H18.541 Lattice corneal dystrophy, right eye

Name of the Condition

• Lattice corneal dystrophy, right eye

Summary

Lattice corneal dystrophy, right eye, is a genetic disorder affecting the cornea of the right eye. It is characterized by the deposition of abnormal protein fibers (amyloid) in the corneal stroma, leading to progressive clouding and vision impairment. The condition typically presents in early adulthood and may worsen over time.

Causes

The primary cause is genetic mutations, most commonly in the TGFBI gene, which encodes a protein involved in corneal structure. These mutations lead to the accumulation of amyloid deposits in the cornea. The condition is usually inherited in an autosomal dominant pattern.

Risk Factors

• Family history of lattice corneal dystrophy.
• Genetic predisposition due to inherited mutations in the TGFBI gene.

Symptoms

• Blurred or reduced vision in the right eye.
• Sensitivity to light (photophobia) in the right eye.
• Recurrent corneal erosions in the right eye.
• Visible lattice-like lines or opacities in the right cornea.
• Glare or halos around lights when viewing with the right eye.

Diagnosis

Diagnosis requires a comprehensive eye examination by an ophthalmologist, focusing on the right eye. Key assessments include slit-lamp examination to identify characteristic lattice-like opacities, corneal topography or tomography to evaluate structural changes, and genetic testing to confirm mutations in the TGFBI gene. Clinical correlation with family history is often helpful.

Treatment Options

• Lubricating eye drops to alleviate symptoms in the right eye.
• Therapeutic contact lenses to protect the right cornea.
• In severe cases, surgical intervention such as corneal transplantation may be necessary to restore vision in the right eye.
• Laser therapy may be considered for specific corneal changes.

Prognosis and Follow-Up

Prognosis varies depending on the severity of corneal involvement. Regular follow-up with an ophthalmologist is essential to monitor progression and adjust treatment. Vision may gradually decline over time, and some patients may require surgical intervention as the condition advances.

Complications

• Progressive vision loss in the right eye.
• Increased risk of corneal erosions or infections.
• Potential need for corneal transplantation if vision deteriorates significantly.

Lifestyle & Prevention

• Protect the right eye from injury or trauma.
• Use sunglasses to reduce light sensitivity.
• Follow prescribed eye care regimens to manage symptoms.
• Genetic counseling may be recommended for family planning.

When to Seek Professional Help

Seek immediate medical attention if you experience sudden vision changes, severe eye pain, or signs of corneal erosion in the right eye. Regular check-ups are advised for ongoing monitoring.

Tips for Medical Coders

Document the specific eye (right) and confirm the diagnosis of lattice corneal dystrophy. Ensure clinical documentation supports the laterality and the genetic or clinical findings associated with this condition.