blindness, low vision presentation. low vision: is 20/70 to 20/200. professional definition...

By Shaina Clark, Kristin Tritch, and Kristi Staton

Blindness, Low Vision Presentation

Low Vision: is 20/70 to 20/200.

Professional Definition

Educational Definition

Blindness is needing to use Braille or aural methods.Low vision is being able to read print that is enlarged or magnified.

Blindness: Visual acuity of 20/200 or less in the better eye with correction

Prevalence

*Blindness is primarily an adult disability

*Less than 0.05% of students from ages 6-17 are identified as visually impaired

Do’s and Don’ts of Teaching

Do’s•Use the students name when calling on him/her•Read out loud what your writing on the board•Give explicit directions•Allow extra time•Feel comfortable using vision words•Encourage independence•Include the visually impaired student in classroom activities•Fill in experiential gaps•Provide extra storage space•Encourage the use of aids/devices

Do’s and Don’ts of TeachingDon’ts

•Be afraid to touch the visually impaired student.•Overprotect•Worry about your initial feelings of awkwardness•Be afraid to require a student’s best work•Be afraid to require good behavior•Hesitate to ask the student what something looks like•Feel you must tolerate unacceptable behavior

How does t

he eye

see?

How is visual ability measured?*Snellen chart*also available for near distances*teacher can observe *functional assessments

Causes*Myopia*Hyperopia*Astigmatism

Conditions affecting both adults and children *Glaucoma*Cataracts*Diabetic retinopathy

Conditions affecting primarily children*Retinitis pigmentosa*Cortical visual impairment*Retinopathy of prematurity

Improper muscle function*Strabismus*Nystagmus

b) macular degeneration

f) glaucoma

g) diabetic retinopathy

e) blindness

d) amblyopia

c) cataract

a) 20/20 Vision

ACTIVIT

Y