Lynne Sandmeyer

Dr. Lynne Sandmeyer, a WCVM graduate, completed her Doctor of Veterinary Science (ophthalmology) degree at the University of Guelph. Dr. Sandmeyer is the Graduate Chair for the Department of Small Animal Clinical Sciences.

Dr. Sandmeyer is part of the WCVM's very successful veterinary ophthalmology program. This includes clinical service in the WCVM Veterinary Medical Centre's Small Animal and Large Animal Clinics, graduate and undergraduate teaching, and research. 

Dr. Sandmeyer is assistant director of the WCVM Small Animal Clinic.

• DVM, Western College of Veterinary Medicine, University of Saskatchewan
• DVSc., Ontario Veterinary College, University of Guelph
• Diplomate, American College of Veterinary Ophthalmologists (ACVO)

Dr. Sandmeyer has research interest in a variety of topics in veterinary ophthalmology. A primary focus has been congenital stationary night blindness (CSNB) and equine recurrent uveitis (ERU) in the Appaloosa, Knabstrupper and Pony of the America horse breeds. Other interests include hereditary and acquired ocular diseases in the dog, infectious conjunctivitis in cats, and ocular pathology.  Current research interests include the use of optical coherence tomography in the diagnosis of retinal disease in veterinary species.

• Bauer, B.S., Leis, M.L., Sandmeyer, L.S.  2020.  Diagnostic Ophthalmology.  Canadian Veterinary Journal, 61(3): 321-322. 

• Levitt, S., Osinchuk, S., Sandmeyer, L.  2020.  Diagnostic Ophthalmology.  Canadian Veterinary Journal, 61(9): 1007-1008.

• Levitt, S., Osinchuk, S., Sandmeyer, L.  2020.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 61(7): 789-791.          

• Levitt, S., Osinchuk, S.C., Bauer, B., Sandmeyer, L.S.  2020.  Bacterial isolates of indolent ulcers in 43 dogs.  Veterinary Ophthalmology, 23(6): 1009-1013.  https://www.doi.org/10.1111/vop.12842

• Osinchuk, S.C., Salpeter, E.M., Lavallee, G., Leis, M.L., Sandmeyer, L.S.  2020.  Effect of intracameral epinephrine on heart rate, post-operative ocular hypertension, and long-term outcome following canine phacoemulsification.  Veterinary Ophthalmology, 23(5): 872-878.  https://www.doi.org/10.1111/vop.12812

• Osinchuk, S.C., Sandmeyer, L.S., Grahn, B.H.  2020.  In vivo imaging comparison of unilateral circular retinal plaques in retriever dogs to dysplasia and detachment in the English Springer Spaniel.  Veterinary Ophthalmology, 23(6): 957-963.  https://www.doi.org/10.1111/vop.12828

• Rockwell, H., Mack, M., Famula, T., Sandmeyer, L., Bauer, B., Dwyer, A., Lassaline, M., Beeson, S., Archer, S., McCue, M., Bellone, R.R.  2020.  Genetic investigation of equine recurrent uveitis in Appaloosa horses.  Animal Genetics, 51(1): 111-116.  https://www.doi.org/10.1111/age.12883

• Sandmeyer, L.S., Kingsley, N.B., Walder, C., Archer, S., Leis, M.L., Bellone, R.R., Bauer, B.S.  2020.  Risk factors for equine recurrent uveitis in a population of Appaloosa horses in western Canada.  Veterinary Ophthalmology, 23(3): 515-525.  https://www.doi.org/10.1111/vop.12749

• Sandmeyer, L.S., Leis, M., Osinchuk, S.  2020.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 61(1): 89-90.

• Sandmeyer, L.S., Leis, M., Osinchuk, S.  2020.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 61(11): 1215-1216.

• Leis, M.L., Sandmeyer, L.S.  2019.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 60(1): 95-96.

• Osinchuk, S.C., Leis, M.L., Salpeter, E.M., Sandmeyer, L.S., Grahn, B.H.  2019.  Evaluation of retinal morphology of canine sudden acquired retinal degeneration syndrome using optical coherence tomography and fluorescein angiography.  Veterinary Ophthalmology, 22(4): 398-406.  https://www.doi.org/10.1111/vop.12602

• Sandmeyer, L.S., Leis, M., Bauer, B.  2019.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 60(11): 1233-1234.

• Sandmeyer, L.S., Leis, M., Bauer, B.  2019.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 60(9): 1007-1008.

• Sandmeyer, L.S., Leis, M., Bauer, B.  2019.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 60(3): 319-321.

• Sandmeyer, L.S., Leis, M., Bauer, B.  2019.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 60(5): 539-540.

• Sandmeyer, L.S., Leis, M., Osinchuk, S.  2019.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 60(7): 789-790.

• Holly, V.L., Zwicker, L.A., Starrak, G., Leis, M.L., Bauer, B.S., Osinchuk, S., Sandmeyer, L.S., Grahn, B.H.  2018.  Odontogenic parakeratinized cyst resulting in exophthalmos and palatine, maxillary, and zygomatic bone erosion in a dog.  Veterinary Ophthalmology, 21(5): 539-543.  https://www.doi.org/10.1111/vop.12538

• Leis, M.L., Sandmeyer, L.S.  2018.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 59(9): 1017-1018.

• Leis, M.L., Sandmeyer, L.S.  2018.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 59(11): 1227-1228.

• Leis, M.L., Dodd, M.-M.U., Starrak, G., Vermette, C.J., Gomis, S., Bauer, B.S., Sandmeyer, L.S., Schwean-Lardner, K., Classen, H.L., Grahn, B.H.  2017.  Effect of prolonged photoperiod on ocular tissues of domestic turkeys.  Veterinary Ophthalmology, 20(3): 232-241.  https://www.doi.org/10.1111/vop.12395

• Leis, M.L., Lucyshyn, D., Bauer, B.S., Grahn, B.H., Sandmeyer, L.S.  2017.  Sudden acquired retinal degeneration syndrome in western Canada: 93 cases.  Canadian Veterinary Journal, 58(11): 1195-1199.

• Osinchuk, S., Petrie, L., Leis, M., Schumann, F., Bauer, B., Sandmeyer, L., Madder, K., Buchanan, F., Grahn, B.  2017.  Congenital nuclear cataracts in a Holstein dairy herd.  Canadian Veterinary Journal, 58(5): 488-492.

• Sandmeyer, L.S., Bauer, B.S., Feng, C.X., Grahn, B.H.  2017.  Equine recurrent uveitis in Western Canadian Prairie provinces: A retrospective study (2002-2015).  Canadian Veterinary Journal, 58(7): 717-722.

• Sandmeyer, L.S., Bauer, B.S., Leis, M.L., Grahn, B.H.  2017.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 58(1): 91-93.

• Sandmeyer, L.S., Bauer, B.S., Mohaghegh Poor, S.M., Feng, C.X., Chirino-Trejo, M.  2017.  Alterations in conjunctival bacteria and antimicrobial susceptibility during topical administration of ofloxacin after cataract surgery in dogs.  American Journal of Veterinary Research, 78     2: 207-214.  https://www.doi.org/10.2460/ajvr.78.2.207

• Sandmeyer, L.S., Gagnon, J., Bauer, B.S.  2017.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 58(5): 515-517.

• Sandmeyer, L.S., Leis, M.L., Bauer, B.S.  2017.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 58(3): 307-308.

• Sandmeyer, L.S., Leis, M.L., Bauer, B.S., Grahn, B.H.  2017.  Diagnostic Ophthalmology.  Canadian Veterinary Journal, 58(7): 757-758.

• Bauer, B.S., Grahn, B.H., Sandmeyer, L.S.  2016.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 57(5): 549-550.

• Bauer, B.S., Grahn, B.H., Sandmeyer, L.S.  2016.  Diagnostic ophthalmology.  Canadian Veterinary Journal, 57(7): 789-790.

• Bauer, B.S., Sandmeyer, L.S., Philibert, H., Feng, C.X., Grahn, B.H.  2016.  Chronic glaucoma in dogs: Relationships between histologic lesions and the gonioscopic diagnosis of pectinate ligament dysplasia.  Veterinary Pathology, 53(6): 1197-1203.  https://www.doi.org/10.1177/0300985816642276

• Holly, V.L., Sandmeyer, L.S., Bauer, B.S., Verges, L., Grahn, B.H.  2016.  Golden retriever cystic uveal disease: A longitudinal study of iridociliary cysts, pigmentary uveitis, and pigmentary/cystic glaucoma over a decade in western Canada.  Veterinary Ophthalmology, 19(3): 237-244.  https://www.doi.org/10.1111/vop.12293

• Sandmeyer, L.S., Bauer, B.S., Grahn, B.H.  2016.  Diagnostic Ophthalmology.  Canadian Veterinary Journal, 57(3): 317-319.

• Sandmeyer, L.S., Bauer, B.S., Grahn, B.H.  2016.  Diagnostic Ophthalmology.  Canadian Veterinary Journal, 57(9): 995-997.

• Sandmeyer, L.S., Bauer, B.S., Grahn, B.H.  2016.  Diagnostic Ophthalmology.  Canadian Veterinary Journal, 57(11): 1195-1197.

• Sandmeyer, L.S., Bauer, B.S., Grahn, B.H.  2016.  Diagnostic Ophthalmology.  Canadian Veterinary Journal, 57(1): 95-96.

• Sandmeyer, L.S., Bellone, R.  2016.  Inherited ocular disorders.  Chapter 13 in Gilger, B.C. (ed.), Equine Ophthalmology: Third Edition.  pp.545-566.  https://www.doi.org/10.1002/9781119047919.ch13

• Scott, M.L., John, E.E., Bellone, R.R., Ching, J.C.H., Loewen, M.E., Sandmeyer, L.S., Grahn, B.H., Forsyth, G.W.  2016.  Redundant contribution of a Transient Receptor Potential cation channel Member 1 exon 11 single nucleotide polymorphism to equine congenital stationary night blindness.  BMC Veterinary Research, 12(1): 121.  https://www.doi.org/10.1186/s12917-016-0745-1

• Holly, V.L., Sandmeyer, L.S., Bauer, B.S., Verges, L., Grahn, B.H.  2015.  Golden retriever cystic uveal disease: A longitudinal study of uveal cysts, pigmentary uveitis and pigmentary/cystic glaucoma over a decade in western Canada. Veterinary  Ophthalmology, 19(3): 237-244. https://www.doi.org/10.1111/vop.12293

• Sandmeyer, L.S., Vujanovic, V., Petrie, L., Campbell, J.R., Bauer, B.S., Allen, A.L., Grahn, B.H.  2015.  Optic neuropathy in a herd of beef cattle in Alberta associated with consumption of moldy corn.  Canadian Veterinary Journal, 56(3): 249-256.

• Denk, N., Misra, V., Sandmeyer, L.S., Bauer, B.B., Singh, J., Forsyth, G.W., Grahn, B.H.  2015.  Development of a murine ocular posterior segment explant culture for the study of intravitreous vector delivery. Canadian Journal of Veterinary Research, 79(1): 31-38.

• Bellone, R.R., Holl, H., Setaluri,V., Devi, S., Maddodi, N., Archer, S., Sandmeyer, L., Ludwig, A., Foerster, D., Pruvost, M., Reissmann, M., Bortfeldt, R., Adelson, D., Lim, S.L., Nelson, J., Haase, B., Engensteiner, M., Leeb,T., Forsyth, G., Mienaltowski, M.J., Hofreiter, M., Paijmans, J.L., Gonzalez-Fortes, G., Grahn, B.H., Brooks, S.A.  2013.  Evidence for a retroviral insertion in TRPM1 as the cause of congenital stationary night blindness and leopard complex spotting in the horse.  PLoS ONE, 8(10): e78280.  https://doi.org/10.1371/journal.pone.0078280

• Garcia da Silva, E., Sandmeyer, L.S., Gionfriddo, J.J., Montiani-Ferreira, F.  2013.  Tear production in canine neonates – Evaluation using a modified Schirmer tear test. Veterinary Ophthalmology, 16(3): 175-179.  https://doi.org/10.1111/j.1463-5224.2012.01044.x

• Bauer, B.S., Kerr, M.E., Sandmeyer, L.S., Grahn, B.H.  2013.  Positive immunostaining for feline infectious peritonitis (FIP) in a Sphinx cat with cutaneous lesions and bilateral panuveitis. Veterinary Ophthalmology, 16(s1): 160-163. https://doi.org/10.1111/vop.12044

• Bauer, B.S., Sandmeyer, L.S., Hall, R.H., Grahn, B.H.  2012.  Immunohistochemical evaluation of fibrovascular and cellular pre-iridal membranes in dogs.  Veterinary Ophthalmology, 15(s1): 54-59.  https://doi.org/10.1111/j.1463-5224.2011.00949.x

• Denk, N., Sandmeyer, L.S., Lim, C.C., Bauer, B.S., Grahn, B.H.  2011.  A retrospective study of the clinical, histological and immunohistochemical manifestations of 5 dogs originally diagnosed histologically as necrotizing scleritis. Veterinary Ophthalmology, 15(2): 102-109.  https://doi.org/10.1111/j.1463-5224.2011.00948.x

• Sandmeyer, L.S., Bellone, R.B., Archer, S., Bauer, B.S., Nelson, J., Forsyth, G., Grahn, B.H.  2011.  Congenital stationary night blindness is associated with the leopard complex in the miniature horse. Veterinary Ophthalmology, 15(1): 18-22.  https://doi.org/10.1111/j.1463-5224.2011.00903.x

• Lim, C.C., Bakker, S.C., Waldner,C.L., Sandmeyer, L.S., Grahn, B.H.  2011.  Cataracts in 44 dogs (77 eyes): A comparison of outcomes for no treatment, topical medical management, or phacoemulsification with intraocular lens implantation. Canadian Veterinary Journal, 52(3): 283-288. 

• Sandmeyer, L., Bauer, B.S., Breaux, C.B., Grahn, B.H.  2011.  Congenital nasolacrimal atresia in 4 alpacas. Canadian Veterinary Journal, 52(3): 313-317.

• Bauer, B.S., Forsyth, G.W., Sandmeyer, L.S., Grahn, B.H.  2010.  Mitochondrial transcription factor A (Tfam) gene sequencing and mitochondrial evaluation in inherited retinal dysplasia in miniature schnauzer dogs. Canadian Journal of Veterinary Research, 75(2): 134-140. 

• Bauer, B.S., Forsyth, G.W., Sandmeyer, L.S., Grahn, B.H.  2010.  Relative quantification of white blood cell mitochondrial DNA and assessment of mitochondria by use of transmission electron microscopy in English Springer Spaniels with and without retinal dysplasia. American Journal of Veterinary Research, 71(4): 454-459.  https://doi.org/10.2460/ajvr.71.4.454

• Bellone, R.R., Archer, S., Wade, C.M., Cuka-Lawson, C., Haase, B., Leeb, T., Forsyth, G., Sandmeyer, L.S., Grahn, B.H.  2010.  Association Aanalysis of candidate SNPs in TRPM1 with leopard complex spotting (LP) and congenital stationary night blindness (CSNB).  Animal Genetics, 41(s2): 207. https://doi.org/10.1111/j.1365-2052.2010.02119.x

• Bellone, R.R., Forsyth, G., Leeb, T., Archer, S., Sigurdsson, S., Imsland, F., Mauceli, E., Engensteiner, M., Bailey, E., Sandmeyer, L., Grahn, B., Lindblad-Toh, W.C.  2010.  Fine mapping and mutational analysis of TRPM1, a candidate gene for leopard complex (LP) spotting and congenital stationary night blindness (CSNB) in horses.  Briefings in Functional Genomics, 9(3): 193-207.  https://doi.org/10.1093/bfgp/elq002