Microphthalmia is a developmental eye disorders resulting in smallnessof one or both eyes with a total axial length at least 2 standard deviationsbelow the mean for that age group. The eye is considered microphthalmicif the total axial length (TAL) is less than 15 mm at birth. Themicrophthalmic eye has an axial length less than 19.2 mm at 1 year ofage. It arises alone or in conjunction with other ocular defects such ascoloboma and orbital cyst. It may be also part of more generalizedsyndromes.Classification of microphthalmia varies according to anatomical, clinicalor etiological aspects with further subdivisions in each type ofclassification.