Inclusion Criteria:  Children previously enrolled in BabySTEPS1 (Pro00069721) that have already consented to being contacted for this school age follow on study, Cohort 1 only Parent/Legal Guardian is able and willing to consent to study participation with follow up approximately between 4.5 and 5 years of age (consent available in Spanish* and English) (SA 1 only) Parent/Legal Guardian is able and willing to consent to study participation for the infant (SA 2 and 2c only) Infant/child undergoing clinically-indicated examination under anesthesia that may or may not have eye pathology (SA 2 only) Infant inborn or outborn at (SA 2 only): Duke Hospital (Years 1, 2 and 3) with birth weight ≤1000 grams, and/or 20 0/7 to 28/ 6/7 (<29 weeks) gestational age Duke Hospital (Years 1, 2 and 3) at high risk to require treatment for ROP irrespective of birth weight and gestational age (e.g. pre-plus, severe ROP in zone 1, APROP, etc.) Duke Regional Hospital (Years 4 and 5) that meets the American Association of Pediatrics eligibility of ROP screening (Infants with a birth weight of ≤1500 g or gestational age of 30 weeks) Adults (over the age of 18 years) that may or may not have eye pathology (SA 2 only)  Exclusion Criteria:  Participant or Parent/Legal Guardian unwilling or unable to provide consent Adult participant or infant/child has a health or eye condition that preclude eye examination or retinal imaging (e.g. corneal opacity such as with Peter's anomaly or cataract) (SA2 only) Infant has a health condition, other than prematurity, that has a profound impact on brain development (e.g. anencephaly) (SA2 only)