Microspherophakia is a rare congenital autosomal recessive condition where the lens of the eye is smaller than normal and spherically shaped. This condition may be associated with a number of disorders including Peters anomaly, Marfan syndrome, and Weill–Marchesani syndrome. The spherical shape is caused by an underdeveloped zonule of Zinn, which doesnt exert enough force on the lens to make it form the usual oval shape. It is a result of a homozygous mutation to the LTBP2 gene. See also
Ectopia lentis

References
Further reading
Microspherophakia at Online Mendelian Inheritance in Man


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Microvasculitis refers to a range of diseases or presentations associated with a disease, where there is inflammation of small blood vessels:

Kawasaki disease
Susac syndrome

Nerve microvasculitis
Non-systemic vasculitic neuropathy (NSVN)
Hepatitis C-related cryoglobulinemia neuropathy (CRYOVASC)
Hepatitis B-associated PAN
Diabetic lumbosacral radiculoplexus neuropathy (DLRPN)
Non-diabetic lumbosacral radiculoplexus neuropathy (LRPN)
Diabetic cervical-radiculoplexus neuropathy (DCRPN)
Diabetic Cranio-Cervico-Radiculoplexus Neuropathy
Diabetic Cervical Neuropathy


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