Ophthalmology Referrals

  

The Paragon Veterinary Group provides an ophthalmology service at its Newbiggin premises. We have facilities for ocular and intra-ocular surgery and microsurgery, including cataract extraction and artificial lens implantation, and see cases referred from other veterinary practices throughout Cumbria and across the North of England and South of Scotland.  The following photographs show some of the conditions that we treat. 

Face-Lift Surgery

Some dogs such as this Sharpei, and this Sussex Spaniel have such heavily wrinkled faces that they are unable to open their eyes and the upper eyelids roll downwards, rubbing on the cornea.

Face-lifts have been performed to keep the eyes open and to stop the hairs rubbing on the eye.

Corneal surgery

A deep ulcer has formed in this cornea.  The cornea has ulcerated down to the bottom layer and the eye will rupture if the ulcer deepens any more.

A graft of conjunctiva has been stitched into the ulcer to protect the cornea and to fill in the defect.

This graft gradually is incorporated into the surface of the eye

Several weeks later the graft has been trimmed to leave a scar at the site of the ulcer.

Corneal Grafting

This example is of a cornea that has been affected by the loss of the cells lining the inside, causing the cornea to become cloudy and to ulcerate.

A circular blade is used to remove the central section of the cornea.

A corneal graft from a donor animal is then sutured in place.

This example is of a cat's cornea affected by a dark deposit called a "sequestrum"

The affected area of the cornea is carefully dissected off.

A section of cornea is taken from the edge of the same eye and sutured into the defect

Cataract surgery 

A cataract is an opacity of the lens.  We see these regularly in dogs, on their own, or secondary to diabetes.  It is possible to remove a cataract and to replace it with an artificial lens.  The lens in a dog’s eye is larger than in a human eye and a dog’s eye is more sensitive than our own, but with modern operating techniques it is now possible. 

This is a cataract prior to surgery

The cataract is removed by breaking the lens up using a vibrating probe and aspirating the fragments.  Here the initial groove is being cut in the lens.

The lens has been split into quarters which can then be broken up further.

The lens has been removed leaving the surrounding capsule.

 The artificial lens that will be inserted into the eye.  The lens can be folded to enable it to be inserted through a small incision.

    

The lens being introduced into the eye.

The eye with the artificial lens in place 6 weeks post-operatively.

Other Investigative Procedures;-

  • slit lamp bio-microscopy,
  • electronic applanation, 
  • tonometry,
  • fundoscopy,
  • gonioscopy
  • ultrasonography, etc.

Other Surgical Procedures;-

Eyelid surgery:

  • entropion,
  • ectropion,
  • tumour removal,
  • eyelid re-construction,
  • relocation of prolapsed nictitans gland,
  • everted third eyelid cartilage, etc.

Corneal Surgery:

  • conjunctival pedicle grafts,
  • corneoscleral
  • transposition,
  • corneal transplants/xenografts,
  • lamellar keratectomies, etc.

Lens Surgery:

  • lens luxation,
  • intracapsular extraction,
  • cataract extraction by phaco-emulsification, etc

Posterior segment surgery:

  • vitrectomy,
  • retrieval of post-segment foreign bodies,
  • posterior lens luxations, etc.

Gary Lewin our ophthalmologist operating on an eye