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Eye disorders



            Disorders and injuries may affect the structures of the eye or the eyelids,
            or both. All eye problems in a cat need prompt investigation by a vet, as
            even minor disorders can become sight-threatening if left untreated.

                                            allergy, or infection. There may    enlarged, with a widened pupil
                                            be a clear, white, or greenish   and clouded cornea. If not treated
              Signs of a problem            discharge. The cat may blink   promptly, it could cause blindness.
                                            rapidly and rub the eye. A vet may   The vet will prescribe eye drops
              ■ Eyelids fully or partially closed  use eye drops to clear up infection   and tablets to lower the pressure.
              ■ Watery discharge            and relieve inflammation, and fit   In older cats, acute vision loss
              ■ Yellow/green sticky discharge  an Elizabethan collar to prevent   may be due to detachment of
              ■ Red inner linings of eyelids  the cat from rubbing the eye.  the retina. Signs include an
              ■ Cat rubbing eyes             Injury, or debris in the eye, can   enlarged pupil. Gradual vision
              ■ Increased blink rate        cause inflammation of the third   loss may be due to cataracts. These
              ■ Bumping into objects,       eyelid and conjunctiva, or cause a   can be removed surgically, and
     48       misjudging heights (vision loss)  bluing of the cornea at the front of   an artificial lens may be fitted.
              ■ Pupils dilated in bright light  the eye. A vet may use fluorescein
              ■ Swollen eyes or eyelids     dye to show up injury or ulceration.  Other eye disorders
      Your cat’s health  Conjunctivitis and    debris, pain relief, and antibiotics    affects Persian, Siamese, Burmese,
              ■ Third eyelid showing
                                            Treatment includes removal of
                                                                           Corneal sequestrum particularly
                                                                           and Himalayan cats. A dark patch
                                            if there is bacterial infection.
                                                                           of dead tissue forms on the cornea,
                                            Vision loss
            eye injuries
                                                                           causing pain and excess tears. The
            In conjunctivitis there is swelling
                                            (acute) or gradual. One cause of
            and redness of the conjunctiva, the   Loss of vision can be sudden   patch can be surgically removed.
                                                                             Third eyelid, or haws, syndrome
            membrane lining the inner eyelids   acute vision loss is glaucoma—a   may result in a visible third eyelid
            and covering the front of the eyes.   painful buildup of fluid inside the   on each eye. Possible causes include
            Common causes include irritation,   eyeball. The eyeball may look   viral infection and tapeworms.
                                                  Vet checking a cat’s eyes
                                                  A vet commonly uses an
                                                  ophthalmoscope, an instrument
                                                  with magnifying lenses and a light,
                                                  to examine the interior of the eye.















                                                                           △  Cat with third eyelid syndrome
                                                                           In this condition, the third eyelid is more visible
                                                                           at the inner corners of both eyes. It often
                                                                           affects young cats.





   US_048-049_Eye_and_ear_disorders.indd   48                                                        24/10/2013   14:56
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