Sensory system disease Flashcards
Entropion
Inversion of the upper or lower eyelid
Ectropion
Eversion of the lower eyelid (away from the eyeball)
Distichiasis
Extra row of eyelashes
What clinical signs may be seen with eyelid conditions?
- Blepharospasm (excessive blinking)
- Increased lacrimation
- Ocular discharge
- Third eyelid protrusion
What treatment and nursing care can be done for patients with eyelid conditions?
- Anti-inflammatory eyedrops
- Antibacterial eyedrops
- Surgical correction
What are the possible causes of conjunctivitis?
- Bacterial infection
- Viral infection (herpes)
- Allergies (eg. pollen)
- Foreign body
What diagnostics and clinical signs may be seen with conjunctivitis?
Diagnostics:
- Visual examination
- Corneoconjunctival culture (local anaesthetic on eye, take swab and send off for culture)
Clinical signs:
- Blepharospasm
- Increased lacrimation
- Oedema
- Conjunctival hyperaemia (red conjunctiva)
- Ocular discharge
What nursing care and treatment is done for conjunctivitis?
Nursing care:
- Prevention of self-trauma and interference
- Bathe eyes to remove any discharge
- Apply medication as needed
Treatment:
- Antibiotic eyedrops
- Anti-inflammatory eyedrops
- Antiviral eyedrops
- Antihistamine eyedrops
- Surgical correction of eyelid deformities
What is Keratoconjunctivitis sicca (KCS)?
Dry eye due to a reduction in aqueous tear production (A.K.A dry eye)
What clinical signs may be present for KCS/dry eye?
- Vascularisation (creates blood vessels and move to eye, impairing vision)
- Ulceration
- Opacity of the cornea
- Recurrent conjunctivitis
- Mucoid or mucopurulent discharge on and around the surface of the eye
What are the diagnostics, treatments and nursing care implications for KCS/dry eye?
Diagnostics:
-Schirmer tear test
Treatment & nursing care:
- Tear substitutes
- Antibiotic eyedrops if infected
- Anti-inflammatory eyedrops
- Good ocular hygiene
What is the normal reading in a schemer tear test?
15-25mm/min
What is a corneal ulceration?
- Wound/abrasion on the corneal surface
- Common condition which varies in severity
What are the causes of corneal ulcerations?
- Eyelash/eyelid disorders
- Foreign body
- Trauma
- KCS/dry eye
- Infection
- Direct trauma (eg. hibiscrub)
What clinical signs may be seen with corneal ulceration?
- Ocular pain
- Ocular discharge
- Blepharospasm
- Increased lacrimation