week 5: visual impairments

What % of people with developmental disabilities have significant ocular disorder?

50–67%.

What causes ROP? Retinopathy of prematurity

Vascular damage in premature infants.

What is CVI?Cortical visual impairment

Visual impairment from brain injury/oxygen loss → poor attention.

Typical walking age in VI children?

~20 months.

What sport was invented for blind veterans and is now Paralympic?

Goalball.

Conductive HL affects which part of the ear?

Outer/middle ear.

Sensorineural HL affects?

Inner ear/nerve pathways.

Most common hereditary pattern?

Autosomal recessive.

What percentage of Deaf children have hearing parents?

~90%.

What defines Deaf culture?

Language (sign), values, norms, identity, traditions.

Name two amputation causes.

Trauma, vascular disease.

What is the biggest motor implication?

Prosthetic function + balance.

What age group gets TBI most from abuse?

Children <1 yr.

What is diffuse axonal injury?

Widespread shearing of white matter tracts.

What is neurocognitive stall?

When development stops progressing 1yr post injury.

Which type of SCI includes tumours and infections?

Non-traumatic SCI.

Why does lesion level matter?

Higher lesion = less overall motor function.