Intraocular lens power
Prediction error and accuracy of intraocular lens power calculation in pediatric patient comparing SRK II and Pediatric IOL Calculator
... underwent lens aspiration with intraocular lens power calculated using SRK II and Pediatric IOL Calculator for pediatric IOL calcula- ...the intraocular lens comes in ...
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Effect of pupillary dilation on Haigis formula-calculated intraocular lens power measurement by using optical biometry
... However, the biometry measurements in the cyclople- gic stage should be considered in the IOL formulas that use parameters other than AL and K. Our study accepted the deviation of #± 0.5 D in IOL power; therefore, ...
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Influence of corneal power on intraocular lens power of the second eye in the SRK/T formula in bilateral cataract surgery
... Background: To evaluate the effect of different adjustments of the refractive outcome of the first eye according to corneal power (K) in order to improve the intraocular lens (IOL) power ...
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Impact of the anterior-posterior corneal radius ratio on intraocular lens power calculation errors
... IOL power calculation error, subgroup analyses were performed on 181 patients (181 eyes) who met the following conditions: 1) They underwent only cataract surgery; 2) their axial length was measurable with IOL ...
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Prediction accuracy of intraocular lens power calculation methods after laser refractive surgery
... This study recorded data from consecutive Chinese patients with virgin eyes who were hospitalized in the Department of Ophthalmology, The First Affiliated Hospital of Anhui Medical University between January 15, 2016, ...
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Comparison of the Kane formula with existing formulas for intraocular lens power selection
... IOL power formula created using several large data sets from selected high-volume surgeons that uses a combination of theoretical optics, thin lens formulas and ‘big data’ techniques to make its ...depth, ...
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Intraocular lens power calculation in eyes with previous corneal refractive surgery
... Ray-tracing can also be used to calculate the IOL power and thus replace standard theoretical thin lens formulas. The refraction of rays at each optical surface from the tear film to the retina is ...
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CATARACT SURGERY AND INTRAOCULAR LENS POWER CALCULATION IN A PATIENT WITH ANTERIOR MEGALOPHTHALMOS WITH NORMAL SIZED CRYSTALLINE LENS; CASE REPORT
... Slit-lamp biomicroscopy of both eyes revealed signs of anterior megalophthalmos: enlarged corneas, deep anterior chamber, iris transillumination defects and white cataract in the right eye (Figure 1), while in- cipient ...
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Intraocular lens power calculation following laser refractive surgery
... IOL power formulas, a PubMed database search was performed for relevant literature between 1998 to October ...IOL power calculation, refractive surgery, keratometry, LASIK, photorefractive keratectomy (PRK) ...
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Inaccuracy of Intraocular Lens Power Prediction for Cataract Surgery in Angle Closure Glaucoma
... difference between eyes with ACG normal controls makesthis discrepancy in IOL prediction a reality. However, in this study, no pre-operative biometric factors closely related to the extent of inaccuracy of IOL ...
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Correlations between Preoperative Angle Parameters and Postoperative Unpredicted Refractive Errors after Cataract Surgery in Open Angle Glaucoma (AOD 500)
... Prior to cataract surgery, multiple biometric analyses are per- formed, including measurement of axial length, keratometry, and anterior chamber depth. It is expected that minimum re- fractive error will remain after ...
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Comparison of visual outcomes after bilateral implantation of a diffractive trifocal intraocular lens and blended implantation of an extended depth of focus intraocular lens with a diffractive bifocal intraocular lens
... The study consisted of a complete preoperative and post- operative visit from 30 to 180 days after surgery for both the groups. All patients underwent complete ophthalmological examination, including biomicroscopy, ...
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Comparison of Visian toric collamer lens and toric acrylic intraocular lens implantation for the treatment of myopia with astigmatism
... refractive lens extraction represents a major risk, while the worst two complications associated with TICL are both correctable, ie, glaucoma can be corrected by TICL explantation and cataract can be corrected by ...
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Comparison of intraocular pressure fluctuations before and after ab interno trabeculectomy in pseudoexfoliation glaucoma patients
... We suspected that there are three reasons for the greater reduction in mean IOP after triple surgery compared to single surgery. The first reason is the opening of the anterior cham- ber angle, and the second reason is ...
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Reliability of biometry.
... The Haag- Streit ophthalmometer is the modern version of the Javal-Schiotz or universal ophthalmometer. To determine the size of the image reflected by the cornea, this instrument employs a method that changes the size ...
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Calculation of posterior chamber intraocular lens (IOL) size and dioptric power for use in pet rabbits undergoing phacoemulsification
... Table 5. Ocular measurements (in mm) from B-mode ultrasonography of the client- owned rabbits with cataracts that underwent phacoemulsification. Anterior-posterior globe axis (APGA), equatorial globe axis (EGA), ...
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Comparison of clear lens extraction and collamer lens implantation in high myopia
... Preoperative specular microscopy using the noncontact specular microscope (NONCON ROBO-P, Konan Medical, Torrance, CA) was done and repeated six months postop- eratively. ACD, horizontal white to white diameter and ...
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Preoperative measurement vs intraoperative aberrometry for the selection of intraocular lens sphere power in normal eyes
... The differences between the postoperative spherical equivalent refractions and the predicted values were the prediction errors for each device. Figure 1 shows the distribution of the prediction errors by calculation ...
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Visual and refractive outcomes following implantation of a new trifocal intraocular lens
... A retrospective assessment of consecutive patients undergoing implantation of the AcrySof IQ Panoptix IOL (Alcon Labs, Ft Worth, TX, USA) at 3 separate cen- tres with 5 doctors (ML, JR, LL, TR, UB) was performed. The ...
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A clinical study on secondary intraocular lens implantation
... crystalline lens and the implant of an intraocular lens (IOL) in the capsular ...with lens subluxation, cataracts in pseudoexfoliative syndrome with zonular/capsular dehiscence) or to systemic ...
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