Eye disease in horses – when is referral needed?

the eye will be found to be free of clinically significant abnormalities. However the scope of this examination is to determine whether or not the horse is suitable for the use intended. Sometimes lesions will be found that are of questionable significance without further examination. For example an opacity in the lens may develop further or remain static which could possibly have an impact upon the resale value of the animal. When such issues are encountered it is normal practice to offer referral to a specialist ophthalmologist for a second opinion and more detailed examination to ensure that the most comprehensive advice can be given. 
Of course a second opinion is not always limited to a prepurchase examination veterinary surgeons in practice will occasionally refer unusual cases for evaluation by a specialist to diagnose or to confirm the original diagnosis. 
The decision to refer will be made by your veterinary surgeon once they have evaluated your horse and the problem
All cases are different and situations vary. Some horses can be managed easily at home and some may need to be referred for management reasons alone. For example if the horse is very distressed by treatment or if facilities such as stabling are needed and the owner does not have access. Sometimes in specific cases discussion of the case with a specialist following digital images may be sufficient otherwise they will need to be referred for specialist evaluation and therapy in person. If you have any concerns please speak to your veterinary surgeon who will be able to advise based on your personal circumstances.