Statistics over slitlamped eyes

Here you can see how many of the dogs born every year that have been slitlamped. All dogs born in or imported to Sweden are included in the tabel. Every slitlamped dog is just represented by it's latest slitlampe date. All slitlamped dogs until Hundsport Special 2/2000 are included.
Usually PRA is not discovered by tollers before the age of 4 years. Most dogs that have been free from PRA at the age of 4-5 year, are also free later one. But there are some dogs where PRA has been discovered much later. Because of that have I in table 1 put the dogs in diffeent categories, all slitlamped tollers, the one's slitlamped at the age of 4 years or later and the one's slitlamped at the age of 7 or later.

Number of slitlamped tollers, imports and born in Sweden

Tabel 1. Shows how many procent of the dogs born every year, that are slitlamped.
Figures for the total amount, at 4 years or later and 7 years or later are given.

Born Number % slitlamped % slitlamped at % slitlamped at

year totaly 4 years or later 7 years or later

1982 2 100 100 100

1983 4 100 100 50

1984 8 100 75 12

1985 19 74 21 10

1986 35 63 40 14

1987 93 48 22 4

1988 107 40 20 6

1989 180 41 17 6

1990 274 36 19 5

1991 233 36 21 6

1992 249 37 20 6

1993 197 31 14 -

1994 295 29 15 -

1995 327 29 9 -

1996 286 21 1 -

1997 304 24 - -

1998 285 8 - -

1999 300 1 - -

Tabel 2. Shows the number of dogs born every year, that are slitlamped.

Born No. 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 % slitl.

1982 2 - - - 1 - - 1 - - - - - - - 100

1983 4 2 - 1 - 1 - - - - - - - - - 100

1984 8 2 1 4 - - - 1 - - - - - - - 100

1985 19 9 1 - 2 - 1 - 1 - - - - - - 74

1986 35 4 2 2 1 4 4 2 - - 2 - 1 - - 63

1987 93 - 7 13 4 4 7 6 3 - 1 - - - - 48

1988 107 - - 11 10 1 5 6 4 1 3 1 1 - - 40

1989 180 - - 1 12 14 15 6 9 6 3 6 1 - - 41

1990 274 - - - - 14 25 8 16 11 9 3 8 4 - 36

1991 233 - - - - 1 10 16 8 16 11 9 5 8 - 36

1992 249 - - - - - 1 14 19 7 18 8 9 13 2 37

1993 197 - - - - - - - 9 17 8 8 12 8 - 31

1994 295 - - - - - - - - 12 14 16 22 20 2 29

1995 327 - - - - - - - - - 21 21 24 24 5 29

1996 286 - - - - - - - - - - 11 24 23 3 21

1997 304 - - - - - - - - - - - 23 39 10 24

1998 285 - - - - - - - - - - - - 17 6 8

1999 300 - - - - - - - - - - - - - 3 1

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Helen Häggström
agrosofen@netscape.net
Changed 16-06-2002
http://hem.passagen.se/agrosofen

Born	Number	% slitlamped	% slitlamped at	% slitlamped at
year		totaly	4 years or later	7 years or later
1982	2	100	100	100
1983	4	100	100	50
1984	8	100	75	12
1985	19	74	21	10
1986	35	63	40	14
1987	93	48	22	4
1988	107	40	20	6
1989	180	41	17	6
1990	274	36	19	5
1991	233	36	21	6
1992	249	37	20	6
1993	197	31	14	-
1994	295	29	15	-
1995	327	29	9	-
1996	286	21	1	-
1997	304	24	-	-
1998	285	8	-	-
1999	300	1	-	-