Comparison of preoperative and postoperative intraocular lens power values in eyes with Keraring implantation
AIM: To evaluate intraocular lens power(IOL)calculation and biometry before and 3mo after implantation of Keraring 355° intrastromal corneal ring segment(ICRS; Mediphacos, Belo Horizonte, Brazil)in keratoconic eyes.<p>METHODS: In this cohort study, data of 19 keratoconus eyes of 18 patients wh...
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| Format: | Article |
| Language: | English |
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Press of International Journal of Ophthalmology (IJO PRESS)
2017-07-01
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| Series: | Guoji Yanke Zazhi |
| Subjects: | |
| Online Access: | http://ies.ijo.cn/cn_publish/2017/7/201707001.pdf |
| _version_ | 1818841722386382848 |
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| author | Khosrow Jadidi Saman Mohazzab-Torabi Farhad Nejat Shiva Pirhadi Hossein Aghamollaei |
| author_facet | Khosrow Jadidi Saman Mohazzab-Torabi Farhad Nejat Shiva Pirhadi Hossein Aghamollaei |
| author_sort | Khosrow Jadidi |
| collection | DOAJ |
| description | AIM: To evaluate intraocular lens power(IOL)calculation and biometry before and 3mo after implantation of Keraring 355° intrastromal corneal ring segment(ICRS; Mediphacos, Belo Horizonte, Brazil)in keratoconic eyes.<p>METHODS: In this cohort study, data of 19 keratoconus eyes of 18 patients which undergone ICRS implantations were gathered before and 3mo after surgery. Uncorrected visual acuity(UCVA), best corrected visual acuity(BCVA), manifest refraction, IOL power calculation formulas, axial lenght(AL)and keratometry were analayzed.<p>RESULTS: Mean age of participants was 29.58±0.6. UCVA improved from 0.84(0.35)logMAR to 0.43(0.31)logMAR significantly(<i>P<</i>0.001). BCVA and AL didn't change significantly after 3mo. All Sphere, cylinder and spherical equivalent(SE)were improved significantly(<i>P<</i>0.001). On the other hand, keratometry 1(K1)and keratometry 2(K2)decreased significantly. It was a considerable change in SRK/Ⅱ(<i>P<</i>0.001), Hoffer Q(<i>P<</i>0.001)and Holladay Ⅰ<i>(P<</i>0.001)after 3-month's follow-up. Among this formula SRK/II had the lowest change.<p>CONCLUSION: In addition to improvement in visual, refractive, and keratometry outcomes after Keraring implantation, there was a significantly changes in IOL calculation formulas values. However, ICRS procedure doesn't interfere considerably AL in eyes, but it seems reduced keratometric values lead to IOL power calculations more accurately and all formulas suggested same IOL power. |
| first_indexed | 2024-12-19T04:30:36Z |
| format | Article |
| id | doaj.art-bbdfedc96e764d68a85eb1b7bfb97475 |
| institution | Directory Open Access Journal |
| issn | 1672-5123 1672-5123 |
| language | English |
| last_indexed | 2024-12-19T04:30:36Z |
| publishDate | 2017-07-01 |
| publisher | Press of International Journal of Ophthalmology (IJO PRESS) |
| record_format | Article |
| series | Guoji Yanke Zazhi |
| spelling | doaj.art-bbdfedc96e764d68a85eb1b7bfb974752022-12-21T20:35:53ZengPress of International Journal of Ophthalmology (IJO PRESS)Guoji Yanke Zazhi1672-51231672-51232017-07-011771197120110.3980/j.issn.1672-5123.2017.7.01Comparison of preoperative and postoperative intraocular lens power values in eyes with Keraring implantationKhosrow Jadidi0Saman Mohazzab-Torabi1Farhad Nejat2Shiva Pirhadi3Hossein Aghamollaei4Department of Ophthalmology, Baqiyatallah University of Medical Sciences, Tehran 19395-5487, Iranengineering, Science and research branch, Islamic Azad University, Tehran 193793-4943, IranNoor Ophthalmology Research Centre, Tehran 196865-3111, Iran Vision Health Research Center, Tehran 147367-4911, Iran Department of biomedical engineering, Science and research branch, Islamic Azad University, Tehran 193793-4943, Iran Young Researchers and Elites Club, North Tehran Branch, Islamic Azad University, Tehran 193793-4943, IranAIM: To evaluate intraocular lens power(IOL)calculation and biometry before and 3mo after implantation of Keraring 355° intrastromal corneal ring segment(ICRS; Mediphacos, Belo Horizonte, Brazil)in keratoconic eyes.<p>METHODS: In this cohort study, data of 19 keratoconus eyes of 18 patients which undergone ICRS implantations were gathered before and 3mo after surgery. Uncorrected visual acuity(UCVA), best corrected visual acuity(BCVA), manifest refraction, IOL power calculation formulas, axial lenght(AL)and keratometry were analayzed.<p>RESULTS: Mean age of participants was 29.58±0.6. UCVA improved from 0.84(0.35)logMAR to 0.43(0.31)logMAR significantly(<i>P<</i>0.001). BCVA and AL didn't change significantly after 3mo. All Sphere, cylinder and spherical equivalent(SE)were improved significantly(<i>P<</i>0.001). On the other hand, keratometry 1(K1)and keratometry 2(K2)decreased significantly. It was a considerable change in SRK/Ⅱ(<i>P<</i>0.001), Hoffer Q(<i>P<</i>0.001)and Holladay Ⅰ<i>(P<</i>0.001)after 3-month's follow-up. Among this formula SRK/II had the lowest change.<p>CONCLUSION: In addition to improvement in visual, refractive, and keratometry outcomes after Keraring implantation, there was a significantly changes in IOL calculation formulas values. However, ICRS procedure doesn't interfere considerably AL in eyes, but it seems reduced keratometric values lead to IOL power calculations more accurately and all formulas suggested same IOL power.http://ies.ijo.cn/cn_publish/2017/7/201707001.pdfintraocular lensintracorneal ringkeratoconuskeratoconus |
| spellingShingle | Khosrow Jadidi Saman Mohazzab-Torabi Farhad Nejat Shiva Pirhadi Hossein Aghamollaei Comparison of preoperative and postoperative intraocular lens power values in eyes with Keraring implantation Guoji Yanke Zazhi intraocular lens intracorneal ring keratoconus keratoconus |
| title | Comparison of preoperative and postoperative intraocular lens power values in eyes with Keraring implantation |
| title_full | Comparison of preoperative and postoperative intraocular lens power values in eyes with Keraring implantation |
| title_fullStr | Comparison of preoperative and postoperative intraocular lens power values in eyes with Keraring implantation |
| title_full_unstemmed | Comparison of preoperative and postoperative intraocular lens power values in eyes with Keraring implantation |
| title_short | Comparison of preoperative and postoperative intraocular lens power values in eyes with Keraring implantation |
| title_sort | comparison of preoperative and postoperative intraocular lens power values in eyes with keraring implantation |
| topic | intraocular lens intracorneal ring keratoconus keratoconus |
| url | http://ies.ijo.cn/cn_publish/2017/7/201707001.pdf |
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