The visual field is the space covered by the vision of the eye when it is static and viewing a fixed point. Typically, the perimeter of the visual field and sensitivity within the different areas of the perimeter are assessed.
What is the width of our visual field?
The width of our horizontal visual field is 200º, whereas the vertical is 130º in normal conditions.
What symptoms can a patient present after undergoing YAG laser treatment?
Patients can notice small floating objects, which are capsular remains in the vitreous space, but after a few days they normally disappear. Photocoagulation with YAG laser is applied to the capsule holding the artificial intraocular lens, which over time becomes opaque, resulting in the patient losing vision. Photocoagulation with YAG laser is painless and quickly achieves visual improvement.
Why does eye pressure increase?
An increase in eye pressure is a result of several factors which can be summarised as mechanisms that prevent intraocular fluid (aqueous humour) from being removed properly through the normal channel. This can be mild and chronic—chronic glaucoma—or sudden, due to other processes. The ophthalmologist has to examine the patient urgently, especially in the event of acute forms.