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VSX1 Gene Corneal Dystrophy, Posterior Polymorphous, Type 1 NGS Genetic Test

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VSX1 Gene Corneal Dystrophy, Posterior Polymorphous, Type 1 NGS Genetic Test

Short Name: VSX1 PPCD1 NGS Genetic Test

Also known as: PPCD1, Posterior Polymorphous Corneal Dystrophy Type 1

VSX1 Gene Corneal Dystrophy, Posterior Polymorphous, Type 1 NGS Genetic Test test available at DNA Labs India for ₹20,000. Uses NGS Technology on Blood, Extracted DNA, or One drop Blood on FTA Card samples. Results in 3-4 weeks. Free home collection in 300+ cities across India.

Genetic TestAll Ages🏠 Home Collection

✍️ Written By

🩺 Medically Reviewed By

Dr Pasupathy Arumugam

Dr Pasupathy Arumugam

Consultant Pathologist · Reg: 21521

Last reviewed: September 7, 2026

Overview

To identify mutations in the VSX1 gene associated with posterior polymorphous corneal dystrophy type 1 (PPCD1), enabling accurate diagnosis, family screening, and personalized management.

Test Code
1478
Price
₹20,000
Sample Type
Blood, Extracted DNA, or One drop Blood on FTA Card
Result Time
3-4 weeks
Fasting Required
No
Method
NGS Technology
Step 1

Sample Collection

Provide clinical history and undergo genetic counseling to draw a pedigree chart of affected family members.

Method: Venipuncture or Saliva Collection

Step 2

Laboratory Analysis

Sample collected via blood draw or saliva; minimal discomfort expected.

Step 3

Report Delivery

Sample is labeled and sent to the laboratory for analysis; monitor for any site reactions.

Timeline: 3-4 weeks

Patient Instructions

1
Before the Test:Consult with an ophthalmologist and genetic counselor; provide detailed clinical and family history.
2
During the Test:Sample collection procedure; minimal invasion with blood draw or saliva.
3
After the Test:Wait for results (3-4 weeks); follow up with healthcare provider for interpretation and next steps.

About This Test

Who Should Get This Test

To identify mutations in the VSX1 gene associated with posterior polymorphous corneal dystrophy type 1 (PPCD1), enabling accurate diagnosis, family screening, and personalized management.

How to Prepare

  • Ensure proper sample labeling
  • Follow aseptic techniques
  • Store samples at ambient room temperature

Doctor's Notes

Reviewed by — MBBS, MD (Pathology) · Reg. No. 21521

"Genetic testing for VSX1 mutations confirms PPCD1 diagnosis and helps in management of corneal dystrophies."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeBlood, Extracted DNA, or One drop Blood on FTA Card
Collection MethodVenipuncture or Saliva Collection

Sample Stability

Blood samples stable for 24 hours at room temperature
Extracted DNA stable for longer periods if stored properly
Sample Rejection Criteria:
  • Hemolyzed or clotted samples
  • Insufficient sample volume
  • Contaminated samples

Understanding Your Results

Results indicate the presence or absence of mutations in the VSX1 gene. Genetic counseling is recommended for interpretation.
📊

Confirms diagnosis of PPCD1; recommend family screening and ophthalmologist follow-up.

📊

PPCD1 is unlikely based on genetic testing; consider other causes and clinical evaluation.

⚠️ When to Consult a Doctor:

If you experience symptoms like blurred vision, halos, or eye pain, or have a family history of corneal dystrophy, consult an ophthalmologist for evaluation.

Limitations

  • ⚠May not detect all genetic variants
  • ⚠Requires genetic counseling for interpretation
  • ⚠Results should be correlated with clinical findings

Risks & Considerations

  • ●Minor bruising or discomfort at sample site
  • ●Infection risk (very low)
  • ●Psychological impact of genetic results

Interfering Factors

  • ●Sample contamination
  • ●Degraded DNA quality
  • ●Incorrect sample collection

Compare With Similar Tests

TestVSX1 Gene Corneal Dystrophy, Posterior Polymorphous, Type 1 NGS Genetic TestCorneal TopographyCorneal PachymetryOther Corneal Dystrophy Genetic TestsComprehensive Eye Examination
ComparisonVSX1 Gene Corneal Dystrophy, Posterior Polymorphous, Type 1 NGS Genetic TestMeasures corneal shape; not genetic.Measures corneal thickness; non-genetic.Tests for different genes; use NGS for VSX1.General assessment; not specific for PPCD1.

Frequently Asked Questions

What is posterior polymorphous corneal dystrophy type 1 (PPCD1)?
PPCD1 is a rare inherited eye disorder caused by mutations in the VSX1 gene, affecting the cornea's clarity and structure.
What are the common symptoms of PPCD1?
Symptoms include blurred vision, light sensitivity, halos around lights, cloudy vision, and eye pain, though some may be asymptomatic.
How is PPCD1 diagnosed?
Diagnosis involves eye exams like corneal topography and pachymetry, confirmed by genetic testing for VSX1 mutations.
What is the VSX1 gene?
The VSX1 gene provides instructions for a protein important for corneal development; mutations can lead to PPCD1.
What is NGS genetic testing?
NGS (Next Generation Sequencing) is a powerful method to sequence genes like VSX1, identifying mutations associated with PPCD1.
What is the cost of the VSX1 gene NGS test in India?
The test costs approximately INR 20,000, with free home sample collection available across India.
How is the sample collected for this test?
Samples can be blood, extracted DNA, or saliva collected non-invasively at home or in a clinic.
How long does it take to get results?
Results are typically available within 3-4 weeks after sample collection.
Is the genetic test painful?
No, it involves a simple blood draw or saliva collection with minimal discomfort.
Who should consider getting tested for PPCD1?
Individuals with symptoms, family history of corneal dystrophy, or those advised by an ophthalmologist or genetic counselor.
Is genetic counseling required before the test?
Yes, genetic counseling is recommended to understand implications and draw a family pedigree chart.
Are there any risks associated with this genetic test?
Risks are minimal, such as minor bruising from blood draw, but genetic results may have psychological impacts.
Worried about the process? Our certified phlebotomists collect thousands of samples every month across India. The process takes under 5 minutes and is virtually painless. Questions? Message us on WhatsApp — we're here 7 days a week.

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For Hospitals & Clinics

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We serve as a reference laboratory for hospitals and clinics across India. Send samples from your facility with same-day pickup, priority processing, and results delivered through our online portal. Competitive institutional pricing available.

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