Cryotherapy for active retinopathy of prematurity

Area of Science:

• Ophthalmology
• Neonatology
• Pediatric Medicine

Background:

• Retinopathy of prematurity (ROP) is a significant cause of visual impairment in premature infants.
• Stage 3 ROP with plus disease indicates severe, active disease requiring intervention.

Purpose of the Study:

• To evaluate the efficacy of cryotherapy versus no treatment in eyes with Stage 3 retinopathy of prematurity and plus disease.
• To determine if cryotherapy offers a statistically significant benefit over observation in this patient population.

Main Methods:

• A controlled study involving 28 premature infants with bilateral symmetrical Stage 3 ROP and plus disease.
• One eye per patient was treated with cryotherapy, while the contralateral eye served as the control.
• Patients predominantly weighed under 1000 grams, with a female predominance.

Main Results:

• Eleven patients showed improvement in both treated and untreated eyes.
• Eleven patients demonstrated improvement in the cryotherapy-treated eye and progression in the untreated eye.
• Statistical analysis (binomial distribution) yielded P values of 0.0005 (one-tailed) and 0.001 (two-tailed), indicating significance.

Conclusions:

• Cryotherapy appears to be a preferred treatment over no treatment for Stage 3 retinopathy of prematurity with plus disease.
• The findings suggest a statistically significant benefit of cryotherapy in this cohort of premature infants.