Retinopathy of Prematurity Treatment & Management
- Author: Mounir Bashour, MD, CM, FRCS(C), PhD, FACS; Chief Editor: Hampton Roy Sr, MD more...
Medical Care
Although oxygen therapy has been blamed for ROP progression in the past, many physicians believe that maximizing the oxygen saturation in these critical babies will induce regression in prethreshold disease. STOP-ROP (Supplemental Therapeutic Oxygen for Prethreshold Retinopathy Of Prematurity), a multicentered national study, found that no benefit was achieved by keeping the oxygen saturation above 95%. However, higher oxygen saturation levels were not found to worsen the disease in prethreshold babies.
Surgical Care
Cryotherapy was the original mode of treatment (since the 1970s). The procedure may be completed with general or topical anesthesia. It involves approximately 50 applications of a freezing probe under direct visualization with cryo applications to the avascular retina anterior to the fibrovascular ridge. The stress of the procedure may require assisted ventilation after the procedure. The most common complications include intraocular hemorrhage, conjunctival hematoma, conjunctival laceration, and bradycardia.
Laser surgery (eg, xenon, argon, diode) has been shown to be as effective as cryotherapy for ROP. The systemic adverse effects are significantly less, the ocular tissues are less traumatized, posterior zone 1 disease is treated easily, general anesthesia is not necessary, and, as many studies show, there is less incidence of late complications. Complications include corneal haze, burns of the iris, cataracts, and intraocular hemorrhages.
Scleral buckling surgery and/or vitrectomy is usually performed for stages 4 and 5. Some surgeons recommend surgery for stage 4A, while others do not think surgery should be performed because of the risks and unproven benefit. Although some surgeons advocate surgery for stage 5, the surgeon with the most experience (S.T. Charles, MD, personal communication) no longer recommends surgery because of the poor anatomical and visual prognosis.
Consultations
An ophthalmology consultation is essential in a premature infant born weighing less than 1500 g and/or younger than 32 weeks' gestation (as defined by the attending neonatologist). Also, selected infants with a birth weight of 1500-2000 g or a gestational age of more than 32 weeks with an unstable clinical course, including those requiring cardiorespiratory support and who are believed by their attending pediatrician or neonatologist to be at high risk, should have retinal screening examinations performed after pupillary dilation using binocular indirect ophthalmoscopy to detect ROP. One examination is sufficient only if it unequivocally shows the retina to be fully vascularized in each eye. The ophthalmologist chosen should be one with the most experience in screening or treating this disease. A review of two randomized crossover trials performed in single centers found that the application of topical proparacaine 30 seconds before the evaluation brings about a reduction in pain scores, particularly at themoment of speculum insertion.[12]
An ophthalmologist experienced in this modality should perform laser or cryotherapy surgery.
Scleral buckle surgery and vitrectomy techniques in these small eyes should be left in the hands of experienced surgeons.
Practitioners involved in the ophthalmologic care of premature infants should be aware that the retinal findings that require strong consideration of ablative treatment were revised according to the Early Treatment for Retinopathy of Prematurity Randomized Trial study. The finding of threshold ROP, as defined in the Multicenter Trial of Cryotherapy for Retinopathy of Prematurity, may no longer be the preferred time of intervention.
Treatment may also be initiated for the following retinal findings:
- Zone 1 ROP - Any stage, with plus disease
- Zone 1 ROP - Stage 3, with no plus disease
- Zone 2 ROP - Stage 2 or 3, with plus disease
The number of clock hours of disease may no longer be the determining factor in recommending ablative treatment. Treatment should generally be accomplished, when possible, within 72 hours of determination of treatable disease to minimize the risk of retinal detachment.
Diet
Vitamin E is not recommended in infants who weigh less than 1500 g.
Terry TL. Extreme prematurity and fibroplastic overgrowth of persistent vascular sheath behind each crystalline lens I. Preliminary report. Am J Ophthalmol. 1942;25:203-4.
Campbell K. Intensive oxygen therapy as a possible cause for retrolental fibroplasia. A clinical approach. Med J Austr. 1951;2:48-50.
Kretzer FL, Hittner HM. Retinopathy of prematurity: clinical implications of retinal development. Arch Dis Child. Oct 1988;63(10 Spec No):1151-67. [Medline].
Ashton N. Oxygen and the retinal blood vessels. Trans Ophthalmol Soc U K. Sep 1980;100(3):359-62. [Medline].
Csak K, Szabo V, Szabo A, et al. Pathogenesis and genetic basis for retinopathy of prematurity. Front Biosci. Jan 1 2006;11:908-20. [Medline].
Fielder AR, Shaw DE, Robinson J, et al. Natural history of retinopathy of prematurity: a prospective study. Eye. 1992;6 (Pt 3):233-42. [Medline].
Varughese S, Gilbert C, Pieper C, et al. Retinopathy of prematurity in South Africa: an assessment of needs, resources and requirements for screening programmes. Br J Ophthalmol. Jul 2008;92(7):879-82. [Medline].
Palmer EA, Flynn JT, Hardy RJ, et al. Incidence and early course of retinopathy of prematurity. The Cryotherapy for Retinopathy of Prematurity Cooperative Group. Ophthalmology. Nov 1991;98(11):1628-40. [Medline].
Wallace DK, Freedman SF, Hartnett ME, Quinn GE. Predictive Value of Pre-plus Disease in Retinopathy of Prematurity. Arch Ophthalmol. May 2011;129(5):591-6. [Medline].
Tolsma KW, Allred EN, Chen ML, et al. Neonatal bacteremia and retinopathy of prematurity: the ELGAN study. Arch Ophthalmol. Dec 2011;129(12):1555-63. [Medline].
Lajoie A, Koreen S, Wang L, et al. Retinopathy of prematurity management using single-image vs multiple-image telemedicine examinations. Am J Ophthalmol. Aug 2008;146(2):298-309. [Medline].
Dempsey E, McCreery K. Local anaesthetic eye drops for prevention of pain in preterm infants undergoing screening for retinopathy of prematurity. Cochrane Database Syst Rev. Sep 7 2011;9:CD007645. [Medline].
Repka MX, Hardy RJ, Phelps DL, et al. Surfactant prophylaxis and retinopathy of prematurity. Arch Ophthalmol. May 1993;111(5):618-20. [Medline].
Wu WC, Yeh PT, Chen SN, Yang CM, Lai CC, Kuo HK. Effects and complications of bevacizumab use in patients with retinopathy of prematurity: a multicenter study in taiwan. Ophthalmology. Jan 2011;118(1):176-83. [Medline].
Mintz-Hittner HA, Kennedy KA, Chuang AZ. Efficacy of intravitreal bevacizumab for stage 3+ retinopathy of prematurity. N Engl J Med. Feb 17 2011;364(7):603-15. [Medline].
Cryotherapy for Retinopathy of Prematurity Cooperative Group. Multicenter trial of cryotherapy for retinopathy of prematurity. One-year outcome--structure and function. Arch Ophthalmol. Oct 1990;108(10):1408-16. [Medline].
Early Treatment For Retinopathy Of Prematurity Cooperative Group. Revised indications for the treatment of retinopathy of prematurity: results of the early treatment for retinopathy of prematurity randomized trial. Arch Ophthalmol. Dec 2003;121(12):1684-94. [Medline].
Laser ROP Study Group. Laser therapy for retinopathy of prematurity. Arch Ophthalmol. Feb 1994;112(2):154-6. [Medline].
Phelps DL. Retinopathy of prematurity: an estimate of vision loss in the United States--1979. Pediatrics. Jun 1981;67(6):924-5. [Medline].
Repka MX, Tung B, Good WV, et al. Outcome of eyes developing retinal detachment during the Early Treatment for Retinopathy of Prematurity Study (ETROP). Arch Ophthalmol. Jan 2006;124(1):24-30. [Medline].
Reynolds JD, Hardy RJ, Kennedy KA, et al. Lack of efficacy of light reduction in preventing retinopathy of prematurity. Light Reduction in Retinopathy of Prematurity (LIGHT-ROP) Cooperative Group. N Engl J Med. May 28 1998;338(22):1572-6. [Medline].
Schaffer DB, Palmer EA, Plotsky DF, et al. Prognostic factors in the natural course of retinopathy of prematurity. The Cryotherapy for Retinopathy of Prematurity Cooperative Group. Ophthalmology. Feb 1993;100(2):230-7. [Medline].
Section on Ophthalmology American Academy of Pediatrics, American Academy of Ophthalmology, American Association for Pediatric Ophthalmology and Strabismus. Screening examination of premature infants for retinopathy of prematurity. Pediatrics. Feb 2006;117(2):572-6. [Medline].
Supplemental Therapeutic Oxygen for Prethreshold Retinopathy Of Prematurity (STOP-ROP), a randomized, controlled trial. I: primary outcomes. Pediatrics. Feb 2000;105(2):295-310. [Medline].
The Committee for the Classification of Retinopathy of Prematurity. An international classification of retinopathy of prematurity. Arch Ophthalmol. Aug 1984;102(8):1130-4. [Medline].

