Augenarzten Dörner & Dörner

Early detection and diagnostics

Changes in the optic nerve or retina, as in glaucoma or age-related macular degeneration, are severe eye diseases that often become noticeable at a late stage.

Poor eyesight in children is also difficult to detect, as our youngest patients can’t clearly vocalize their complaints or limitations.

Don’t wait for noticeable limitations! In most cases, the eye is then already severely damaged. If chronic eye diseases are diagnosed early, progression can be slowed down or even stopped. If squinting ( amblyopia ) in children is discovered before the age of 6, with the correct treatment, the chances of a complete recovery are very high.

At our clinic in  Bocholt, we have a broad portfolio of preventive medical check-ups available for all age groups. Please, ask our doctors or nurses which check-up is  best for you!

Thanks to ongoing improvement in diagnostic technology, we can combine the traditional, proven and tested ophthalmological testing with high-technology measurements and AI-based analyses.  Click the link below and have a look at some of our state-of-the-art  diagnostic equipment  available at the clinic.

In general, the earlier an eye disease is diagnosed, the better the chances of a cure. This is why we recommend regular checks performed by specialist ophthalmologist.


“Early detection – the cornerstone for maintaining your vision.”


Glaucoma is still one of the most frequent causes of blindness worldwide. Early detection is essential. Glaucoma goes along with a loss of optic nerve fibers (without any symptoms in early stages) and can be treated by lowering the intraocular pressure.

A good standard for glaucoma diagnostics is the measurement of intraocular pressure, visual field examination and examination of the optic nerve.

When glaucoma has already been established, it is possible to carry out supplementary, extended, preventive examinations and special follow-up checks.

Take a look at some of the technology  and the methods we use to accurately assess your vision.

papilla tomography (HRT)

The optic nerve can be measured and accurately compared with precision by using a laser-based method.


The intraocular pressure can be measured completely contactless by using air blast method

Dynamic applanation tonometry (PASCAL)

The intraocular pressure can be measured within a few seconds depending on the blood pressure. This modern device creates pulse curves of the intraocular pressure just by gently touching the cornea.

GDx - Neurofibers analysis

Using a Nerve Fiber Analyzer (GDx®) we can examine and measure precisely the thickness of the nerve fiber at the retina around the optic nerve.

With this  examination we can determine early detection of glaucoma and control of its progression.

papilla photograph

By taking a colour photograph of the optic nerve we can have a good comparison for further assessment of the disease progression, giving us an in-depth understanding of the disease.

Macular degeneration & other retinal diseases

An important part of our responsibility as your ophthalmologist is the early detection of retinal diseases.

The most common ones, such as age related macular degeneration or changes in the eye due to diabetes mellitus, can sometimes already be seen during standard funduscopy. However, to perform a complete examination of your retina, we have to check your eyes with widened pupils (which we call mydriasis). It is necessary to administer pupil-dilating eye drops, which can give you a blurry vision for up to 4 hours after examination. Please, make sure that you are accompanied because it is not allowed to drive after retina check-up in mydriasis.

Age-related macular degeneration (AMD) presents itself in different stages. The dry form of AMD is currently not curable. For the wet form there is an established and proven method of intravitreal injections, which has shown very good results and has been used for the last two decades.

To ensure that both forms of macula degeneration are detected at an early stage, we use high resolution imaging (SD-OCT) as a reliable follow-up control method. SD-OCT can also be used to detect and observe other retinal diseases such diabetic changes in the retina, inflammatory changes from rheumatic eye diseases or scaring after light-induced trauma.

DRS camera & fundus photography

This diagnostic method allows us to take a photo of the area at back of the eye without dilating the pupil. On the photo, the central and peripheral retinal areas can then be examined straight away and be used for an immediate assessment of a progression.

Optical coherence tomography (SD-OCT)

With this method we achieve a high resolution image of the different retinal layers. The image also enables the detection of very early, subtle pathological changes in the various retinal layers (deposits, edema or bleeding), which may not be immediately visible in the eye. A documentation and progress control is thus possible over several years with great reliability.

fluorescence angiography

Using fluorescent dye, which is injected through a vein on the arm, the retinal vessels can be made visible with a camera. A dilation of the pupil is necessary for this procedure. These images can be used to detect many different diseases of the retina, e.g. changes in the context of macular degeneration, diabetes or tumors of the background of the eye.