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انواع لنزهای تماسی - مرکز چشم پزشکی دکتر علیرضا نادری

انواع لنزهای تماسی

انواع لنز تماسی

  لنز های تماسی به طرق مختلفی تقسیم بندی می شوند: 

 

۱- بر اساس نوع ماده ای که لنز از آن ساخته شده است به دو نوع تقسیم می شوند:

 

الف – لنزهای تماسی نرم Soft contact lenses

 

ب – لنزهای تماسی سخت نافذ اکسیژن Rigid gas permeable (RGP) contact lenses

  ۲- بر اساس اصلاح نوع عیوب انکساری به سه گروه تقسیم می شوند:

 

الف- کروی (برای اصلاح دور بینی و یا نزدیک بینی)

 

ب- توریک (برای اصلاح آستیگماتیسم)

 

ج- دو کانونی (برای اصلاح پیرچشمی)

۳- بر اساس برنامه زمانی استفاده از آنها، به دو گروه تقسیم می شوند:

 

الف- لنزهای روزانه Daily Wear

 

ب- لنز های طولانی مدت یکبار مصرف Disposables

 

۴- بر اساس رنگ به دو گروه تقسیم می شوند:

 

الف- لنزهای رنگی زیبایی Cosmetic tints

 

ب- رنگ زمینه های لنز برای بهتر دیده شدن آن بهنگام گذاشتن و برداشتن Visibility tints

  مواد پلاستیکی مختلفی برای ساخت لنزهای تماسی استفاده می شود، اما اساسا دو نوع لنز تماسی وجود دارد: سخت و نرم.

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