Alcon AquaComfort Plus handleiding

Handleiding

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Criteria of a Well-Fitted Lens

A well-tted DAILIES

®

(nellcon A) One-Day Contact Lens has the following

characteristics:

1. Good centration with full corneal coverage in all elds of gaze

2. Sufcient movement to allow tear exchange under the lens

  duringtheblink;0.1to0.5mmisgenerallyconsideredoptimal.

3. Satisfactory Push-Up Test

  • Thistestisareliableindicatorofagoodt.Withthepatient

looking straight ahead, place your index nger on the patient’s

lower lid margin and gently nudge the edge of the lens upward.

  • Awell-ttedlenswillmovefreelywhenpushedupwardwith

ngertip pressure and return quickly to its original position.

4. Good comfort and stable visual response (with over-refraction)

Characteristics of a Tight (Steep) Lens Fit

A tight or steep lens t would display some or all of the following

characteristics:

1. Insufcient or no lens movement during the blink in primary or

upgaze

2. Unsatisfactory Push-Up Test

•A tight tting lens will resist movement. If successfully

nudged upward, the lens may remain decentered or return

slowly to its original position.

3. Good centration

4. Good comfort

5. Fluctuating vision between blinks

Characteristics of a Loose (Flat) Lens Fit

A loose or at lens t would display some or all of the following

characteristics:

1. Reduced comfort, usually accompanied by lower lid sensation

2. Poor centration with limbal exposure on exaggerated eye movement

3. Lens edge standoff

4. Excessive lens movement during the blink in primary or upgaze

5. Unsatisfactory Push-Up Test

  • Aloosettinglenswillmoveeasilybutmayremaindecenteredor

slip under the upper lid.

6. Vision may be blurred after the blink

An inverted lens will mimic the characteristics of a loose lens. If any of the

above signs occur remove the lens and check to make sure it is not inverted.

General Fitting Tips

 • Whilehelpfulformonitoringcornealstabilityovertime,keratometry

is not a reliable predictor of base curve/t relationship. Trial tting of

the individual eye is strongly recommended.

 • Awell-ttinglenswillshowlessmovementthangenerallythought,

0.1 to 0.5 mm is considered optimal.

 • A at base curve/cornea relationship may actually show limited

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Bekijk gratis de handleiding van Alcon AquaComfort Plus, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.

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