Table 1. Characteristics of 9 Beagles.

Dog #	Age (years)	Gender	Nuclear Sclerosis (presence or not)	Nuclear Sclerosis Severity (early, mild, moderate or dense)
1	1.17	F	No
2	1.19	M	No
3	3.19	F/s	No
4	3.19	M/n	No
5	5.93	F/s	No
6	5.93	M/n	No
7	8.88	F/s	Yes	mild
8	10.22	M/n	Yes	mild/moderate
9	13.65	M/n	Yes	dense

F: Female; F/s: Female sprayed; M: Male; M/n: Male/neutered

Nuclear sclerosis presence or not and severity was determined by board certified veterinarian ophthalmologist. The severity degree was classified as: early, mild, moderate, or dense stage.