Diagnosis of Cataracts

Near and far visual acuity measured in each eye separately, using eye charts, tables or screens featuring several letters or figures arranged from the largest to the smallest.

Slit-lamp eye examination, this allows the optometrist to view the eye’s structures, including the cornea, lens, vitreous humour, retina and optic nerve, at a much greater scale than normal and while the pupil is dilated.

Once the ophthalmologist has examined the opaque area of the lens, they need to be sure it is the main cause of the patient’s vision loss. Other tests may also be carried out. Those used most often examine the condition of the retina or cornea and help predict what could be achieved by operating on the cataract.

Ocular biometry is another essential test used to determine the power of the intraocular lens that will be implanted in the eye. These tests are usually carried out before the operation, whether during the first visit or a few days or weeks before surgery.