Dr. C. LATHADARAPUNENI SRI SOWMYA2023-11-022023-11-022022-05-07DARAPUNENI SRI SOWMYAhttps://krishikosh.egranth.ac.in/handle/1/5810200216The present clinical study was conducted in eleven dogs (14 eyes) presented with the third eyelid gland prolapse to Department of Veterinary Surgery and Radiology at College of Veterinary Science Rajendranagar, Hyderabad. Out of eleven dogs, three dogs had bilateral prolapse of the third eyelid gland. The age of the eleven dogs ranged from 3-7 months. Out of these eleven dogs, seven were female and four were male. Among the eleven dogs, three were Shih Tzus, two were Golden Retrievers, one each of French Bulldog, Lhasa Apso, mixed breed, Rottweiler and Spitz. The body weight of the dogs ranged from 4.5 to 20 kg. Out of eight unilateral cases, right eye was affected in four dogs and left in four dogs. Out of the eleven, six were brachycephalic and five were mesocephalic. The cases were diagnosed by clinical examination, neuro-ophthalmic examination and special diagnostic tests (Schirmer tear test and fluorescein dye test). The symptoms observed in the dogs presented for treatment were presence of cherry-like hypertrophied mass from medial canthi of affected eyes, conjunctivitis, epiphora and ocular discharge. Animals were randomly divided into two groups. In group I (7 dogs- 1 bilateral, 6 unilateral- 8 eyes), the dogs were treated using the modified Morgan’s pocket technique and in group II (4 dogs- 2 bilateral, 2 unilateral- 6 eyes), using the modified orbital rim anchorage technique. Intra-operative observations like technical feasibility, bleeding (conjunctival and cutaneous) and post-operative observations like Schirmer tear test, fluorescein dye test, third eyelid mobility and time taken to regain normal contour were recorded at time intervals on 1st,7th, 14th, 30th days. The post-operative Schirmer tear test values increased in both the groups and almost reached normal by 30th post-operative day. Statistical analysis revealed no significant difference between the two groups but found within the groups. Third eyelid mobility was not affected in any of the dogs of group I but it was restricted in the dogs of group II. In group I, three cases returned to normal by 10th day after surgery whereas five cases by 14th day. In group II, three cases returned to normal by 12th post-operative day and three cases by 14th post-operative day. One case in group I developed a corneal ulcer by 7th post-operative day which later resolved by the end of the observation period. One dog showed recurrence in group I after 45 days of repositioning and one dog in group II after 30 days. Based on present study, it was concluded that both modified Morgan’s pocket technique and modified orbital rim anchorage technique were effective in the treatment of third eyelid gland prolapse in dogs in repositioning the prolapsed gland and in enhancing the tear production. However, the modified Morgan's pocket technique was considered to be superior because of its technical feasibility and unaffected third eyelid mobility.EnglishThesis