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Panic attacks can cause heavy-headedness as well. Medical conditions like anxiety causes heavy-headedness too. [5] A sinus infection can cause facial pressure and pain, as well as nasal congestion and headaches, which are also known as heavy-headedness. [citation needed] New users to specific drugs can cause heavy-headedness.
If you're a glasses-wearer, you're familiar with the incompatibility of masks and spectacles. It comes down to one word, of course: fog. This problem is more than just an annoyance — foggy ...
At each administration of an eye drop containing benzalkonium chloride, its detergent effect disrupts the lipid layer of the tear film. This cannot be regenerated and can no longer protect the aqueous layer of the tear film, which evaporates easily. In these circumstances, the cornea is exposed and eye dryness occurs.
Glass disease is caused by an inherent fault in the chemical composition of the original glass formula. [3] Glass contains three types of components: network formers establish basic structure, network stabilizers make glass strong and water resistant, and flux lowers the melting point at which the glass can be formed. [5]
Clouding of consciousness, also called brain fog or mental fog, [1] [2] occurs when a person is slightly less wakeful or aware than normal. [3] They are less aware of time and their surroundings, and find it difficult to pay attention. [3] People describe this subjective sensation as their mind being "foggy". [4]
Illusory palinopsia is often worse with high stimulus intensity and contrast ratio in a dark adapted state.Multiple types of illusory palinopsia often co-exist in a patient and occur with other diffuse, persistent illusory symptoms such as halos around objects, dysmetropsia (micropsia, macropsia, pelopsia, or teleopsia), Alice in Wonderland Syndrome, visual snow, and oscillopsia.
Astigmatism causes difficulties in seeing fine detail. Astigmatism can be often corrected by glasses with a lens that has different radii of curvature in different planes (a cylindrical lens), contact lenses, or refractive surgery. [5] Astigmatism is quite common. Studies have shown that about one in three people suffers from it.
Most causes of lightheadedness are not serious and either cure themselves quickly or are easily treated. Keeping a sense of balance requires the brain to process a variety of information received from the eyes , the nervous system , and the inner ears .