LOW VISION REHABILITATION Tips for Independence Avani Patel, O.D., F.A.A.O. Private Practice: Los Alamitos, CA (562) 430-6161 Hospital: Long Beach Memorial Med. Center (562) 933-0123
July is UV Awareness Month
Ultra-violet exposure is linked to eye damage including: Cataracts, Age-Related Macular Degeneration, Pterygium, Photokeratitis, Melanomas.
Make sure all sun wear has UV-A and UV-B protection
Impairment of vision that significantly impairs how an individual functions.
Vision cannot be corrected adequately with medical, surgical therapy or conventional glasses/contact lenses.
Individual may experience loss of central vision, peripheral vision, distorted vision, double vision, glare sensitivity and loss of contrast.
Low Vision services do not “cure” the problem, but enable an individual to maximize their remaining sight so they can function as independently as possible.
Low Vision care does NOT replace the need for concurrent ophthalmological treatment.
Low Vision Rehabilitation is a collaborative approach to helping individuals.
Low Vision- A Collaborative Effort
O&M, ILS, ,Lighting Specialists
Teachers for the Visually Impaired
Certified Diabetic Educators
The World Health Organization ( WHO ) uses the following classification of visual impairments. When the vision in the better eye with the best possible glasses or contacts lens correction is: 20/30 to 20/60 considered mild vision loss or near normal 20/70 to 20/160 considered moderate 20/200 to 20/400 considered severe 20/500 to 20/1000 considered profound < 20/1000 considered near total blindness NO light perception considered totally blind ALSO: any person not correctable to better than 20/200 in best eye or with < 20 degrees of visual field is considered LEGALLY BLIND.
Low Vision Rehabilitation
Currently there is no treatment option to completely restore lost vision.
For many patients, the hardest challenge is adapting to life with vision impairment.
However, by retraining the visual system, modifying one’s environment, and learning to use low vision aids/technology, one can continue to maintain their sense of independence
Common Types of Vision Impairment
Loss of Central Vision
Loss of Peripheral Vision
Diplopia (Double Vision)
Loss of Contrast Sensitivity
Eye Care Professionals 1. Ophthalmologist (M.D.) 2. Optometrist (O.D.)
THE LOW VISION EYE DOCTOR
Low Vision Specialists are licensed Doctors of Optometry or Ophthalmology, who are skilled in examining and managing patients whose vision cannot be corrected with conventional means.
Low Vision is a team approach involving specialists in many areas from vision to rehabilitation.
Low Vision doctors may prescribe the following aids:
Custom made prescription eyewear
Tints/filters to reduce glare or enhance contrast
Prisms to reduce double vision
Telescopic & Microscopic eyewear,
Electronic adaptive aids, video magnifiers
Specialized computer software programs
Independent Living Skills, Orientation Mobility Skills,
Low Vision Exam- A Critical Component
Not a regular eye exam with reading the distance eye chart.
It is a FUNCTIONAL assessment of how an individual works with the vision they have (sight at different distances is measured i.e. faces, stove dials, small print, street signs...)
Evaluate blurry/blindspots in the visual field, contrast sensitivity, extent of color vision, glare tolerance, double vision, visual/cognitive processing, eye tracking…
It is tailored to each individual’s need
The Low Vision Exam A. Distance VA B. Near VA C. Visual Fields D. Depth Perception E. Color Vision Testing D. Contrast Sensitivity E. Lighting F. Glare Sensitivity G. Trial frame refraction H. Response to magnification / Determination of Aids I Visual / Perceptual Testing ( if applicable ) J. Ocular health exam
LOW VISION AIDS A. Spectacle Correction B. Contact Lenses C. Prisms D. Filters E. Telescopes - Monoculars - Binoculars - Sportoculars - Bioptic TS - Galilean VS Keplarian - Ocutech autofocus