Eye coniditons Flashcards
Most common cause of conjunctivitis
Viral (upto 80% of acute conjunctivitis) - mainly adenovirus
2nd common cause of conjunctivitis and most common in children
Bacterial
General symptoms of conjunctivitis
Itchy/ gritty feeling discharge Discomfort (not pain) Red/pink eye which can be unilateral or bilateral Blood shot eye
What symptoms are indicative of bacterial cause of conjunctivitis
if purulent discharge + sticky eyes on waking up in the morning
usually starts in one eye and spread to the other
Indicative symptoms of viral cause
Flu-like symptoms such as sore throat, cough
& Clear discharge with possible tender periauricular LN
What would u see in contact lens associated conjunctivitis
Inflammation in the superior conjunctiva especially under the eyelid
Management of suspected infectious conjunctivitis
Self-help measures - clean eyes with warm water and cotton wool if needed
avoid spread as contagious - sharing towels, rubbing of eye, regular hand washing, avoid use of contacts until fully heals
- can consider antibiotic eye drops e.g. chloramphenicol or fusidic acid - but note: tend to make little difference in mild cases (recommended more in severe cases/ those not clearing on there own)
Management of allergic conjunctivitis
Antihistamines eye drops e.g. azelastine
Mast cell stabilizer eyedrops e.g. sodium cromygelate
Others include antihistamine tablets, steroid eyedrops/tablets/injection
Examination in ? conjunctivitis
Eye examination
- signs of inflammation
- vesicles on eyelids (?herpesV)
- visual acuity
- pupils size, symmetry and reaction to light
- LNs
Red flags that require urgent eye assessment
Reduced visual acuity.
Marked eye pain, headache or photophobia— ?serious systemic conditions such as meningitis in a person presenting with photophobia.
Red sticky eye in a neonate (within 30 days of birth – take swabs for)
History of trauma (mechanical, chemical or ultraviolet) or possible foreign body.
Copious rapidly progressive discharge — may indicate gonococcal infection.
Infection with a herpes virus.
Soft contact lens use with corneal symptoms (e.g. photophobia and watering).
Management of neonate (<30 days) with conjunctivitis
Urgent referral to opthalmological assessment (could be as a result of gonorrhea)
Blepharitis
Chronic relapsing-remitting condition caused by inflammation of the eyelid margin
It is usually bilateral and can be anterior (base of eyelashes) or posterior (Meibomian gland)
The associated condition with Blepharitis
- Seborrhoeic dermatitis
- Dry eye syndrome
- Rosacea
Symptoms of Blepharitis
usually intermittent occuring over long periods of time
include:
Burning, itching and/or crusting of the eyelids.
Symptoms are worse in the mornings.
Both eyes are affected.
If left can cause > Stye or Chalazion on upper/lower lid, Loss of eyelashes (madarosis)
Management of blepharitis
Patient information
Advise:
- Chronic with periodic remissions, relapses, and exacerbations are typical
- Self-care measures e.g. Gentle cleaning of the eyelid margins to remove debris using a cotton bud dipped in a cleanser or diluted baby shampoo.
* Eyelid cleaning 2/day then 1/day when symptoms improve (prevents relapse)
* avoid eye make-up
* Warm compress on closed eyelids for 5-10 minutes for 1-2/day
If measures ineffective:
Review and consider referral – 2nd line treatment is topical Abx in anterior (chloramphenicol) + oral Abx in posterior (doxycycline)