The retina is the light-sensitive layer located at the back of the eye. It works like the film in a camera by capturing incoming light. The retina contains millions of photoreceptor cells called rods and cones that convert light into electrical signals. These signals travel through the optic nerve to the brain, where they are processed into visual images. A healthy retina is essential for good vision.
The macula, also known as the “yellow spot,” is a tiny area located at the center of the retina. It plays a crucial role in vision because it contains the highest concentration of cone cells. These cells are responsible for color perception and sharp, detailed vision.
The macula is essential for focusing on objects directly in front of you, such as faces, letters, and fine details.
Due to constant exposure to intense light and high metabolic activity, the macula is especially vulnerable to changes caused by aging or diseases.
Retinal and macular diseases often begin without noticeable symptoms, making regular eye exams essential. This is especially important if you have risk factors such as age, diabetes, high blood pressure, or severe nearsightedness.
Our practice uses advanced diagnostic methods for early detection. We perform retinal scanning without the need for pupil dilation, capturing wide-angle digital images of the retina to document and identify peripheral changes.
We also use optical coherence tomography (OCT) to obtain high-resolution cross-sectional images of the macula and optic nerve. This allows precise detection of swelling, fluid accumulation, or nerve fiber loss on a millimeter scale.
Diseases affecting these structures usually develop slowly and without pain. However, if left untreated, they cause irreversible damage.
| Illness | Affected structure | Brief Description | Symptoms in the late stage |
| Age-related macular degeneration (AMD) is a condition that affects the central part of the retina, leading to vision loss in older adults. | Macula | Degeneration of the light-sensitive cells in the macula occurs in two forms: dry and wet. This condition causes blurred vision, distorted images known as metamorphopsia, and a dark spot in the center of the visual field. | |
| Diabetic retinopathy is a complication of diabetes that affects the eyes and can lead to vision loss if untreated. | Peripheral and central retina | High blood sugar damages the retinal blood vessels, causing bleeding and swelling known as macular edema. | Gradual worsening of vision caused by macular edema leading to central vision loss. |
| Retinal detachment | Entire retina | Retinal detachment from its supporting layer is an emergency. | Flashes of light, black specks resembling soot, and a dark curtain appearing in the field of vision. |
| Epiretinal gliosis, also known as macular pucker, is a condition that affects the retina. | Macula surface | A thin membrane forms on the macula, creating folds. | Mild distortions such as wavy lines and reduced visual sharpness. |
The health of the retina is crucial for central vision. Many serious diseases affecting this delicate tissue, such as age-related macular degeneration (AMD) and diabetic retinopathy, often develop gradually without initial pain or noticeable symptoms. [Name of your practice/organization] wants to emphasize the importance of early and thorough eye examinations, especially on the occasion of [current event, e.g., World Sight Day].
Affected area: Macula
Overview: Degeneration of the light-sensitive cells in the macula, occurring in dry and wet forms.
Late-stage symptoms: Blurred vision, distorted vision (metamorphopsia), and a dark spot in the center of vision.
Affected area: Peripheral and central retina
Overview: Damage to retinal blood vessels caused by high blood sugar. This leads to bleeding and swelling (macular edema).
Late-stage symptoms: Gradual loss of vision and central vision loss due to macular edema.
Affected area: Entire retina
Overview: Detachment of the retina from its nourishing layer, which is a medical emergency.
Late-stage symptoms: Flashes of light, floaters appearing as black spots, and a dark curtain blocking part of the visual field.
Affected area: Surface of the macula
Overview: Formation of a thin membrane on the macula that causes wrinkling.
Late-stage symptoms: Mild distortion such as wavy lines and reduced sharpness of vision.
The retina is a large, light-sensitive layer located at the back of the eye. Within the retina lies the macula, a small central area. The macula is the most important part because it enables sharp vision, detailed sight, and color perception.
Sudden symptoms like flashes of light, many small black spots floating around, or a black curtain spreading across your field of vision may indicate a retinal detachment. This condition is a medical emergency and requires immediate treatment by an eye specialist.
The retina itself does not contain pain receptors. Therefore, most diseases such as macular degeneration or diabetic retinopathy develop without causing pain. Eye pain usually indicates inflammation of the cornea or conjunctiva or an increase in intraocular pressure, as seen in a glaucoma attack.
Maintaining a healthy lifestyle is important. For the macula, taking certain antioxidants such as lutein, zeaxanthin, and vitamins C and E, along with omega-3 fatty acids, can slow the progression of existing macular degeneration. Please ask us about specific supplements.
Yes, this is a very important point. There is a type of glaucoma called "normal-tension glaucoma" where the optic nerve is damaged even though the eye pressure remains within the normal range. Therefore, measuring eye pressure alone is not enough for reliable glaucoma screening. Examining the optic nerve is always the key factor.
Dry AMD is the more common form and progresses slowly. It is characterized by deposits called drusen and the gradual loss of photoreceptor cells.
Wet AMD is the less common but more dangerous type. New leaky blood vessels grow beneath the retina, releasing fluid and blood, which can quickly cause severe vision loss.
As your ophthalmologist in Frankfurt, Dr. med. Mareen Schmidt combines extensive clinical experience as a senior physician in the Clinic for Retinal Diseases with over 10,000 intraocular procedures, including IVOM, laser treatments, cataract surgeries, and vitreous body surgeries. She uses state-of-the-art diagnostic techniques to ensure the highest quality care. Her approach is based on scientifically proven ophthalmology that prioritizes the patient. In her practice in Frankfurt’s Westend district, she takes the time to provide accurate diagnoses and personalized, trustworthy consultations.
Dr. med. Mareen Schmidt has been awarded the BDOC Seal of Quality. This certification, developed by BDOC, recognizes skilled eye surgeons and is only granted to experienced specialists in eye surgery.
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