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Corneal Dystrophies: Inherited Corneal Conditions

Corneal dystrophies are inherited, usually bilateral conditions in which abnormal material accumulates in specific corneal layers. Depending on the layer involved, they cause recur…

Corneal Dystrophies: Inherited Corneal Conditions — specialist eye care at Sentra Clinic & Hospital, Mumbai
Specialist eye care at Sentra Clinic & Hospital, Malad East, Mumbai.
Quick Answer

Corneal dystrophies are inherited, usually bilateral conditions in which abnormal material accumulates in specific corneal layers. Depending on the layer involved, they cause recurrent painful erosions, glare or gradually clouding vision. Management ranges from lubricants and laser (PTK) to layer-specific transplantation (DALK or DSAEK).

What are corneal dystrophies?

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Dystrophies are genetic conditions — not caused by injury, diet or screen use — in which deposits or dysfunctional cells affect one corneal layer. They usually affect both eyes, progress slowly over years, and are often discovered during routine examination or because a relative is affected.

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Major types by layer

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LayerExamplesTypical impact
Epithelium / basement membraneEpithelial basement membrane (map-dot-fingerprint) dystrophyRecurrent erosions — sudden pain on waking; fluctuating vision
Bowman / anterior stromaReis-Bücklers, Thiel-Behnke dystrophiesEarly erosions and anterior scarring
StromaLattice, granular, macular dystrophiesProgressive deposits, glare and haze; macular can cloud severely
EndotheliumFuchs endothelial dystrophyMorning blur, glare, corneal swelling; may need DSAEK
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Symptoms

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  • Recurrent sharp pain on waking (erosions), with watering and light sensitivity
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  • Glare, halos and gradually hazy vision
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  • Morning blur that clears during the day (Fuchs dystrophy)
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  • Often no symptoms early — found on examination
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Diagnosis and family screening

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Slit-lamp appearance is often characteristic; imaging (tomography, pachymetry, endothelial cell counts) grades severity. Because these conditions are inherited, examining first-degree relatives can be helpful, and genetic counselling may be discussed for some types.

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Treatment

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  • Lubricants and hypertonic saline — first line for erosions and Fuchs-related swelling.
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  • Surface procedures — epithelial debridement or laser (PTK) for recurrent erosions and superficial deposits.
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  • Layer-specific transplant — DALK for stromal disease, DSAEK for endothelial failure such as Fuchs dystrophy. Recurrence in the graft is possible over years for some stromal dystrophies.
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Information on this page is for general education and does not replace an examination, diagnosis or personalised medical advice from a qualified eye-care professional.

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