intraocular lens implantation
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Eye ◽  
2022 ◽  
Author(s):  
Shruthi Gajula ◽  
George J. Manayath ◽  
Shishir Verghese ◽  
V. R. Saravanan ◽  
Kalpana Narendran ◽  
...  

2022 ◽  
Vol 53 (1) ◽  
pp. 12-21
Author(s):  
Anubhav Garg ◽  
Tsz Hin Alexander Lau ◽  
Marko M. Popovic ◽  
Peter J. Kertes ◽  
Rajeev H. Muni

Optics ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 292-305
Author(s):  
Pedro Serra ◽  
Ángel Sánchez Trancón ◽  
Oscar Torrado Sierra ◽  
António Baptista ◽  
Santiago Cerpa Manito

Posterior chamber phakic intraocular lens implantation is a refractive technique for the correction of myopia. This study aimed to identify those factors contributing to variability in postoperative refraction. Methods: This retrospective study evaluated 73 eyes (one eye per patient) implanted with myopic implantable collamer lenses (ICL). Eyes were divided into two groups, the low myopic group (LMG) (ICL > −9.5 DS) and the high myopic group (HMG) (ICL ≤ −9.5 DS), to compare the predictability, efficacy index, and postoperative refraction between groups. The association of postoperative refraction with anatomical, demographic, and optical features was assessed through correlation analysis and investigated using ray-tracing. Results: Postoperative refraction at 3 months for the whole group was close to emmetropia at −0.02 ± 0.37 DS, the LMG tended toward myopia and the HMG, toward hyperopia. The results showed that 65% and 54% of the eyes had postoperative refraction of within ±0.25 DS, respectively, in the LMG and HMG, and in both groups, 100% were within ±1.00 DS. ICL implantation had a higher efficacy index in the HMG (1.13 ± 0.15) than in the LMG (1.04 ± 0.15). Postoperative refraction was positively associated with the vault (R = 0.408) and negatively correlated with ICL power (R = −0.382). Conclusion: The predictability and effectiveness of ICL implantation is high in a wide range of myopias. Considering the expected vault and including accurate vertex measurements would contribute to improving the predictability of the results.


2021 ◽  
Vol 10 (2) ◽  
pp. 98-100
Author(s):  
Sharad Gupta ◽  
Reena Yadav ◽  
Satbodh Shrestha ◽  
Bipin Bista ◽  
Vidisa Gupta ◽  
...  

Subconjunctival dislocation of the intraocular lens secondary to trauma is an unusual and serious condition in the pseudophakic eye. Here, a case of 75 years old male who had traumatic superior subconjunctival dislocation of intraocular lens to his right eye with cow’s horn is reported. The patient was managed with surgical extraction of the lens and planned for secondary intraocular lens implantation. It is quite challenging to manage such a case. Despite, proper surgical management visual outcomes are always guarded in such patients with blunt trauma.


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