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Living with Cataract 40

An early-onset eye condition in which the lens is cloudy, caused by changes in the NHS gene.

Understanding Cataract 40

Cataract 40 is an early-onset cataract (clouding of the eye's lens) not linked to other syndromes and caused by a change in the NHS gene.

GARD describes it as non-syndromic, which means it is not part of a wider syndrome. GARD does not list other details.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet.

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Your doctor may refer you to a specialist who knows rare conditions.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with rare disease patient organizations for support
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Can NHS genetic testing confirm the diagnosis?
When might cataract surgery be needed?
How might this affect other family members?

Quick facts

InheritanceX-Linked

A change in the NHS gene causes this condition. It is X-linked, which means the gene is on the X chromosome.

Also known as: cataract 40 with or without microcornea; cataract 40 x-linked; cataract 40, x-linked; cataract type 40; cataract, congenital total, with posterior sutural opacities in heterozygotes; ctrct40

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Cataract 40GARD ID 8278 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Cataract 40.

Explore the Cataract 40 blog

Explore research for Cataract 40

Explore actively recruiting Cataract 40 studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Cataract 40 with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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I can help you find recruiting Cataract 40 studies. Enter a ZIP code, address or city below and I'll look within 50 miles.

Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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HealthStory evolves private journaling with a living AI journal that talks back and asks thoughtful questions, helping you capture your Cataract 40 experiences more deeply and prepare for better conversations with your doctors and care team.

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