Retinopathy of Prematurity in Infants: Causes and Risk Factors

What is Retinopathy of Prematurity (ROP)? Dr. Mahmoud Hassan explains the causes affecting newborns and premature infants, and the importance of early diagnosis.

Retinopathy of Prematurity in Infants: Understanding Causes and Risk Factors

Retinopathy of Prematurity, commonly known as ROP, is a serious medical condition that can affect the vision of newborn infants who are born prematurely. At Mashreq Eye Center in Cairo, we are fully aware of the importance of recognizing this condition. Dr. Mahmoud Hassan, vitreoretinal surgeon, contributes his efforts and expertise as an integral part of the center's team to provide the best possible care. Understanding the main causes and potential risk factors for ROP is the first step towards early diagnosis and effective treatment, which can save your child's eyesight.

What is Retinopathy of Prematurity (ROP)?

The blood vessels in the retina normally grow from the center of the eye towards the periphery, and this process is usually completed a few weeks before birth. In premature infants, this process may not complete normally, leading to abnormal growth of blood vessels in the retina. These abnormal blood vessels are fragile and can bleed easily, leading to the formation of scar tissue behind the retina. This scar tissue can pull on the retina, causing it to detach from the back wall of the eye, a condition known as retinal detachment, which can lead to permanent vision loss if not treated.

Main Causes of Retinopathy of Prematurity

Premature birth is the primary and most common factor in the development of ROP. The more premature the infant (i.e., born at an earlier gestational age), the higher the likelihood of developing ROP. However, other factors increase the risk of this condition, including:

• Oxygen Deficiency: Premature infants may require oxygen therapy in incubators to maintain blood oxygen levels. While oxygen is essential for survival, high levels can negatively affect the development of blood vessels in the retina.
• Very Premature Birth: Infants born before 30 weeks of gestation are at the highest risk.
• Low Birth Weight: Infants weighing less than 1500 grams at birth have a higher risk.
• Breathing Problems: The need for mechanical ventilation or intensive respiratory therapy.
• Blood Transfusions: Some infants may require blood transfusions, which can increase risks.
• Infections: Infections such as sepsis or pneumonia.
• Blood Clotting Issues.
• Exposure to very bright or inappropriate light in the incubator.

Warning Signs Parents Should Look For

Often, there are no obvious symptoms of ROP in the early stages, which makes regular screening vital. However, some signs may be concerning and warrant immediate consultation with a doctor:

• White Pupil: In some cases, the pupil may appear white or gray instead of the natural red color when light is shone on it, especially in low-light conditions.
• Strabismus or Abnormal Eye Movement: Parents might notice that the infant's eyes do not move together harmoniously, or there is an abnormal blinking movement.
• Delayed Visual Development: The inability of the infant to track moving objects with their eyes at a relatively advanced age.
• Sudden Refusal to Feed or Discomfort when Held, which may indicate eye pain.

It is essential to emphasize that these signs may not always be linked to ROP, but they do require a comprehensive medical evaluation to rule out any serious problems. Early diagnosis is key to successful treatment and significantly reduces the risk of permanent vision loss.

The Importance of Early and Regular Screening

At Mashreq Eye Center, we emphasize that detecting ROP in its early stages allows us to intervene effectively with treatment. Screening typically begins a few weeks after birth and is performed by an ophthalmologist specializing in retinal diseases and pediatric ophthalmology. A specialized ophthalmoscope is used to carefully examine the infant's retina. The frequency of examinations and follow-up schedule depend on the infant's condition and the progression of ROP. The precise timing and follow-up schedule for screening premature infants' retinas are crucial to ensure no opportunity for treatment is missed.

Available Treatment Options

If ROP is diagnosed, there are available treatment options aimed at preventing the condition from worsening and stopping the growth of abnormal blood vessels, thereby helping to keep the retina in place as much as possible. Key treatments include:

• Laser Photocoagulation: Laser is used to destroy the peripheral areas of the retina that are not functioning properly, reducing the signals for abnormal blood vessel growth.
• Pharmacological Treatment (Intravitreal Injections): In some cases, medications such as Bevacizumab may be injected directly into the vitreous humor of the eye. These medications help inhibit growth factors that stimulate abnormal blood vessel growth.
• Surgery: In advanced cases where retinal detachment occurs, complex surgical procedures such as vitrectomy or scleral buckling may be necessary to reattach the retina.

The most appropriate treatment is determined based on the stage and severity of the condition, as well as the infant's overall health. The vitreoretinal surgeon's expertise in evaluating these cases and making appropriate treatment decisions plays a crucial role in achieving the best possible outcomes.

Final Advice from Dr. Mahmoud Hassan

Retinopathy of prematurity in infants is a medical challenge that demands vigilance and cooperation between doctors and families. If you have a premature infant, do not hesitate to discuss the examination and follow-up plan with the healthcare team. Early attention and accurate diagnosis can make a tremendous difference in your child's future vision. We always encourage you to inquire and ask questions, as your children's eye health is our utmost priority.

For Reservations and Inquiries: 01002310813

For more information on eye health and advanced surgeries, you can follow Dr. Mahmoud Hassan's channel on YouTube.

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