Hyperopia myopia treatment

A myopia és hyperopia korrekciója lencsével

Received Jan 5; Accepted Jan Copyright ©Hashmani et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. This article has been cited by other articles in PMC. We included 50 eyes of 50 patients who presented to the Hashmanis Hospital, Pakistan and were followed for six months hyperopia myopia treatment.

Results The mean preoperative sphere, cylinder, and spherical equivalent SE values were On day one these values were 0. Conclusion Our study demonstrates good efficacy, predictability, and stability of eyes undergoing TGL with a follow-up of six months.

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Keywords: topography guided lasik, lasik, custom lasik, topography, refractive surgery, cornea, corneal surgery Introduction Laser-assisted in situ keratomileusis LASIK has improved significantly in the hyperopia myopia treatment decade and hyperopia myopia treatment currently the most frequently performed refractive surgery [ 12 ]. It provides superior outcomes when used in corneas with extensive scarring or high aberrations where wavefront aberrometry cannot be done [ 67 ].

The technique is also effective for patients in terms of wound healing, flap induced aberrations as well as ablation predictability when compared to the theoretical models of wavefront maps [ 8 ]. Additionally, studies have shown promising outcomes in virgin eyes in terms of uncorrected visual acuity UCVAbest corrected visual acuity BCVAand refractive cylinder [ 910 ].

Even fewer studies have evaluated the results of this technique on virgin eyes. Furthermore, no such study has been done in Pakistan. Therefore we wanted to evaluate the visual and refractive outcomes of TG LASIK on eyes that have not undergone a refractive procedure before.

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Materials and methods Patients This retrospective, single arm, and nonrandomized hyperopia myopia treatment was reviewed and approved by the ethics committee of the Hashmanis Hospital. On the basis of eligibility criteria, 50 eyes of 50 patients who had follow-up records of at least six months were included. The study period lasted for one year from June to July Furthermore, a written informed consent was obtained from each refractive surgery candidate before the LASIK procedure.

Inclusion and exclusion criteria The study protocol [ 1112 ] and reasons for exclusion [ 13 ] have been discussed in previous studies. Included in the study were patients aged 18 years or over who sought LASIK eye surgery for spectacle independence. All patients had a stable refractive error with myopia of less than Anyone with a central corneal thickness CCT of less than μm or an estimated residual stromal bed thickness of less than μm were excluded.

Also excluded were pregnant or lactating women, immunocompromised individuals, those who had diabetes mellitus or autoimmune disease or were milyen gyümölcsök és zöldségek helyreállítják a látást on systemic corticosteroids or immunosuppressants. Patients were asked to sign a written informed consent before the surgery. Patients were asked to discontinue wearing soft contact lenses one week prior to the screening.

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We used the topography-guided custom ablation treatment T-CATwhich included topography, keratometry, and pupilometry; this was done using the Allegro topolyzer Alcon Laboratories, Inc. We selected images covering an adequate area from two to eight topography images and these were transferred to the study computer. Then we added the refraction data and asphericity correction to the computer. The software calculated the ablation pattern using the data provided; this was subsequently transferred to the laser platform.

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Procedure and postoperative care Patients were scheduled for topography-guided simultaneous bilateral LASIK procedure. The same surgeon hyperopia myopia treatment each eye under topical anaesthesia; only one eye was included in the final analysis.

The central corneal thickness was measured on the apex of the cornea prior to surgery.

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After the creation of the flap, CCT was measured a second time in order to assess the underlying stromal thickness. The flap was raised using a tissue separator, and a balanced solution was used to irrigate the eyes once the procedure was completed and the flap was repositioned.

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Additionally, they were instructed to use moxifloxacin eye drops four times daily for 10 days and artificial tears four times daily for three weeks. The patients were evaluated on day one, week one, and month one, three, and six postoperatively to assess their refractive outcomes in terms of UCVA, sphere, cylinder, and spherical equivalent SE.

Emmetropia was the refractive target in all cases; however, this was dependent on the látás levél táblázat reading.

Gyakorlatok a szem számára, amelyek célja a látás javítása a hyperopiában. A hyperopia látáskárosodás, amely a közeli elhelyezkedésű tárgyak fuzzy látásmódjában nyilvánul meg. Vagyis megfigyeljük a myopiával ellentétes helyzetet.

We used descriptive statistics to calculate the mean and standard deviations of all data. The mean preoperative sphere, cylinder, and spherical equivalent values were At the sixth postoperative month, these were