Pediatric eye health is a critical aspect of a child’s life and development. Good vision is not just about clarity […]
Background.
Convergence-accommodation is the synkinetic change in accommodation driven by vergence. A few studies have investigated the static and dynamic properties of this cross-link in adults but little is known about convergence-accommodation in children. The purpose of this study was to develop a technique for measuring convergence-accommodation and to study its dynamics (gain and movement time) in a sample of pre-school children.
Method.
Convergence-accommodation measures were examined on thiry-seven normal pre-school children (mean age = 4.0 ± 1.31 yrs). Stimulus CA/C (sCA/C) ratios and movement time measures of convergence-accommodation were assessed using a photorefractor while subjects viewed a DOG target. Repeated measures were obtained on eight normal adults (mean age = 23 ± 0.2 yrs).
Results.
The mean sCA/C ratios and movement times were not significantly different between adults and children (0.10 D/Δ [0.61 D/M.A.], 743 ± 70 ms and 0.11 D/Δ [0.50 D/M.A.], 787 ± 216 ms). Repeated measures on adults showed a non-significant mean difference of 0.001 D/Δ.
Conclusion.
The results suggest that the possible differences in crystalline lens (plant) characteristics between children and adults do not appear to influence convergence-accommodation gain or duration.
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Dr. Kavner recommended two types of eye therapy for my daughter. One of them using bio-feedback. In just three sessions she is seeing considerably better. She shouted this morning: Ooh my God! I could not see these letters with my glasses on, and now I can see them without my glasses. If you are willing and able to invest in improving your vision, this is a good place to go to!
I have always found Dr Kavner's work, expertise and wisdom of the highest caliber. As one of the fathers of OT, occupational othomology, his depth and breadth of knowledge about the eyes' health and wellbeing of the patient is exemplary. Cannot say enough good things about him.
Pediatric eye health is a critical aspect of a child’s life and development. Good vision is not just about clarity […]
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