Retinopathy of prematurity (ROP) is a vaso-proliferative disorder affecting the retina of premature babies. It is a potentially blinding disease and is now one of the most common causes of life-long vision impairment and blindness in children in middle- income countries like the Philippines.
Retinopathy of Prematurity

OBJECTIVE

This study determined the diagnostic accuracies of Growth and Retinopathy of Prematurity (GROP) criteria and a novel modified G-ROP criteria on identifying retinopathy of prematurity (ROP) in infants referred for screening at a tertiary hospital.

This was a single-center, cross-sectional, retrospective study. Medical records of infants referred for ROP screening from January 2012 to December 2021 were reviewed. Infants were labelled as “requiring ROP examination” if they met the 2020 Philippine Academy of Ophthalmology – ROP Working Group (PAO-ROPWG) screening consensus, G-ROP, or modified G-ROP criteria. We compared the accuracy of each criterion in predicting prethreshold ROP, evaluating sensitivity, specificity, and predictive values, as well as percentage of low-risk infants. Statistical analysis used Chi-square tests and one-way ANOVA with post hoc testing.

Of the 873 infants, 162 infants (18.6%) were noted to have ROP of any stage. Type 1 ROP developed in 15.4%, and type 2 ROP in 16.7%. The 2020 PAO-ROPWG consensus had 100% sensitivity (95% CI: 86.3%- 100%) in detecting type 1 and 2 ROP while 323 infants (37%) were low-risk. G-ROP criteria had 100% (95% CI: 86.3%-100%) sensitivity and 79.2% (95% CI: 76.4%-81.9%) specificity in predicting type 1 ROP, and 88.89% (95% CI: 70.84%-97.65%) sensitivity and 79.1% (95% CI: 76.2%-81.8%) specificity in predicting type 2 ROP, while 672 infants (77%) were classified as low-risk. Modified G-ROP criteria had a 100% (95% CI: 86.3%-100%) sensitivity in predicting type 1 and 2 ROP, 54.9% (95% CI: 51.5%-58.3%) and 55.1% (95% CI: 51.7%-58.5%) specificity in predicting type 1 and type 2 ROP, respectively, while 472 infants (54%) were classified as low-risk.

G-ROP and modified G-ROP criteria showed high sensitivity and better specificity compared to the 2020 PAO-ROPWG consensus. Their stricter criteria for gestational age and birth weight likely enhanced specificity. Further research is needed to confirm these findings in a broader population.

This document offers guidance to help the ophthalmologist plan for the safe resumption of elective surgical care. There are 4 sections: (I) COVID-19 Awareness, (II) Preparedness, (III) Patient Issues, and (IV) Delivery of Safe and High-Quality Care. Each section contains key issues to be addressed before elective surgery may be safely reinstituted. Understanding the capabilities of health facilities (e.g., testing, operating rooms) as well as the potential limitations in manpower and supplies will remain important, while keeping an eye out on subsequent waves of COVID-19.
COVID-19

With the resumption of elective surgeries during this COVID-19 pandemic, surgeons and facilities should implement infection prevention and control measures to ensure the safety of patients and health care workers. This advisory highlights the key principles, risk stratification considerations, and recommended approach regarding Covid-19 testing prior to elective ophthalmic surgeries.
COVID-19

Objective: To assess the level of awareness and practice patterns of pediatricians in various government and private hospitals in the Philippines regarding retinopathy of prematurity (ROP). Methods: This is a prospective, multicenter, cross-sectional study of the practice profile and awareness of pediatricians of the Philippine Pediatric Society (PPS) ROP screening recommendations. Six hundred selfadministered questionnaires were distributed to pediatricians from 40 randomly selected government and private hospitals in the Philippines between July and September 2013. Frequency distribution for each data was noted. Association of referral rates, distribution of barriers, and availability of protocol among the subgroups were analyzed using chi square. Results: A total of 409 eligible surveys were analyzed with a response rate of 68.1%. 92% of the respondents referred their at-risk preterm babies to ophthalmologists for ROP screening. Of those who referred, 57% considered a cut-off value of less than 32 weeks age of gestation, and 45% considered a cut-off value of less than 1500g birth weight. 47% referred at 4-6 weeks post-natal age, and 48% had a protocol for ROP screening. Only 19% were aware of the PPS ROP screening recommendations. The major barrier encountered was the inability of the families to follow up after discharge (41%). Higher referral rates were noted from private institutions (p=0.013) and tertiary hospitals (p=0.019), including those with a protocol on ROP screening (p=0.002). Conclusion Majority of the respondents referred their at-risk preterm babies for ROP screening. A significant proportion was unaware of the PPS ROP screening guidelines. More than half do not have an established protocol. There were variations in practice patterns of the pediatricians in referring babies at-risk for ROP. Based on these, there is still a need to increase awareness among pediatricians. A uniform, national, published guideline on ROP screening, establishment of referral systems, and training of qualified ophthalmologists are recommended.
Retinopathy of Prematurity ; Mass Screening ; Surveys and Questionnaires

Objective: (1) To determine if preterm babies with ROP are missed with the existing Philippine Pediatric SocietyPhilippine Academy of Ophthalmology 2005 screening criteria of ≤32 weeks gestational age (GA) and ≤1,500 grams birth weight (BW), (2) to determine the incidence (missed-out rate) of these babies with ROP (>32 weeks GA, >1,500 grams BW), (3) to describe their profile, and (4) to determine the appropriate upper limit for GA and BW that can provide safe and efficient screening for severe ROP. Methods: This is a multicenter, retrospective cohort, observational study using data on ROP screening from the medical records of preterm babies from 4 institutions. All babies born ≤36 weeks GA, regardless of BW, who previously underwent ROP screening in 2011-2013, were included. Outcome measures were: (1) missed-out rate, (2) profile of missed babies with ROP (GA, BW, and risk factors), and (3) the proposed new criteria. Results Of the 762 babies screened, 105 (13.8%) had ROP. Of these, 13 (12%) had severe ROP, 28 (27%) was born at 33-36 weeks GA, and 32 (30%) with >1,500 grams BW. The oldest and heaviest of these missed babies with type 1 ROP was almost consistently reported at <35 weeks GA and <2,000 grams BW. Associated significant risk factors seen among missed babies were sepsis, respiratory distress syndrome (RDS), oxygen supplementation, and blood transfusion. There were 45 babies (43%) with ROP but with no risk factors. Among these were babies with GA >32 weeks and BW >1500 grams with ROP. The incidences of ROP, with and without risk factors, in the 4 institutions were not statistically significant. Seventeen (16.2%) preterm babies were missed with the existing criteria. Two of these had no risk factors but had type 1 and type 2 ROP. When <35 weeks GA and <2,000 grams BW as the new criteria were applied, the missed-out rate was reduced to 2% and was further reduced to zero with the inclusion of risk factors.
Retinopathy of Prematurity ; Mass Screening