Quick Answer: Which is the most common type of congenital cataract?

Trisomy 21, or Down syndrome, is the most common autosomal trisomy, with an incidence of 1 per 800 births. Systemic features include mental retardation, stunted growth, mongoloid facies, and congenital heart defects.

Which type of cataracts are most common?

As you age, a cataract can develop because of natural changes in the lens of your eye. This is called an age-related cataract, and it’s the most common type of cataract. Age-related cataracts may be more likely to form if you: Smoke.

What is the most common cause of congenital cataract?

Congenital Cataracts: Causes

Congenital cataracts also can occur when, during pregnancy, the mother develops infections such as measles or rubella (the most common cause), rubeola, chicken pox, cytomegalovirus, herpes simplex, herpes zoster, poliomyelitis, influenza, Epstein-Barr virus, syphilis and toxoplasmosis.

What are the types of congenital cataracts?

Congenital cataracts occur in a variety of morphologic configurations, including lamellar, polar, sutural, coronary, cerulean, nuclear, capsular, complete, membranous.

Is congenital cataract common?

Congenital cataracts are rare in babies, but cataracts can happen at any age. They’re more common in adults age 50 and older. Cataracts are the leading cause of vision loss in the United States, but they can be treated with surgery.

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What are the four types of cataracts?

Cataract types include:

  • Cataracts affecting the center of the lens (nuclear cataracts). …
  • Cataracts that affect the edges of the lens (cortical cataracts). …
  • Cataracts that affect the back of the lens (posterior subcapsular cataracts). …
  • Cataracts you’re born with (congenital cataracts).

What is the least common type of cataract?

Congenital cataracts, which are present at birth or form during a baby’s first year, are less common than age-related cataracts. Secondary cataracts are caused by disease or medications.

What are the 3 types of cataracts?

There are three primary types of cataracts: nuclear sclerotic, cortical and posterior subcapsular.

  • Nuclear Sclerotic Cataracts. …
  • Cortical Cataracts. …
  • Posterior Subcapsular Cataracts.

How are congenital cataracts inherited?

About 50% of bilateral cases have a genetic basis. Congenital cataract is both clinically and genetically heterogeneous; isolated congenital cataract is usually inherited as an autosomal dominant trait although autosomal recessive and X linked inheritance are seen less commonly.

What causes birth cataracts?

Some infants are born with cataracts, known as congenital cataracts. 1 These cataracts may develop because of certain infections, metabolic problems, diabetes, trauma, inflammation, or drug reactions. Some antibiotics used to treat infections in pregnant women may cause cataracts in newborn babies.

What is pediatric cataract?

Pediatric cataract is a leading cause of childhood blindness. Untreated cataracts in children lead to tremendous social, economical, and emotional burden to the child, family, and society. Blindness related to pediatric cataract can be treated with early identification and appropriate management.

What are juvenile cataracts?

Juvenile cataracts are by definition those with an onset in childhood, after infancy, irrespective of underlying etiology.

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How are congenital cataracts diagnosed?

To diagnose congenital cataract, the infant should have a complete eye exam by an ophthalmologist. The infant may also need to be examined by a pediatrician who is experienced in treating inherited disorders. Blood tests or x-rays may also be needed.

Is cataract unilateral or bilateral?

Cataracts may be unilateral or bilateral and can vary widely in size, morphology and degree of opacification from a small white dot on the anterior capsule to total opacification of the lens. Consequently, the effect on vision, course of treatment and prognosis may also be widely variable.