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2. Alpins method - Wikipedia

   en.wikipedia.org/wiki/Alpins_method

   [1] [2] [3] The Alpins Method is also used to plan cataract/toric intraocular lens (IOL) surgical procedures. [4] The Alpins Method uses vector mathematics to determine a goal for astigmatism correction and analyze factors involved if treatment fails to reach that goal. The method can also be used to refine surgical techniques or correct laser ...

3. What Is a Cataract? These Are the Causes, Symptoms, and ... - AOL

   www.aol.com/lifestyle/cataract-causes-symptoms...

   These Are the Causes, Symptoms, and Treatments of Cataracts. Kimberly Goad. August 28, 2020 at 1:34 PM ... Cataract treatments. Whatever the cause of your cataracts, surgery is the only way to get ...

4. Photorefractive keratectomy - Wikipedia

   en.wikipedia.org/wiki/Photorefractive_keratectomy

   There are also some pre-existing conditions that may complicate or preclude the treatment. [8] Collagen vascular disease (e.g., corneal ulceration or melting) Ocular disease (e.g., dry eye, keratoconus, glaucoma) Systemic disorders (e.g., diabetes, rheumatoid arthritis) History of side effects from steroids; Granular corneal dystrophy type II

5. Astigmatism - Wikipedia

   en.wikipedia.org/wiki/Astigmatism

   Mild astigmatism has a higher prevalence than moderate and significant astigmatisms and increased until the age of 70, while moderate and significant astigmatisms showed an increase in prevalence after the age of 70. [33] Of the levels of astigmatism, mild astigmatism is most prevalent, making up about 82% of the total reported astigmatisms. [33]

6. Refractive error - Wikipedia

   en.wikipedia.org/wiki/Refractive_error

   Other symptoms may include double vision, headaches, and eye strain. [3] Near-sightedness is due to the length of the eyeball being too long; far-sightedness the eyeball too short; astigmatism the cornea being the wrong shape, while presbyopia results from aging of the lens of the eye such that it cannot change shape sufficiently. [3]

7. Limbal relaxing incisions - Wikipedia

   en.wikipedia.org/wiki/Limbal_relaxing_incisions

   Limbal relaxing incisions (LRI) are a refractive surgical procedure to correct minor astigmatism in the eye. Incisions part way through the cornea are made at one side or at opposite edges of the cornea, following the curve of the iris, causing a slight flattening of the cornea in that area. [1]