About Detached Retina

Overview
A detached retina, also known as retinal detachment, occurs when the thin layer of light-sensitive nerve cells at the back of the eye, called the retina, peels away or detaches from its support tissue. This separation prevents the retina from receiving essential oxygen and nutrients from the blood vessels behind it. A detached retina is considered a medical emergency as it can lead to vision loss if not promptly treated. Symptoms of a detached retina may include flashes of light, changes in vision, gray or black specks floating in the vision, and a shadow on the sides or middle of the visual field. Treatment options for retinal detachment include reattaching the retina through laser surgery, freeze treatment for minor tears, or surgery to move and reattach the retina for more severe cases. It is important to seek immediate medical attention if you experience symptoms of a detached retina.
Causes and Risk Factors

The disease causes of a detached retina include:

  • Injury: Trauma to the eye can cause the retina to detach.
  • Inflammation: Inflammatory conditions affecting the eye can lead to retinal detachment.
  • Structural changes: Damage or structural changes in the eye over time can affect the retina and lead to detachment.

Risk factors for a detached retina include:

  • Age: The risk of retinal detachment increases with age, especially after 50 years.
  • Gender: It is more common in men.
  • Myopia (nearsightedness): High myopia can lead to thinning of the retina, making it more susceptible to tears and detachment.
  • Previous retinal detachment: Increases the risk for future detachment
  • Family history: A genetic predisposition may play a role.
  • Previous eye surgery: Surgeries, particularly cataract operations, can increase the risk of retinal detachment.
  • Trauma to the eye: Injuries can damage the retina.
  • Diabetes: Diabetes can lead to diabetic retinopathy, which can damage the blood vessels in the retina.
  • Cancer spreading to the eye: Though rare, this can increase the risk.
  • Infectious diseases: Such as tuberculosis or syphilis
  • Pre-eclampsia during pregnancy: This condition causes high blood pressure and can lead to eye complications, increasing the risk of retinal detachment.
  • Organ transplants: Immunosuppressive treatments can increase the risk.
  • Structural features affecting the eye: Certain shapes or abnormalities in the eye, such as a very thin retina or weak areas, can increase the risk
  • Retinal vein occlusion: A vascular condition that can lead to retinal damage
  • Certain eye conditions: Diseases such as lattice degeneration, where the retina becomes thinner and weaker in certain areas, or other degenerative retinal disorders can increase the risk of retinal detachment.

Some of these factors can be influenced or changed, while others cannot be changed. Having one or more risk factors may increase the likelihood of developing a detached retina, but they do not guarantee its occurrence. If you have any concerns or questions about your risk for detached retina, it is best to consult with your healthcare professional.

Symptoms

The most common early symptoms of a detached retina include:

  • New floaters: Small dark spots or squiggly lines that seem to float across your field of vision
  • Flashes of light: Sudden light flashes that resemble seeing stars after being hit in the eye
  • Shadow or curtain over your vision: A dark shadow in your side vision that gradually extends toward the center, described as a curtain being drawn across your field of vision
  • Blurred vision: A decline in visual clarity, making it hard to focus on an object or person

As the detachment progresses or becomes more severe, additional symptoms may occur:

  • Rapid and sudden increase in floaters
  • Gray or dark curtain or shadow in your field of vision
  • Flashing lights or seeing stars
  • Decreased peripheral (side) vision or partial loss of vision, starting peripherally and progressing toward the center
  • Blurred or distorted vision
  • Loss of central vision, especially if the macula detaches
  • Sudden and severe loss of vision, especially when the macula detaches
  • Dark shadow or "curtain" affecting the sides or middle of the field of vision
  • Pain, particularly in traumatic retinal detachment cases
  • Visual field defect, such as blind spots or areas of mission vision

It's important to note that a detached retina is a medical emergency, and if you suspect one, you should seek immediate medical attention.

Diagnosis

To diagnose a detached retina, doctors commonly perform the following examinations, tests, and procedures:

  • Medical history: The doctor will ask about your symptoms and any previous diagnoses.
  • Dilated eye exam: A doctor uses eye drops to widen your pupil and examines your retina.
  • Slit-lamp exam: This microscope allows the doctor to examine the structures within the eye.
  • Fundoscopy: Also known as ophthalmoscopy, this exam examines the structures at the back of the eye.
  • Fundus photo: This technique takes an image of the back area of the eye called the fundus.
  • Fundus fluorescein angiography (FFA): FFA uses a specialized dye to create an image of blood vessels in the retina.
  • Optical coherence tomography (OCT) scan: This imaging test creates a cross-sectional image of the retina.
  • Ultrasound: Doctors may use an ultrasound to examine the position of the retina.

To assess the extent or severity of a detached retina, additional examinations, tests, and procedures may include:

  • Preoperative evaluations: These are tests done before treatment. They include
    • Checking your best-corrected visual acuity or BCVA (how well you can see with glasses or contact lenses)
    • Measuring the pressure inside your eye (intraocular pressure or IOP)
    • Examining the front of your eye with a special microscope (called a slit-lamp)
    • Looking at the back of your eye (the retina) using advanced tools like:
      • A fundus exam, where the retina is closely examined
      • Optical coherence tomography (OCT), which uses light waves to take detailed images of the retina
      • An ocular B-scan ultrasound, which uses sound waves to create a picture of the inside of your eye
  • Surgical records review: This helps give important details, such as:
    • Any tears or breaks in the retina
    • How much of the retina is affected (measured in sections or “quadrants”)
    • Whether the macula (the part of the retina responsible for sharp, central vision) is damaged
    • Signs of retinal degeneration (wearing down or weakening of the retina over time)
  • Postoperative evaluations: These include BCVA assessment, IOP assessment, slit-lamp examination, and fundus examination at each visit.
  • Anatomical assessment: This determines if there is complete retinal attachment at the last follow-up.
  • Classification of breaks: Retinal breaks are grouped into categories based on their size compared to the diameter of the optic disc (the round area in the back of the eye where the optic nerve connects to the retina). They may be classified as small, medium, or large.

Remember that these are general procedures and individual cases may vary. It is important to consult with your healthcare professional for accurate diagnosis and evaluation.

Treatment Options

The goals of treatment for a detached retina are to preserve and restore vision or to prevent and slow down damage to the retina. The specific treatment options for a detached retina vary depending on the type and extent of the condition. Here are some of the recommended treatments and how they work to achieve these goals:

  • Medications: Depending on the underlying cause of the detached retina, medications such as anti-inflammatory drugs may be prescribed to reduce inflammation and prevent further damage.
  • Injections may be used to deliver medication directly into the eye to reduce inflammation or promote reattachment of the retina.
  • Therapies: Laser treatments may be used to seal retinal tears or create scar tissue that helps reattach the retina. This procedure is called photocoagulation.
  • Therapeutic procedures: Surgical interventions are often necessary for retinal detachment. These procedures include vitrectomy, where the gelatinous substance inside the eye is replaced, and scleral buckling, which involves placing a small band around the eye to push the retina back into place.
  • Self-care and health behavior changes: To prevent detachment due to injury, it is important to protect your eyes by wearing eye goggles or other safety gear during activities that may pose a risk. Also, avoiding activities that increase eye pressure or trauma can help protect the retina after treatment.

It's important to note that treatment options will be discussed and determined by an eye specialist based on individual circumstances. Remember to consult your healthcare professional for personalized advice.

Medication dosing may be affected by many factors. Check with your health care professional about dosing for your individual situation.Side effects can occur. Check with your health care professional or read the information provided with your medication for side effect information.

Progression or Complications

Retinal detachment can progress over time, especially in cases where foveal detachment is present. The fovea is a small, central part of the retina that provides the highest level of sharpness and detail in vision, making it essential for tasks like reading and recognizing faces. Studies have shown that eyes with foveal detachment often have a high risk of progression, with some cases worsening rapidly over a short period of time.

Complications of retinal detachment or retinal detachment surgery may include:

  • Retinal ischemia: A lack of blood flow to the retina, which can damage the eye
  • Bleeding in the vitreous: Blood leaking into the gel-like substance inside the eye (called vitreous), which can blur vision
  • Increased eye pressure: When pressure inside the eye becomes too high, potentially damaging the optic nerve
  • Cataracts: A clouding of the eye’s natural lens, which can make vision blurry
  • Neovascular glaucoma: A type of glaucoma caused by abnormal blood vessels growing in the eye, leading to increased pressure and vision problems
  • Repeated retinal detachment: When the retina detaches again after surgery

Immediate treatment is crucial to prevent further detachment and reduce the risk of severe complications like vision loss or blindness.