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Conjunctivitis (Pink Eye)

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Conjunctivitis, also known as pinkeye, is an inflammation of the conjunctiva. The conjunctiva is the thin clear  tissue that lies over the white part of the eye and lines the inside of the eyelid. Children get it a lot. It can be highly contagious (it spreads rapidly in schools and day-care centers), but it’s  rarely serious. It's very unlikely to damage your vision, especially if you find it and treat it quickly.  When you take care to prevent its spread and do all the things your doctor recommends, pinkeye clears  up with no long-term problems. what cause Pink eyes?                                                                    Several things could be to blame, including: Viruses, including the kind that causes the common cold Bacteria Irritants such as shampoos, dirt, smoke, and pool chlorine A reaction to eye drops An   allergic reaction   to things like pollen, dust, or smoke. Or it could be due to a special type of allergy                      that affects some people wh
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Orthokeratology

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  What Is Orthokeratology? ·                Temporary  correction of refractive power ·                Use of rigid gas permeable lenses. ·                 Also known as corneal reshaping, Corneal Refractive Therapy (CRT), Vision Shaping Treatment (VST)   History ·        Early 1960s §   “Orthofocus” §   Average reduction 1.00-1.50D with large variability ·         Limitations §   Lack of long term data §   Keratometry reading only §   Use PMMA lenses §   Effects take weeks to months §   Multiple lens treatment ·        Modern Day Ortho- K §   FDA approval:2002 v Overnight wear and correction of myopia §   Materials v Hyper- DK materials for overnight wear §   Myopia control §   RGP Design v Flatter conventional GP vs reverse geometry §   Use of corneal topography ·         Reverse Geometry Design §   Multi- zone design v 3 or 4 curve design v Secondary curve steeper than base curve ·         Improved treatment centration ·         Improved predictability   How does ortho-k work?
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