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The Dedicated Ophthalmology Referral Practice |
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October 2002 - Dilly |
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Dilly is a Lancashire Heeler, a breed that has a familial tendency to lens luxation under investigation by us in the BVA/KC Eye Panel. Dilly's owner is one of the active owners keen to collate information from her fellow breeders into this condition. Dilly presented in June 2001, aged 3, with an anterior dislocated lens which required surgery to remove it.
Dilly's right eye with an anterior dislocated lens (where the lens is in the anterior chamber i.e. infront of the iris and the pupil whereas the lens should be behind the pupil). Following surgery Dilly's right eye can be seen with slight blue appearance of the cornea is where the lens was rubbing the inside of the cornea when it was dislocated. Sometimes this is a permanent change.
When one eye dislocates in a Lancahire Heeler, as with any of the terrier breeds that are liable to this condition, we can predict with near certainty that the second eye will dislocate sometime in the following 12 months. The condition requires surgery.
Dilly's left eye showing subluxating lens (not quite so easy to see but there is an aphacic cresent (like a new moon) at the top of the pupil (which has been dilated) with stretched zonular (suspensory) fibres showing). Dilly presented again on 01 October 2002 with a subluxating lens. A prophylactic lens removal using small incision surgery with phacoemulsification was sucessfully performed so that minimal damage occurred with this eye, specifically there was no damage to the cornea. We dont want to wait for the eye to become acute. Once we are able to be certain that the lens will dislocate then planned surgery is carried out. Following removal of the lenses a dog will be able to see clearly from a distance of about a metre and so a good quality of life is possible following recovery from the operation.
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Dilly 48 hours after surgery on her right eye to correct an anterior dislocated lens. |
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Front view of the lens after removal - approx 10mm diameter |
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Side view of the lens - approx 7mm deep |
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