Common eye conditions and symptoms

CONJUNCTIVITIS is an inflammation of the membrane that covers both the inner lining of the eyelid and the white of the eye. It may be caused by infections, allergies, inadequate tear production or irritation.

KERATOCONJUNCTIVITIS SICCA (DRY EYE) occurs when the tear glands cannot provide a dog’s eyes with enough tears. The most common cause is destruction of the lacrimal gland by cells of the immune system, but viral diseases, drug reactions, allergies or injuries can also lead to this condition which, if chronic, can cause loss of vision. Certain breeds are predisposed.

CORNEAL ULCERATION can result when the cornea’s surface is scratched by a foreign object or is damaged by inadequate tear production or bacterial infection. Very painful, it causes dogs to ‘squint’. Breeds with bulbous eyes and ageing dogs seem to be prone to this problem.

EPIPHORA If your dog’s eye constantly ‘weeps’, or if the fur around it appears ‘stained’, the normal tear flow may be blocked.

CATARACTS & GLAUCOMA Dogs, just like humans, can have these serious eye diseases. Cataracts cloud the lens inside the eye. They are common in elderly and diabetic dogs.Cataracts cause the most canine blindness. Some breeds inherit this condition.Veterinarians should examine those animals early, as they should not breed. Glaucoma results from too much interior eye pressure.Less fluid drains from the eye, causing this pressure.

A healthy dog’s eyes should be clear, bright and free from dirt, discharge and inflammation

Common symptoms of illness

  • Red or inflamed eyes or inner eyelids
  • Matter ‘stuck’ on the surface or in the
    corners of the eye
  • A cloudy or dull eye surface
  • The ‘third eyelid’ coming across the eye
  • Excessive tearing or unusual discharges
  • Tear-stained fur around the eyes

Tests used to diagnose eye problems

  • Fluorescein stain to identify the presence of corneal ulcers
  • Schirmer Tear Test to determine the level of tear production
  • Ocular pressure to detect glaucoma
  • Ophthalmoscope to see in the eye chamber

How to administer eye drops

  1. You may need to muzzle your dog.
  2. Remove any discharge around the eye with a cotton ball moistened with warm water.
  3. See the instructions on the bottle for dosage. Shake if necessary.
  4. Use one hand to hold the bottle between thumb and index and place the other under your dog’s jaw to support the head.
  5. Tilt the head back and, to prevent blinking, use your free fingers to hold the eyelids open.
  6. Hold the bottle close to the eye, but DON’T touch the eye’s surface.
  7. Squeeze the drops on to the eyeball, then release the head.
  8. Your dog will blink, spreading the medication over the eye’s surface.

How to administer eye ointment

  1. You may need to muzzle your dog.
  2. Remove any discharge around the eye with a cotton ball moistened with warm water.
  3. Check the instructions on the tube for dosage.
  4. Gently pull back upper and lower eyelids.
  5. Holding the tube at a 45° angle to the lower eyelid, squeeze the ointment on to its edge.
    DON’T let the tube touch the eye’s surface.
  6. Release the head. Let your dog blink.
  7. Lightly massage upper and lower eyelids together to spread the medication.

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