Details

Autor(en) / Beteiligte

• Reynolds, Benjamin D.
• Whittaker, Cameron
• Caruso, Kelly
• Annear, Matthew J.
• Hamzianpour, Negar
• Irving, William
• McCarthy, Paul M. G.
• Smith, Jeffrey S.

Titel

An investigation into the development of qualitative tear film disorders in dogs following cryoepilation for distichiasis

Ist Teil von

• Veterinary ophthalmology, 2023-04, Vol.26 (S1), p.168-172

Ort / Verlag

England

Erscheinungsjahr

2023

Quelle

Wiley-Blackwell Journals

Beschreibungen/Notizen

• Objective The aim of this prospective study was to compare tear film quality between dogs who have previously undergone cryoepilation for distichiasis to a reference population. Animals Studied Nine dogs (17 eyes) were recruited after surgery and were compared to a reference population of 21 dogs (42 eyes). Procedures Canine patients who had previously undergone cryoepilation for distichiasis for a minimum of 1 month prior to examination were recruited. A complete ophthalmic examination was performed by an ABVO resident (BDR), with additional tear tests, including tear film interferometry, infra‐red meibography, and a tear film break‐up time (TFBUT) performed. The tear test results were compared to a reference population obtained from client‐owned dogs with no history of ophthalmic complaints, a normal ophthalmic examination performed by an ABVO resident (BDR) and a Schirmer Tear Test‐1 > 15 mm/min. Statistical analysis was performed of the results obtained. Results The treated group was significantly more affected with meibomian gland dropout (MG‐dropout) in 11/17 (64.7%) cases, compared to the reference population of 2/21 (9.5%) (p < .01). The treated group had an odds ratio of 23.8 to develop MG‐dropout compared to the reference population (p < .01). Tear film breakup time (TFBUT) was significantly shorter in the treatment group (5.8 ± 2.6 s) compared to the reference population (10.1 ± 1.1 s) (p < .001). In the treatment group, 12/17 (70.5%) of treated eyes had a TFBUT < 5 s compared to 2/21 (9.5%) of the reference population. Conclusion Cryoepilation for distichaiasis appears to be a risk factor for developing MG‐dropout and qualitative tear film disorders post‐operatively in canines.