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Summary Red eye
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Summary of 10 pages for the course Optometry at GCU (red eye notes)
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Acute Anterior Eye PresentationsChemical Injury
Presentation Most common following household DIY/cleaning or Industrial/manual work
Common Causative o Alkali such as
Ammonia compounds
Agents
Sodium Hydroxide
Calcium hydroxide
o Acids such as
Sulphuric
Hydrofluoric
Hydrochoric
Glacial acetic
Citric
Acids tend to cause less damage than alkali due to many corneal proteins bind to acid.
Acids tend not to penetrate deep into eye
Can cause fibril shrinkage
Treatment Evert eye lids to remove any matter
Irrigate
, ASAP for at least 15-30 mins in a serious case on way
Use saline, tap water if saline not available
Refer patient so eye can be irrigated until pH7 and to repair any damage
What to look out for
Be aware of any conjunctival chemosis and hyperaemia
Key signs to look out for is conjunctiva blanching which shows cessation
of blow flow (limbal blanching more than 270 degrees
If corneal epithelial defect
Loss of corneal, limbal and conjunctival epithelium
Blunt Trauma
Aetiology Blow to the eye- deliberate or accidental
Signs Infraorbital nerve anaesthesia (lower lid, cheek, side
of nose, upper lip, teeth)
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