Their vision may deteriorate with age, but they are not sight-oriented dogs and endure blindness with few noticeable changes in behavior. Male Lhasa Apsos should ideally be 10.75 inches (27.3 cm) at the withers and weigh about 14 to 18 pounds (6.4 to 8.2 kg). The females are slightly smaller and weigh between 12 to 14 pounds (5.4 to 6.4 kg). The Lhasa Apso is a long-lived breed, with many living in good health into their early 20s. The average age for these dogs is 12–14. There are few health problems specific to the breed. The Gompa Lhasa Apso Preservation Program (GLAPP), a 501(c)3 organization, is a small population genetics management program perpetuating the genetic lineage of the Gompa Lhasa Apso. Not having undergone selection to a written standard, this unique gene pool represents the Lhasa Apso as it developed as a landrace.
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