abnormally small eyeball; also called microphthalmos

The congenital abnormal smallness of one or both eyes. Can occur in the presence of other ocular defects.

abnormally small size of eye.

a congenital small, disorganized eye.

Congenital defect resulting in an abnormally small eye or eyes. The cause is usually unknown. Microphthalmia typically results in blindness or reduced vision, but normal vision is possible if the eyes are nearly normal in size.

An abnormally small eye , a congenital malformation (birth defect) of the globe. See the entire definition of Microphthalmia

An abnormally small eye. Anophthalmia is complete absence of an eye.

Congenital disease in which the eyeball never fully developed

Abnormally small eye, usually blind. Most commonly seen in homozygous merles.

Microphthalmia means small eyes. In mammals the failure of expression of a transcription factor, MITF (microphthalmia-associated transcription factor), in the pigmented retina prevents this structure from fully differentiating. This in turn causes a malformation of the choroid fissure of the eye, resulting in the drainage of vitreous humor fluid.