H35.172 Retrolental fibroplasia, left eye

Name of the Condition

• Retrolental fibroplasia, left eye

Summary

Retrolental fibroplasia, left eye is a condition involving abnormal fibrous tissue growth behind the lens of the left eye, often associated with retinopathy of prematurity. This can lead to visual impairment or blindness if untreated. The condition primarily affects premature infants, with severity varying based on gestational age and other factors.

Causes

Retrolental fibroplasia is caused by abnormal retinal vascular development in premature infants. The retina, which normally completes vascularization by full-term birth, may not fully develop in preterm infants. Factors such as oxygen therapy, fluctuations in oxygen levels, and the infant's overall immaturity contribute to abnormal tissue growth behind the lens.

Risk Factors

• Prematurity (especially infants born before 31 weeks of gestation).
• Low birth weight (typically under 1500 grams).
• Oxygen therapy or fluctuations in oxygen levels during neonatal care.
• Multiple births (e.g., twins or triplets).
• Certain medical conditions affecting oxygen delivery or retinal development.

Symptoms

In early stages, retrolental fibroplasia may not present obvious symptoms. Severe cases can lead to abnormal eye movements, a white appearance of the pupil (leukocoria), or vision impairment as the child grows. Infants with this condition are typically asymptomatic, and diagnosis relies on routine screening.

Diagnosis

Diagnosis involves a comprehensive eye examination, often using indirect ophthalmoscopy to assess retinal blood vessel development and fibrous tissue growth. Imaging or specialized tests may be used to evaluate the extent of the condition. Documentation should specify the eye affected and any associated findings.

Treatment Options

Treatment depends on severity and may include monitoring for mild cases, laser therapy or cryotherapy to halt abnormal vessel growth, or surgical interventions for advanced stages. Early intervention is critical to prevent vision loss.

Prognosis and Follow-Up

Prognosis varies based on the stage at diagnosis and response to treatment. Regular follow-up is essential to monitor for progression or complications. Long-term outcomes range from normal vision to significant impairment, depending on the severity and timeliness of care.

Complications

Potential complications include retinal detachment, glaucoma, strabismus, amblyopia, or permanent vision loss. Severe cases may require ongoing management of visual impairments or related conditions.

Lifestyle & Prevention

Prevention focuses on careful management of oxygen levels in premature infants and adherence to screening guidelines. For affected individuals, low-vision aids or rehabilitation may support daily functioning. Protecting the eyes from injury is also important.

When to Seek Professional Help

Seek immediate medical attention if symptoms like leukocoria, abnormal eye movements, or vision changes occur. Routine screening for premature infants is critical to detect the condition early.

Tips for Medical Coders

Document the specific eye (left eye) and any associated findings. Ensure the code H35.172 is used when the condition is localized to the left eye. Include details about severity, treatment, or follow-up if relevant to support accurate coding and clinical context.