General Eye Examination: FAQ

An eye examination is a routine medical evaluation to check eye health and diagnose visual disorders. During the examination, intraocular pressure, retinal condition and general eye health are assessed.

An eye test is a series of assessments performed by ophthalmologists. These tests measure visual acuity, colour vision, eye muscle function and eye pressure. In addition, further tests can be performed by the ophthalmologist if necessary.

A colour blindness test is an examination to test whether individuals with visual impairment can perceive colours correctly. This test assesses whether the ability to distinguish colours is deficient.

Refractive errors occur because the eye cannot focus light correctly and are usually diagnosed with simple tests during an eye examination. They may also be suspected from symptoms such as headaches and eye strain.

The general eye examination includes a visual acuity test, intraocular pressure measurement, colour vision test and eye muscle function tests. The ophthalmologist may also perform further tests if necessary.

Refractive errors include visual disorders such as myopia, hyperopia, astigmatism and presbyopia. These defects are caused by the inability of the eye to focus light correctly and can be corrected with various treatment methods.

Colour blindness is a genetic condition and cannot be cured. However, colour discrimination can be achieved by using special glasses and filters.

General eye examination price varies according to the tests to be performed and the examination process. Prices are determined by the ophthalmologist after the examination.

Colour blindness is usually a genetic condition and is congenital. However, it can also develop later due to eye diseases such as cataracts, diabetes or glaucoma, or side effects of medication.

In professions where colour perception is critical, such as piloting, policing, electrical engineering, graphic design and seafaring, colour blindness can be a significant obstacle.

Colour blindness is a permanent condition and there is no definitive cure. However, specially designed glasses or contact lenses can help to perceive colours better.

Colour blindness is usually recognised in childhood. Colour blindness may be suspected if, during education, children are observed to have difficulty distinguishing colours.

Colour blindness is a genetic condition carried by the X chromosome. Since males have only one X chromosome, the condition is more common if there is a carrier gene.

The Amsler Grid test is used to diagnose diseases affecting the visual centre, such as macular degeneration. Defects in the eye are assessed using a simple grid of lines.

A visual field test is performed to assess a person's peripheral vision and losses in the visual field. It is important in diagnosing conditions such as glaucoma and brain tumours.

The Duochrome test is performed to assess colour aberration in the eye. The patient is shown letters on a red and green background and asked on which background the letters look sharper.

Eye tests are used to diagnose myopia, hyperopia, astigmatism, colour blindness, glaucoma, cataracts, macular degeneration, retinitis pigmentosa and brain tumours.

Eye tests usually take 15-30 minutes. However, this time may vary depending on the type of tests to be performed.

Yes, eye tests can be performed at any age. Visual impairments are detected using methods suitable for children.

If you wear contact lenses for the test, you should remove them according to your doctor's instructions. It may also be helpful to rest before the test to relax your eyes.

Yes, refractive errors may be due to genetic predisposition. It is more common in individuals with a family history of myopia, hyperopia or astigmatism.

Myopia is short-sightedness, where distant objects look blurred. Hyperopia is long-sightedness, where the eye focuses light behind the retina: near objects in particular look blurred, and distant objects blur too as the degree increases. Astigmatism causes blurred vision at both near and far distances.

Presbyopia is a decrease in the ability to see at close range as a result of the loss of elasticity of the lens of the eye, which occurs around the age of 40.

Glasses, contact lenses or laser surgery (iLASIK, ReLEx SMILE PRO, PRK/No Touch laser).

Yes, by changing the shape of the cornea, laser surgery corrects the current refractive error permanently; it does not stop the eye from changing later. However, not all patients are suitable for laser surgery; a doctor's assessment is required.

No, glasses and contact lenses do not cure refractive error, they only correct vision. Surgical methods are required to permanently correct the defect.

Laser surgery is usually painless. It is applied with local anaesthetic drops and the patient does not feel any pain during the procedure.

Refractive errors are usually caused by deformities of the eyeball (too long or too short) or irregularities in the curvature of the cornea and lens.

Yes, refractive errors can also occur in children. Children's vision problems can affect their learning and development. Therefore, early diagnosis is important.

It is not possible to completely prevent refractive errors. Glasses, contact lenses and laser correct vision, but they do not stop a refractive error from progressing. Regular eye examinations pick up changes early so that the correction can be updated.

Laser surgery is not suitable for people with insufficient corneal thickness, under a certain age, during pregnancy or with active eye infections.