AL-2000 Biometer & Pachymeter 6 6 . . 3 3 . . 4 4 S S a a m m p p l l e e p p r r i i n n t t o o u u t t u u s s i i n n g g p p e e r r s s o o n n a a l l / / c c o o r r r r e e s s p p o o n n d d i i n n g g s s u u r r g g e e o o n n f f a a c c t t o o r r v v a a l l u u e e s s...
  • Page 60 AL-2000 Biometer & Pachymeter 6 6 . . 3 3 . . 5 5 S S a a m m p p l l e e p p a a c c h h y y m m e e t t r r y y p p r r i i n n t t o o u u t t - - m m a a p p m m o o d d e e...
  • Page 61 AL-2000 Biometer & Pachymeter 6 6 . . 3 3 . . 6 6 S S a a m m p p l l e e p p a a c c h h y y m m e e t t r r y y p p r r i i n n t t o o u u t t - - s s i i n n g g l l e e m m o o d d e e...
  • Page 62 AL-2000 Biometer & Pachymeter 7 7 . . U U T T I I L L I I T T I I E E S S 7 7 . . 1 1 A A c c c c e e s s s s i i n n g g t t h h e e U U t t i i l l i i t t y y W W i i n n d d o o w w 7 7 .
  • Page 63 AL-2000 Biometer & Pachymeter 7 7 . . 1 1 . . 2 2 A A c c c c e e s s s s i i n n g g t t h h e e U U t t i i l l i i t t y y w w i i n n d d o o w w f f r r o o m m p p a a c c h h y y m m e e t t r r y y m m o o d d e e 1.
  • Page 64 AL-2000 Biometer & Pachymeter 7 7 . . 2 2 D D e e s s c c r r i i p p t t i i o o n n o o f f U U t t i i l l i i t t y y W W i i n n d d o o w w s s 7 7 .
  • Page 65 AL-2000 Biometer & Pachymeter 7 7 . . 2 2 . . 2 2 U U t t i i l l i i t t y y w w i i n n d d o o w w f f o o r r p p a a c c h h y y m m e e t t r r y y m m o o d d e e...
  • Page 66 AL-2000 Biometer & Pachymeter 7 7 . . 3 3 U U t t i i l l i i t t y y S S e e t t u u p p f f o o r r B B i i o o m m e e t t r r y y a a n n d d I I O O L L C C a a l l c c u u l l a a t t i i o o n n 7 7 .
  • Page 67 I I O O L L F F o o r r m m u u l l a a key (3) to return to the biometry Utility screen (fig. 1). Please contact your Tomey representative to inquire about loading additional IOL formu- lae.
  • Page 68 AL-2000 Biometer & Pachymeter 7 7 . . 3 3 . . 3 3 P P e e r r s s o o n n a a l l l l e e n n s s c c o o n n s s t t a a n n t t c c a a l l c c u u l l a a t t i i o o n n ( ( p p e e r r s s o o n n a a l l / / c c o o r r r r e e s s p p o o n n d d i i n n g g v v a a l l u u e e ) )
  • Page 69 AL-2000 Biometer & Pachymeter 7 7 . . 3 3 . . 4 4 D D i i s s p p l l a a y y a a n n d d c c o o m m p p i i l l a a t t i i o o n n o o f f p p a a t t i i e e n n t t d d a a t t a a •...
  • Page 70 AL-2000 Biometer & Pachymeter b b ) ) C C o o m m p p i i l l i i n n g g I I O O L L d d a a t t a a To compile a patient’s IOL data:...
  • Page 71 AL-2000 Biometer & Pachymeter c c ) ) D D i i s s p p l l a a y y i i n n g g p p e e r r s s o o n n a a l l l l e e n n s s c c o o n n s s t t a a n n t t s s To display personal lens constant data: 1.
  • Page 72 AL-2000 Biometer & Pachymeter 7 7 . . 3 3 . . 5 5 B B i i o o m m e e t t r r y y / / I I O O L L D D a a t t a a M M a a n n a a g g e e m m e e n n t t •...
  • Page 73 AL-2000 Biometer & Pachymeter 7 7 . . 3 3 . . 6 6 C C o o n n t t a a c c t t / / I I m m m m e e r r s s i i o o n n To select the biometry probe mode: 1.
  • Page 74 AL-2000 Biometer & Pachymeter 7 7 . . 4 4 U U t t i i l l i i t t y y S S e e t t u u p p f f o o r r P P a a c c h h y y m m e e t t r r y y 7 7 .
  • Page 75 AL-2000 Biometer & Pachymeter 7 7 . . 4 4 . . 2 2 D D a a t t a a d d i i s s p p l l a a y y s s e e l l e e c c t t i i o o n n...
  • Page 76 AL-2000 Biometer & Pachymeter 7 7 . . 4 4 . . 3 3 P P a a t t i i e e n n t t d d a a t t a a a a n n d d c c o o r r n n e e a a l l c c r r o o s s s s - - s s e e c c t t i i o o n n d d i i s s p p l l a a y y •...
  • Page 77 AL-2000 Biometer & Pachymeter b b ) ) D D i i s s p p l l a a y y i i n n g g c c r r o o s s s s - - s s e e c c t t i i o o n n a a l l v v i i e e w w o o f f c c o o r r n n e e a a •...
  • Page 78 AL-2000 Biometer & Pachymeter 7 7 . . 5 5 U U t t i i l l i i t t y y S S e e t t u u p p f f o o r r G G e e n n e e r r a a l l I I t t e e m m s s 7 7 .
  • Page 79 AL-2000 Biometer & Pachymeter 7 7 . . 5 5 . . 2 2 D D a a t t e e / / t t i i m m e e s s e e t t u u p p To set the data and time: 1.
  • Page 80 IEC 60601-1 system standard. If in doubt, contact the Tomey technical service department or your local Tomey representative. a a . . P P i i n n p p o o s s i i t t i i o o n n s s o o f f t t h h e e R R S S - - 2 2 3 3 2 2 C C c c o o n n n n e e c c t t i i o o n n t t e e r r m m i i n n a a l l s s...
  • Page 81 AL-2000 Biometer & Pachymeter b b . . S S e e t t t t i i n n g g t t h h e e c c o o m m m m u u n n i i c c a a t t i i o o n n c c o o n n d d i i t t i i o o n n s s To set the communication conditions: 1.
  • Page 82 IOL data or pachymetry data can be transmitted to another AL-2000 or to a com- puter (PC) as follows: 1. Touch the C C O O M M (RS-232C) key on the biome- try Utility screen or the pachymetry Utility screen (see section 7.3.5b, figs.
  • Page 83 . . R R e e c c e e i i v v i i n n g g d d a a t t a a Biometry data may be received from another AL-2000 or from a computer (PC). (Pachymetry data cannot be received.) To receive data: 1.
  • Page 84 AL-2000 Biometer & Pachymeter 7 7 . . 5 5 . . 4 4 S S o o u u n n d d S S e e t t u u p p To adjust the sound: 1. Touch the S S o o u u n n d d S S e e t t key (1) on the biometry Utility screen (fig.
  • Page 85 AL-2000 Biometer & Pachymeter 7 7 . . 5 5 . . 5 5 P P r r i i n n t t M M o o d d e e S S e e t t u u p p The printout options are: •...
  • Page 86 AL-2000 Biometer & Pachymeter 8 8 . . M M E E M M O O R R Y Y C C A A R R D D • • B B i i o o m m e e t t r r y y m m e e a a s s u u r r e e m m e e n n t t s s , , I I O O L L d d a a t t a a a a n n d d p p a a c c h h y y m m e e t t r r y y m m e e a a s s u u r r e e m m e e n n t t s s c c a a n n b b e e s s t t o o r r e e d d o o n n t t h h e e m m e e m m o o r r y y c c a a r r d d .
  • Page 87 AL-2000 Biometer & Pachymeter 8 8 . . 4 4 F F o o r r m m a a t t t t i i n n g g t t h h e e M M e e m m o o r r y y C C a a r r d d T T h h e e m m e e m m o o r r y y c c a a r r d d m m u u s s t t b b e e f f o o r r m m a a t t t t e e d d b b e e f f o o r r e e i i t t s s i i n n i i t t i i a a l l u u s s e e .
  • Page 88 8 8 . . 5 5 . . 4 4 H H a a n n d d l l i i n n g g t t h h e e M M e e m m o o r r y y C C a a r r d d f f i i l l e e s s Files from the AL-2000 Memory Card are read-only files. If you wish to modify the contents of the file, you must make a copy of it and release the read-only attributes of the copy.
  • Page 89 AL-2000 Biometer & Pachymeter 8 8 M M e e m m o o r r y y C C a a r r d d...
  • Page 90 AL-2000 Biometer & Pachymeter 9 9 . . T T E E C C H H N N I I C C A A L L I I N N F F O O R R M M A A T T I I O O N N 9 9 .
  • Page 91 AL-2000 Biometer & Pachymeter 9 9 . . 1 1 . . 2 2 S S R R K K / / T T a a . . E E m m m m e e t t r r o o p p i i c c I I O O L L p p o o w w e e r r ( ( D D ) ) b b .
  • Page 92 AL-2000 Biometer & Pachymeter d d . . P P e e r r s s o o n n a a l l A A - - c c o o n n s s t t a a n n t t...
  • Page 93 AL-2000 Biometer & Pachymeter 9 9 . . 1 1 . . 3 3 H H o o l l l l a a d d a a y y a a . . I I O O L L p p o o w w e e r r ( ( D D ) ) b b .
  • Page 94 AL-2000 Biometer & Pachymeter c c . . P P e e r r s s o o n n a a l l S S F F Where: Refractive index of aqueous and vitreous = 1.336 Refractive index of cornea = 4.0/3.0 Measured axial length (mm) Average corneal radius of curvature (mm) = 337.5/K...
  • Page 95 AL-2000 Biometer & Pachymeter 9 9 . . 1 1 . . 4 4 H H o o f f f f e e r r Q Q a a . . E E m m m m e e t t r r o o p p i i c c I I O O L L p p o o w w e e r r ( ( D D ) ) Where: b b .
  • Page 96 AL-2000 Biometer & Pachymeter c c . . P P e e r r s s o o n n a a l l A A C C D D Where: d d . . P P r r e e d d i i c c t t e e d d p p o o s s t t o o p p e e r r a a t t i i v v e e a a n n t t e e r r i i o o r r c c h h a a m m b b e e r r d d e e p p t t h h ( ( A A C C D D ) ) Where: X = C1 = 0.3(L - 23.5) + (tan K) 2...
  • Page 97 AL-2000 Biometer & Pachymeter 9 9 . . 1 1 . . 5 5 H H a a i i g g i i s s s s t t a a n n d d a a r r d d a a .
  • Page 98 AL-2000 Biometer & Pachymeter c c . . P P e e r r s s o o n n a a l l A A - - c c o o n n s s t t a a n n t t Where: Refractive index of aqueous and vitreous = 1.336...
  • Page 99 AL-2000 Biometer & Pachymeter 9 9 . . 1 1 . . 6 6 H H a a i i g g i i s s o o p p t t i i m m i i z z e e d d a a .
  • Page 100 AL-2000 Biometer & Pachymeter 9 9 . . 2 2 U U l l t t r r a a s s o o u u n n d d V V e e l l o o c c i i t t y y u u s s e e d d i i n n A A x x i i a a l l L L e e n n g g t t h h M M e e a a s s u u r r e e m m e e n n t t 9 9 .
  • Page 101 AL-2000 Biometer & Pachymeter 9 9 . . 3 3 A A x x i i a a l l L L e e n n g g t t h h C C a a l l c c u u l l a a t t i i o o n n i i n n E E y y e e s s w w i i t t h h S S i i l l i i c c o o n n e e O O i i l l 9 9 .
  • Page 102 U U n n p p l l u u g g t t h h e e p p o o w w e e r r c c o o r r d d w w h h e e n n r r e e p p l l a a c c i i n n g g f f u u s s e e s s . . If the AL-2000 does not operate when the power switch...
  • Page 103 AL-2000 Biometer & Pachymeter b b . . C C l l e e a a n n i i n n g g t t h h e e p p r r o o b b e e h h a a n n d d l l e e a a n n d d c c o o r r d d The procedure for cleaning the probe handle and cord is as follows: 1.
  • Page 104 1 1 0 0 . . 4 4 S S t t o o r r a a g g e e When storing the AL-2000, the protective cap should be placed on the clean biometry probe tip and both probes should be placed in the cases provided.
  • Page 105 Tomey, nor to a product whose serial number or batch number is removed, altered or effaced.
  • Page 106 Before presuming that the instrument is malfunctioning, check the following troubleshooting suggestions. If you are still unable to correct the problem, contact your local Tomey repre- sentative.
  • Page 107 AL-2000 Biometer & Pachymeter > > Automatic measurement cannot be performed. • Is the instrument set for manual measurement. (See section 4.1.3e) • Is there any contamination due to the proximity of electromagnetic radiation (e.g., from a motor or high voltage power line)? •...
  • Page 108 AL-2000 Biometer & Pachymeter • Have the pachymetry settings been entered? (See sections 5.1.3 and 7.4) • Is “Out of range” indicated? (See section 5.1.3f) > > Automatic measurement cannot be performed. • Is the instrument set for manual measurement. (See section 5.1.3d) •...
  • Page 109 AL-2000 Biometer & Pachymeter > > Data stored on the memory card cannot be read on a computer. • Was the memory card properly inserted? (See Section 3.2.2f) • Is the memory card write protected? (See back of card) • Was the Config.sys file rewritten? (See Section 8.5.1) •...
  • Page 110 To order spare parts and/or optional parts, contact your local Tomey representative or distrib- utor. When ordering, be sure to specify that your order is for the AL-2000. 1 1 2 2 . . 1 1 S S p p a a r r e e p p a a r r t t s s...
  • Page 111 AL-2000 Biometer & Pachymeter...
  • Page 112 AL-2000 Biometer & Pachymeter 1 1 3 3 . . S S P P E E C C I I F F I I C C A A T T I I O O N N S S A A N N D D M M I I S S C C E E L L L L A A N N E E O O U U S S I I N N F F O O R R M M A A T T I I O O N N 1 1 3 3 .
  • Page 113 AL-2000 Biometer & Pachymeter 1 1 3 3 . . 1 1 . . 2 2 P P a a c c h h y y m m e e t t r r y y 150 - 1,500 µm >...
  • Page 114 AL-2000 Biometer & Pachymeter 1 1 3 3 . . 2 2 U U l l t t r r a a s s o o u u n n d d e e n n e e r r g g y y 1 1 3 3 .
  • Page 115 AL-2000 Biometer & Pachymeter z sp Axial distance at which the reported parameter is measured (centimeters) x -6 ,y -6 In plane (azimuthal) and out of plane -6 dB dimensions, respectively, in the x-y plane where z sp is found (centimeters)
  • Page 116 AL-2000 Biometer & Pachymeter d d ) ) C C o o n n c c l l u u s s i i o o n n : : No values exceed the upper limit of the 99% confidence level. From this we conclude that the ultrasound output is safe for human patients.
  • Page 117 AL-2000 Biometer & Pachymeter 1 1 3 3 . . 3 3 S S o o u u n n d d s s g g e e n n e e r r a a t t e e d d b b y y t t h h e e A A L L - - 2 2 0 0 0 0 0 0 The instrument emits monitoring sounds on the following occasions: •...
  • Page 118 AL-2000 Biometer & Pachymeter...