Retina Health Information

Lattice Degeneration

is a condition that involves abnormal thinning of the peripheral retina, which is the tissue that lines the back wall of the eye and is critical for maintaining good vision. When lattice degeneration is present, the retina is more vulnerable to developing tears, breaks, or holes that could ultimately lead to a visually debilitating condition called a retinal detachment. For this reason, once diagnosed lattice degeneration should be closely monitored.

Clinically, lattice degeneration is characterized by oval or straight patches of thinned retina, sometimes accompanied by pigment clumps or a crosshatching pattern  formed by sclerotic vessels (Figure 1). Lattice may be found in only one eye, but often is present in both. There may be just one lesion or clusters of many. Lattice is often located along the outer border of the retina.

Figure 1. Photograph of the peripheral retina demonstrates an area of lattice degeneration. Note the retinal thinning, which is characterized by a color change. There are also pigment clumps and crosshatching of sclerotic vessels, two features commonly observed in lattice degeneration. Hamid Ahmadieh, MD, Labbafinejad Medical Center. Retina Image Bank 2015; Image 25882. © 2018, American Society of Retina Specialists.

Lattice degeneration itself does not cause symptoms, so the only way to diagnose the condition is with a dilated fundus examination by an eye care provider. A dilated fundus examination is done by administering dilating eye drops in your eyes to expand the pupil so that the retina can be carefully evaluated. Dilating drops will cause your vision to be blurry for several hours before returning to normal.

The eye care specialist will then use a headlight and a special lens to perform the exam. Depending on the nature of your findings, the doctor may also examine your retina while exerting a slight amount of pressure around your eye (scleral depression). In general, no imaging tests are necessary to diagnose this disease, although some providers may obtain wide-angle photographs of your retinas to assist in monitoring your condition.


Causes

Lattice degeneration occurs in 8% to 10% of the general population and its cause is not fully understood. There does not appear to be a correlation in incidence by gender or race. And while this condition does not follow a definitive inheritance pattern, it frequently clusters within families. It is most commonly found in patients with myopia
(nearsightedness), but lattice-like lesions are also seen in rare diseases such
as Stickler syndrome, Ehlers-Danlos, and Marfan syndrome. There is no
prevention or cure for lattice degeneration.

Risk factors

Lattice degeneration itself does not cause symptoms. However, in rare cases it can lead to a retinal tear or detachment, which are very serious conditions that require
prompt attention from an ophthalmologist or retina specialist.

Symptoms include:

  • Blurred vision
  • Flashing lights
  • Floaters
  • Curtain obscuring part of your peripheral visual field

If you experience any of these, seek prompt ophthalmic care.


  • Quick diagnosis
  • Complex medical tests
  • Early identification and intervention
  • Complex surgical interventions
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Treatment and Prognosis

Treatment and prognosis

Lattice is thought to be minimally progressive and fortunately, the vast majority of patients with this condition never develop a retinal tear or detachment. Therefore, in general, no treatment is needed for lattice degeneration aside from regular monitoring with dilated fundus examinations.

In rare circumstances, some physicians may perform preventive laser therapy or cryotherapy (a type of freezing treatment) to strengthen the peripheral retina in the areas where it is weak. Your doctor will discuss the risks and benefits of doing so with you if he or she thinks it is worth considering. It is not known if these interventions are effective in preventing retinal complications.

Rarely, lattice degeneration can lead to complications such as a retinal tear or detachment. Symptoms to look out for include blurry vision, a curtain obscuring part of the outer visual field, flashing lights, and new floaters. If any of these occur, you should seek prompt attention from an ophthalmologist or retina specialist.

In those who do develop a retinal tear or detachment, treatment will be performed, typically by a retina specialist. This treatment can range from a laser treatment completed in the office to surgery in the operating room, depending on the severity of the condition.

In summary, lattice degeneration is a relatively common condition that affects the retina, especially in nearsighted people. While its presence increases the risk of a retinal tear or detachment, the vast majority of patients will never experience symptoms or complications from their lattice degeneration.

If you are diagnosed with lattice degeneration, the most important actions you can take to protect the health of your eyes are to visit your eye care provider on a regular basis and know the symptoms of a retinal tear or detachment so you can seek prompt treatment if needed.

Procedures

Treatment

Lattice is thought to be minimally progressive and fortunately, the vast majority of patients with this condition never develop a retinal tear or detachment. Therefore, in general, no treatment is needed for lattice degeneration aside from regular monitoring with dilated fundus examinations.....

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