Can fever cause loss of vision?

Can fever cause loss of vision?

Pure Health

Fever is a measurement or description of the internal state of the body. It is a body temperature that is higher than normal body temperature (37 C). It results from the response of the immune system when fighting viruses, bacteria, and foreign bodies.

Actually, most of the people in our society do not know the harmful of fever or they do not care. If I will ask any one of them, he will say “I will be fine after 2 days, so I don’t need a doctor. The fever will end your life quickly because it will destroy your mind also your vision by affecting the temperature of the cornea of the eye. The vision loss could be long-term or short-term due to optic neuritis, retinitis, and vascular occlusions. Early recognition and prompt treatment are the keys to managing these eye conditions”. Therefore, I want to advise anyone who has a fever to go to the doctor from the onset of the fever, not after 3 or 4 days or when it exceeds 38C.

Types of fever based on duration:


Duration Disorder


<7 days
  • Malaria
  • Viral
  • Bacterial
Subacute Up to 2 weeks

 Typhoid fever

Chronic > 2 weeks


Causes of fever

  • Dehydration
  • Sunburn
  • Side effect of a medicine Examples (Methyldopa – Phenytoin – Penicillines)
  • Covid-19
  • Alcohol withdrawal
  • Cold and flu

In our pharmacy, when the patient comes with fever symptom and asks for medication. Firstly, we asked them many questions such as age (babies – children – or adults), lung or chest pain, onset of fever and other symptoms related to fever such as if there is cough, vomiting, or nausea. According to these questions, I will recommend medication for them or refer them to the doctor according to their case. Secondly, if their body temperature under than 38C, I will give the best choice of treatment for patients such as:

  • Adol syrup (for children)
  • Adol suppository (for adult and children)
  • Panadol cold and flu (green, day and all in one) for adult
  • Brufen
  • Fludrex (adult)