Does the method change depending on age? When is the right time to change the additional lenses?
FAQ n. 39 - Power Vision System - I’ve identified three people who seem to be interested and motivated to carry out the Power Vision visual rehabilitation program. All three cases have the following training schedule:Ocular stretching three days per week, three times per day, wearing positive +2.50 lenses on each eye in all activities that allow it (reading, working at computer).
a. Marco (my son): –6.25 right eye (RE) –5.50 left eye (LE) (asymmetry due to keratoconus). After having trained for four weeks, now he usually wears –5.50 RE and –4.75 LE and according to Snellen tables he has full sight now, even though after working(viewing within 10 feet distance) he notices some worsening. He is the only one who doesn’t do any exercise regarding fogging/retinal defocus.
a. Does the method change depending on age?
b. Should I correct the training schedules of my three samples?
c. When is the right time to change the additional lenses? Should they stay the same? Should both myopes and hyperopes always wear the additional lenses in near viewing (a kind of everlasting visual hygiene)?
d. Marco has told me that he feels better (and sees better) wearing his present glasses. When is the right time to change graduation for distant viewing?
- Answers David De Angelis
Entire ocular capabilities must be used so as to maintain ocular strength, flexibility, and coordination correctly. It can’t happen if the sight and its capabilities are imprisoned within a limited visual field, as happens when we view through the framework of our glasses.
a. The results differ not so much depending on someone’s age as on the time she’s been wearing glasses (for how long a time her focusing has been “frozen” and helped with lenses, causing “disuse” or functional atrophy due to misuse).
b. It’s okay to carry out ocular stretching exercises three days per week and three times per day, but you should make your “samples” understand that muscular work at maximum ocular range must become their ordinary viewing. That’s why they must acquire the healthy habit of short ocular rotations while relaxing in the morning, like while brushing their teeth. Keep insisting on the exercises of ocular stretching, fixing at a steady point and at the extreme parts of the visual field. Do your best to make your “samples” carry out the exercises correctly, gradually increasing the rotation width and staying on the parts of the visual field where the work is very hard, due to “blocks” (at those places where muscular strength, flexibility, and coordination are limited).
As long as we are chronically subjected to overaccommodative stress (near-point stress) without counterbalancing it with distant viewing, it will be necessary to use positive lenses for the purpose of prevention and maintenance. Even only 1 diopter positive “leisure” lenses can prevent myopia development, when we become emmetropes.
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