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  2. Aphakia - Wikipedia

    en.wikipedia.org/wiki/Aphakia

    Aphakia is the absence of the lens of the eye, due to surgical removal, such as in cataract surgery, a perforating wound or ulcer, or congenital anomaly. It causes a loss of ability to maintain focus ( accommodation ), high degree of farsightedness ( hyperopia ), [ 1 ] and a deep anterior chamber .

  3. Farsightedness - Wikipedia

    en.wikipedia.org/wiki/Farsightedness

    Aphakia correction: High degree hypermetropia due to absence of lens (aphakia) is best corrected using intraocular lens implantation. [ citation needed ] Refractive lens exchange (RLE): A variation of cataract surgery where the natural crystalline lens is replaced with an artificial intraocular lens ; the difference is the existence of abnormal ...

  4. Intraocular lens - Wikipedia

    en.wikipedia.org/wiki/Intraocular_lens

    Aphakia is the absence of the natural crystalline lens. The aphakic state is usually due to surgery to remove a cataractous lens, but post-surgical aphakia is rare nowadays because of the ubiquity of intraocular lenses. Rarely, aphakia can be post-traumatic or congenital in nature.

  5. Aniseikonia - Wikipedia

    en.wikipedia.org/wiki/Aniseikonia

    Aniseikonia due to uniocular aphakia is best corrected surgically by intraocular lens implantation. [4] Similarly retinal aniseikonia is corrected by treating causative retinal disease. [4] Note however that before the optics can be designed, first the aniseikonia should be measured.

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  7. Epikeratophakia - Wikipedia

    en.wikipedia.org/wiki/Epikeratophakia

    A lamellar disc from a donor cornea is placed over the de-epithelialized host cornea and sutured into a prepared groove on the host cornea. Indications include treatment of keratoconus, refractive errors like myopia and high hypermetropia including aphakia, which cannot be corrected with conservative methods. [2]

  8. List of irregularly spelled English names - Wikipedia

    en.wikipedia.org/wiki/List_of_irregularly...

    Many of these are degenerations in the pronunciation of names that originated in other languages. Sometimes a well-known namesake with the same spelling has a markedly different pronunciation. These are known as heterophonic names or heterophones (unlike heterographs , which are written differently but pronounced the same).

  9. Couching (ophthalmology) - Wikipedia

    en.wikipedia.org/wiki/Couching_(ophthalmology)

    "Couching for cataract"; Wellcome Collection illustration of Indian doctors performing the technique. Couching is the earliest documented form of cataract surgery. It involves dislodging the lens of the eye, thus removing the cloudiness caused by the cataract, resulting in aphakia.