Persistent pupillary membrane (PPM) is a frequently encountered congenital anomaly. It represents remnants of anterior tunica vasculosa lentis and appears as strands of connective tissue bridging the pupillary area. They are usually asymptomatic and …

Dec 15, 2022 · Persistent pupillary membrane is the medical term for extra tissue that covers some or all of an infant’s pupil. It’s a type of congenital eye condition — an issue that affects a child’s eyes from birth.

Dec 5, 2023 · Persistent Pupillary Membrane (PPM) is a congenital eye condition characterized by remnants of a fetal membrane that persist in the eye. It can impact vision and is classified into three types: Type 1, Type 2, and Type 3, with varying severity.

Persistent pupillary membrane (PPM) is a condition of the eye involving remnants of a fetal membrane that persist as strands of tissue crossing the pupil. The pupillary membrane in mammals exists in the fetus as a source of blood supply for the lens .

Oct 6, 2014 · Persistent pupillary membranes represent incomplete regression of the tunica vasculosa lentis, which normally involutes by the sixth month of gestation. When this process is incomplete, strands of connective tissue may attach to the iris collarette.

Persistent pupillary membranes (PPMs) are a common congenital anomaly seen in 95% of neonates. Extensive PPMs, occluding the visual axis and resulting in reduced visual acuity, are relatively uncommon.

The persistent pupillary membrane (PPM) is a common ocular condition that, while often benign, can occasionally lead to visual impairment. It is characterized by remnants of the fetal membrane that persist after birth, traversing the pupil to varying extents.

Persistent pupillary membrane (PPM) represents a common congenital ocular anomaly that appears as fine iris strands along the pupil, which are remnants of anterior tunica vasculosa lentis that supplies nutrition to the lens in the first six month of fetal life .

Apr 20, 2021 · Persistent pupillary membranes is a congenital condition with remnants of the blood vessels to the fetal lens (tunica vasculosa lentis). In most patients, it does not affect vision, although it may lead to earlier development of cataract. .

Persistent pupillary membrane (PPM) is a common congenital abnormality of the iris, found as at least a remnant in 30% to 95% of healthy normally sighted adults. 1 Although diaphanous PPMs typically regress in the first year of life, remnants often persist in adults.