The CLAO journal : official publication of the Contact Lens Association of Ophthalmologists, Inc · 1998
An analysis of the accuracy of predicted corneal acuity in the Holladay diagnostic summary program.
Клиническое исследованиеСравнительное исследованиеКонтролируемое клиническое исследованиеСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Weiss J S, Oplinger N L
Аннотация
PURPOSE: To determine the accuracy of the predicted corneal acuity (PCA) as determined by the Holladay diagnostic summary corneal topography program, if the cornea is the limiting factor in vision and the posterior segment is normal.
METHODS: We compared the PCA with the best corrected visual acuity (BCVA) in 10 normal eyes and 10 eyes with corneal abnormalities, including prior penetrating keratoplasty, corneal scarring, and keratoconus.
RESULTS: The PCA was consistent with the BCVA in all 10 of the normal eyes. The PCA was less consistent with the BCVA in all eyes with corneal abnormalities. The PCA was least accurate in patients with high amounts of irregular astigmatism and/or low corneal uniformity indices.
CONCLUSIONS: The PCA appears to be most useful in predicting the BCVA in patients with normal corneas but is less effective in predicting the BCVA in patients with corneal abnormalities.
METHODS: We compared the PCA with the best corrected visual acuity (BCVA) in 10 normal eyes and 10 eyes with corneal abnormalities, including prior penetrating keratoplasty, corneal scarring, and keratoconus.
RESULTS: The PCA was consistent with the BCVA in all 10 of the normal eyes. The PCA was less consistent with the BCVA in all eyes with corneal abnormalities. The PCA was least accurate in patients with high amounts of irregular astigmatism and/or low corneal uniformity indices.
CONCLUSIONS: The PCA appears to be most useful in predicting the BCVA in patients with normal corneas but is less effective in predicting the BCVA in patients with corneal abnormalities.