Intra and extra ocular prosthesis implantation in dogs

Abstract

Overall incidence of eye affections in the present study was recorded as 2.07% out of which 5.96% dogs were affected with incurable, injured or diseased eye conditions. Highest incidence (35.10%) of various eye affections was recorded in Labrador dogs with cataract (21.52%) being the most common eye affection in middle age male dogs. newlineA total of 14 dogs affected with incurable, injured or diseased eyes were selected for the present study. Non-descript (64.29%) male animals in the age group of 0-5 year (57.14%) were maximally affected with incurable, injured or diseased eyes. Traumatic/accidental injury (50.00%) emerged to be the major cause of eye injury. Physiological and haemato-biochemical examination of each animal were estimated before starting the treatment which were within the normal physiological range. These 14 dogs were randomly divided in to two groups each consisting of seven dogs. In group I, evisceration technique was performed by placement of intraocular silicone prosthesis and extraocular prosthetic eye with conformer shell. In group II, evisceration technique was performed by placement of intraocular silicone prosthesis and extraocular prosthetic eye without conformer shell. Ultrasonographic biometry of intra-ocular structures in all the fourteen dogs (Normal healthy eye) was performed for the measurement of ocular structures to determine the size of the intra and extra ocular implant. Tarsorrhaphy was performed additionally in both the groups. Evisceration surgery, intraocular silicon ball implantation, with or without placement of conformer shell and fixation of extraocular prosthetic eye was easily done in all the seven cases of group I and group II, four weeks after evisceration surgery, fornix healed completely and was dry in both the groups. Extraocular prosthetic eye was smoothly fitted under sedation in all the fourteen dogs. newlineFew complications (14.28% dogs) were observed in both groups post operatively. However, only in one dog of group I showed continuous scratching and ocular discharge on 90th post-operative day. Disruption of sutures was observed on 4th post-operative day in one dog of group II. Post-operative medication used in both the groups reduced congestion, pain, inflammation, irritation, lacrimation, discharge and bacterial infection considerably in all the dogs. Hence, it is recommended to use a combination of both prosthesis for a perfect solution to retrieve a normal looking and moving eye after evisceration. newline newline