Retinoblastoma: Early Signs, Diagnosis & NCLEX-RN Guide

What Is Retinoblastoma?

Retinoblastoma is a rare type of eye cancer that develops in the retina, the light-sensitive layer at the back of the eye. It mainly affects children under five years of age and may occur in one or both eyes. Early detection is essential, as timely treatment can help protect the child’s vision and prevent the cancer from spreading.

Retinoblastoma is associated with changes in the RB1 gene, which normally helps control cell growth. Some cases are hereditary, while others develop due to genetic changes that are not inherited.

Early Signs and Symptoms of Retinoblastoma

Recognizing the early symptoms of retinoblastoma is important for parents, caregivers and healthcare professionals. The most common warning signs include:

• Leukocoria: A white reflection in the pupil, often noticed in flash photographs instead of the usual red-eye reflection.
• Strabismus: Misalignment of the eyes, where one eye may turn inward or outward.
• Poor vision: The child may have difficulty seeing or tracking objects.
• Redness and swelling: Persistent redness, irritation or swelling around the affected eye.
• Eye pain or tearing: May occur in some children, particularly in more advanced cases.

A white pupil does not always indicate retinoblastoma, but it should never be ignored. Any unusual or repeated white reflection in a child’s eye requires prompt assessment by an eye specialist.

Diagnosis and Treatment

Retinoblastoma is usually diagnosed through a detailed eye examination by a specialist. Depending on the child’s condition, investigations may include an eye examination under anaesthesia, ultrasound, MRI and genetic testing.

Treatment depends on the size and location of the tumor, whether one or both eyes are affected, and whether the cancer has spread. Options may include chemotherapy, laser therapy, cryotherapy, radiation therapy or surgery to remove the affected eye in selected cases. The specialist team determines the most appropriate treatment based on the child’s individual needs.