interferences to safety needs due to sensory deprivation and aging 2009
TRANSCRIPT
SIGHTEDCHILD
VISUALLYIMPAIREDCHILD
Response to objects
Eye contact
Body imagedevelopment
Motor function
Crawling
How learns
HOW TO DETECT VISUAL IMPAIRMENT IN INFANT
REHAB OF VISUALLY IMPAIRED CHILD
GRIEVING Play
Overprotection Feeding
Sensorimotor stimulation Safety
Bonding
Speed of Development
Touch
Mobility
COURTESIES TO BLIND HOSPITALIZED PATIENT
CATEGORY WHAT TO DO
Environment
walking
What to say to pt as enter room
Words like “see”
Touching pt
Object in room
Food tray
DIAGNOSTIC EVALUATIONDIAGNOSTIC EVALUATION PURPOSETonometry
Tonography
Gonioscopy
slit lamp
opthalmoscopic exam
A scan ultrasound (echography)
GLAUCOMA
• What is the major characteristic of this disorder?
• How does this impair vision?
• What situations increase intraocular pressure normally?
• Why don’t we all get increased intraocular pressure?
Primary open angle glaucoma
• What happens to the outlflow of aqueous humor?
• How does this effect intraocular pressure?
Angle closure glaucoma
• What changes occur to the iris?
• With these changes what happens to the outflow of aqueous humor?
COMPARISON OF EARLY AND LATE SYMPTOMS OF GLAUCOMA
EARLY SIGNS AND SYMPTOMS
LATE SIGNS AND SYMPTOMSvisual fieldsvisual acuityAround lightspain
TWO TYPES COMPARED
PRIMARY OPEN ANGLE• With progressive
changes what happens to aqueus humor?
• Tonometry reading:
ANGLE CLOSURE• OTHER NAMES:
• EMERGENCY • When must the pt be
treated? • What happens if they
aren’t treated? • Tonometry reading:
DRUGS: MIOTICS• Miotics: do what?
• pilocarpine hydrochloride (Isopto Carpine, Pilocar, Spersacarpine, Akarpine, Pilopine): enhances aqueous outflow
• carbachol (Carboptic, Carbastat)Isopto Carbachol, Miostat): may be used with or in place of pilocarpine
PUPIL SIZE(MIOSIS)
IOP
OUTFLOW AQUEOUS HUMOR RELIEF OF GLAUCOMA
DRUGS: CARBONIC ANHYDRASE INHIBITORS:
How do the Carbonic anhydrase inhibitors treat glaucoma?
EXAMPLES: • acetazolamide (Acetazolam, Diamox)• brinzolamide (Azopt), • dorzolamide (Trusopt)• Methazolamide (Neptazane)
ALERT ALERT ALERT ALERT ALERT!Drug interactions:• Digitalis, Steroids, Diuretics, Lithium
DRUGS: SYMPATHOMIMETICS
How do SYMPATHOMIMETICS treat glaucoma?EXAMPLE:• brimonidine (AlphaganP)• apraclonidine (Iopidine)• epinephryl ( Epifrin, Glaucon),• dipivefrin HCl (Propine)PRECAUTIONS with soft contact lenses?DRUG COMBINATION CONCERNS?
DRUGS: OSMOTIC DIURETICS
OSMOTIC DIURETICS:How does this treat glaucoma? What situations is this used?
EXAMPLE: oral glycerin (Osmoglyn)IV mannitol (OsmitrolOr topically: glycerin (Ophthalgan)
DRUGS: BETA ADRENERGIC BLOCKERS
How do they treat glaucoma?How do they effect the pupil?ALERT ALERT:WHAT MAJOR PRECAUTION MUST BE USED
WITH ORAL BETA BLOCKERS AND CALCIUM CHANNEL BLOCKERS?
EXAMPLES: (what letters do all these drugs have in common?levobunolol HCl (Betagen Liquifilm)betaxolol HCl (Betoptic)metipranolol HCl (Metipranolol, OptiPranolol)carteolol HCl (Ocupress)timolol (Betimol, Timoptic)levobetaxolol (Betaxon)
DRUGS: Alpha 2 Adrenergic Agonist
• HOW DO THESE DRUGS MANAGE GLAUCOMA?Dilate pupil, decrease aqueous production at the ciliary body,
inhibit production of aqueous, but they can also facilitate the outflow of aqueous from the eye
EXAMPLES: • brimonidine tartrate ( Alphagan):
• ALERT: • cannot combine with MAOI (monoamine oxidase inhibitor)• Can precipitate hypertensive crisis• Cannot be used with contact lens; wait 15 minutes before
inserting after administration
DRUGS: PROSTAGLANDIN AGONIST
HOW DO THESE TREAT GLAUCOMA?• What does it do to the outflow of aqueous fluid?• How does it effect aqueous fluid production? EXAMPLES OF DRUGS: • ****latanoprost (Xalatan)• travoprost (Travatan): not to be used with pregnancy• bimatoprost (Lumigan)• unoprostone isopropyl (Rescula)WHAT DO ALL THESE DRUGS HAVE IN COMMON IN
TERMS OF EFFECTING THE IRIS?
POSTOP NURSING CARE
• Where is the procedure done?• How long do patients stay? • What precautions should be taught to the
client?• How is the eye protected?• What should be reported to the doctor? • What complications occur? • What assessments indicate complications?
POSTOP NURSING CARE CONTINUED
• AVOID ASA : why?• What is effective for pain control? • What is used prophylactically for 5 days? • What is used for several weeks to reduce
inflammation and prevent scarring?• Why avoid reading ?• What should they wear forever? wear medic
alert• What medical care do they need routinely?
ASSESSMENTS
• How is vision changed? • How do objects appear? • What happens when pt is faced with bright
light? • Is there pain? • How does the lens appear?
TREATMENT• When does the pt need surgery? Pt chooses
to have surgery when the loss of vision interferes with life and safety
• Where is the surgery done? Done with local, short stay hospital
• What is done surgically? lens is extracted• What is given on surgical day?• Why does the client receive oral
acetazolamide (Acetazolam )?
TYPES OF CATARACT SURGERY
• Extracapsular - incision through schlera, lens capsule excised, lens is expressed by pressure; most popular
• Intracapsular extraction - remove lens and capsule that encases it; rare today
• Phacoemulsification - extracapsular; small incision, uses high frequency ultrasound device, breaks up lens, aspirate it, irrigation
TYPES OF SURGERY FOR CATARACTS
• Intraocular lens implant: prosthetic lens implant inserted after any type of extraction; good for pt over 65 who has arthritis who cannot manage contact lens insertion
POSTOP NRSG CARE/ TEACHING
• What medications are given subconjunctivally? • How is the eye protected? • When is the client discharged?• When does the client return to see the doctor who
instills what drugs? • When assessing the eye what would you see? • What pain level is felt by the client? • What drugs should be avoided? • What should be taught to client to report? • When will sight changes be noted by pt?
RETINAL DETACHMENT
• NORMALLY WHAT DOES RETINA DO?
• WHAT HAPPENS WHEN THERE IS A DETACHMENT?
• Who is more at risk for this?
ASSESSMENT INDICATING RETINAL DETACHMENT
• What do pts see suddenly?• How is sight effected? • How quickly does this occur
SURGICAL TREATMENT
Same day surgery with general anesthesia• laser photocoagulation: scar tissue formed to
closed the leakage• schleral buckling: silicone buckle sutured into
schlera supports the breaks in retina
POSTOP NURSING CARE DISCHARGE TEACHING
• How is the eye protected? • What activity is allowed?• Why is the client positioned on his or her
abdomen if gas or oil has been used during surgery?
• How will the client feel postop? • What should be avoided?
CAUSED BY
• Damage to or occlusion of the blood vessels that nourish the retina as a result of inadequate blood glucose control
• Weakened vesels become hyperpermeable and leak causing microhemorrhages
• Observe for cloudy or hazy vision of sudden onset
• TREATMENT: laser surgery to close leak
DRY TYPE
• DRY TYPE CAUSED BY: degeneration from age, retinal cells become ischemic, leads to blurring and distortion, with central vision declining seen with smokers
PREVENTION: use of antioxidants, carotenoids lutein and zeaxanthin
WET TYPE
• Sudden decrease in vision• Seen after serous detachment of pigment
peithelium in the macula• Newly formed blood vessels invade the area,
fluid and blood collect under the macula like a blister
ENUCLEATION
• Surgical removal of the entire eyeball• A ball implant is inserted as a base for the
socket prosthesis• This is covered with tissue, muscles• See p 1107 for insertion and removal of ocular
prosthesis
KEY CONCEPTS FOR CLIENTS WITH EYE AND VISION PROBLEMS
• Safe effective Care Environment• Health Promotion and Maintenance• Psychosocial Integrity• Physiologic Integrity
ASSESSMENTS SEEN
• Incapacitating vertigo• fluctuating hearing loss• Tinnitus, nystagumus• Nausea and vomiting• not central nervous system or brain disease• cause is unknown• episodic
NONSURGICAL TREATMENT
DIET: low Na dietDRUGS: ANTIHISTAMINES- helps with vertigo • Diphenhydramine hydrochloride (Benadryl) • Dimenhydrinate (Dramamine)
Medication support
What class of drugs to decrease the fluid?Why use nicotinic acid?What SEDATIVE is used and why?What class of drugs are these and what are they
used for? chlorpromazine hydrochloride (Thorazine), trimethobenzamide hydrochloride (Tigan)
SURGICAL TREATMENT
• Endolymphatic sac decompression - shunt used to drain the extra fluid
• Middle and inner ear perfusion of antibiotics - done during overnight stay in hospital; use gentamycin, streptomycin
• Vestibular Nerve resection - pt has already lost hearing, nerve is cut, stops vertigo, brief hospital stay