scholarly journals Transepithelial Photorefractive Keratektomy after a Clear Lens Exchange

Vision ◽  
2021 ◽  
Vol 5 (1) ◽  
pp. 8
Author(s):  
Diego de Ortueta
Keyword(s):  
Refractive Lens Exchange ◽  
Visual Outcomes ◽  
Vision Correction ◽  
Refractive Lens ◽  
Laser Vision ◽  
Lens Surgery ◽  
Optical Zone ◽  
The Mean ◽  
Pulse Technology

Purpose: We evaluated the refractive visual outcomes and efficacy of Transepithelial Photorefractive Keratectomy (TransPRK) using Smart Pulse Technology with static and dynamic cyclotorsion and the AMARIS 1050 Hz RS laser platform from Schwind in the eyes after a refractive lens exchange. Setting/Venue: Aurelios Augenlaserzentrum, Recklinghausen. Methods: We retrospectively evaluated the data of 552 consecutive eyes treated with refractive lens exchange between 2016 and 2019. A total of 47 eyes (8.5%) required a touch up after the clear lens exchange. From 43 eyes of 43 patients, we obtained a minimum follow up of 3 months. In all cases, we performed a TransPRK with a minimum optical zone of 7.2 mm, centering the ablation on the vertex of the cornea. Results: The average age of the treated eyes was 57 years old, with a range between 48 and 68 years. The mean treated sphere was 0.42 diopters (D), with a range between −1.0 and +1.75 D. The mean astigmatism was 1.06 D. Postoperatively, after laser vision correction, we reduced the sphere to a mean of 0.11 D (range −0.5 to +0.75 D), and, postoperatively, the mean astigmatism was 0.25 D (range −0.75 to 0 D). The predictability for a spheric equivalent (SEQ) of 0.5 D was 91%, and for 1 D it was 100% of the cases. No eye lost more than one Snellen line. Conclusions: TransPRK with smart pulse was predictable for correcting ametropia after Clear Lens Surgery.

scholarly journals User Friendliness of a Wearable Visual Behavior Monitor for Cataract and Refractive Surgery

2020 ◽  
Vol 10 (6) ◽  
pp. 2190 ◽  
Author(s):  
Bojan Pajic ◽  
Pavel Zakharov ◽  
Brigitte Pajic-Eggspuehler ◽  
Zeljka Cvejic
Keyword(s):  
Refractive Surgery ◽  
Diagnostic Testing ◽  
Wearable Device ◽  
Daily Activities ◽  
Visual Behavior ◽  
User Friendliness ◽  
Refractive Lens Exchange ◽  
Refractive Lens ◽  
Lens Opacities

A prospective feasibility study was conducted to determine whether a new wearable device, the Visual Behavior Monitor (VBM), was easy to use and did not present any difficulties with the daily activities of patients. Patients for cataract surgery and refractive lens exchange were randomly selected and screened for inclusion in the study. A total of 129 patients were included in the study as part of a multicenter study. All measurements were performed before surgery. Upon inclusion, patients were trained to wear the device, instructed to wear it for a minimum of 36 h, and were scheduled to return in one week. The VBM measures the distance at which patients’ visual activities are performed, the level of illumination, and head translational and rotational movements along the three axes. On the follow-up visit, patients completed a questionnaire about their experience in wearing the device. All patients underwent standard diagnostic testing, with their cataract grade determined by the Lens Opacities Classification System (LOCS) classification. Results indicate that 87% of patients felt comfortable using the wearable device while 8% of patients responded as not feeling comfortable (5% of patients did not respond to the question). In addition, 91% of patients found it easy to attach the wearable to the magnetic clip while 4% of patients did not find it easy, and 5% of patients did not respond. Overall, patients found the device easy to use, with most reporting that the device was not intrusive.

scholarly journals Long-Term Visual Outcomes for Small Uveal Melanoma Staged T1 Treated by Proton Beam Radiotherapy

Cancers ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1047 ◽  
Author(s):  
Adélaïde Toutée ◽  
Martina Angi ◽  
Sylvain Dureau ◽  
Christine Lévy-Gabriel ◽  
Livia Lumbroso-Le Rouic ◽  
...  
Keyword(s):  
Proton Beam ◽  
Optic Disc ◽  
Uveal Melanoma ◽  
Early Stage ◽  
Tumor Control ◽  
Proton Beam Radiotherapy ◽  
Visual Outcomes ◽  
The Mean

There is increasing evidence of the survival benefit of treating uveal melanoma in an early stage, however it is important to discuss with the patient the associated risk of visual loss. We investigated visual outcomes for uveal melanomas staged T1 (T1UM) treated by proton beam radiotherapy (PBR) as a function of their distance to fovea-optic disc. This retrospective study included a cohort of 424 patients with T1UM treated with PBR between 1991 and 2010 with at least a 5-year follow-up. Visual acuity (VA) was analyzed for patients with posterior edge of tumor located at ≥3 mm (GSup3) or <3 mm (GInf3) from fovea-optic disc. The mean follow-up duration was 122 months, no tumor recurrence was observed. The mean baseline and final VA were 20/25 and 20/32 for GSup3 (n = 75), and 20/40 and 20/80 for GInf3 (n = 317) respectively. The frequency of a 20/200 or greater visual conservation was 93.2%(CI95%:87.7–99.1) and 60.1%(CI95%:54.9–65.9) for GSup3 and GInf3 respectively. This difference between groups was statistically significant (p < 0.001). The risk factors for significant VA loss (less than 20/200) were GInf3 location (p < 0.001), tumor touching optic disc (p = 0.04), initial VA inferior to 20/40 (p < 0.001), documented growth (p = 0.002), and age greater than 60 years (p < 0.001). In summary, PBR for T1UM yields excellent tumor control and good long-term visual outcomes for tumors located ≥3 mm from fovea-optic disc.

Visual outcomes after bilateral implantation of Versario intraocular lenses – six month follow-up

2021 ◽  
Author(s):  
Karolina Podboraczynska-Jodko ◽  
Wojciech Lubiński
Keyword(s):  
Postoperative Complications ◽  
Case Series ◽  
Intraocular Lenses ◽  
Normal Range ◽  
Visual Outcomes ◽  
Function Test ◽  
Healthy Control ◽  
Defocus Curve ◽  
The Mean

Abstract PurposeTo study visual outcomes after implantation of Versario intraocular lenses (IOLs) Patients and MethodsIn 20 selected patients (40 eyes) uneventful, bilateral cataract surgeries with implantation of trifocal Versario (IOLs) were performed. Designprospective case series. Six months after surgery the following parameters were analysed: binocular uncorrected visual acuities (log MAR): for distance (UDVA) at 4 m, for intermediate (UIVA) at 60, 70, 80 cm and for near (UNVA) at 40 cm, photopic defocus curve, mesopic and photopic contrast sensitivities (CSs), spectacle independence, visual function test questionnaire (modified VFQ-25), subjective symptoms and postoperative complications. ResultsSix months after surgery, the mean of binocular visual acuities were as follows: UDVA: -0.12 ± 0.08; UIVA (60 cm): +0.07 ± 0.10, (70 cm): +0.05 ± 0.11, (80cm): +0.07 ± 0.09; UNVA (40cm): +0.12 ± 0.08. CSs in mesopic and scotopic conditions for distance and photopic for near were between normal range of age- match healthy control. All patients were spectacle independent. General satisfaction was high and equal 9.37±0.83. No severe glare and halo were detected. There were no postoperative complications. ConclusionsThe bimanual MICS with the Versario lenses implantation was a safe and effective method for patients who want to be spectacle independent at different distances.

Clinical effectiveness of intrastromal corneal ring segments among keratoconus patients

2020 ◽  
Vol 1 (3) ◽  
pp. 140-144
Author(s):  
Abdullhamid Alghamdi ◽  
Keyword(s):  
Visual Acuity ◽  
Femtosecond Laser ◽  
Surgical Intervention ◽  
Clinical Effectiveness ◽  
Ophthalmic Examination ◽  
Visual Outcomes ◽  
Intrastromal Corneal Ring ◽  
Uncorrected Visual Acuity ◽  
The Mean

AIM: To evaluate the clinical effectiveness of intrastromal corneal ring segments (ICRS) among the patients suffering from keratoconus. METHODS: A retrospective and non-comparative interventional design had been utilized on the basis of postoperative follow-up among 56 keratoconus patients. Visual acuity was significantly assessed during complete ophthalmic examination of the patients. The femtosecond laser had been used to create the corneal tunnels in 15 eyes; whereas, the corneal tunnels were created in 72 eyes mechanically. RESULTS: The ranges and standard deviations had been used to obtain results. It had been revealed through ophthalmic assessment that the mean preoperative uncorrected visual acuity observed was 1.38±0.37 logarithm of Minimal Angle of Resolution. Moreover, a significant improvement was observed postoperatively in visual acuity by 0.58±0.32 during the 4th month. The improvement was also witnessed in the 16th month by 0.48±0.30. CONCLUSION: The implantation of ICRS is an efficient and effective surgical intervention for the treatment of keratoconus. Thus, identified intervention seems to be associated with appropriate visual outcomes and safety after the development of femtosecond as well as mechanical tunnels.

Visual outcomes of laser vision correction in eyes with preoperative amblyopia

2017 ◽  
Vol 43 (3) ◽  
pp. 383-388 ◽  
Author(s):  
Nir Sorkin ◽  
David Varssano ◽  
David Smadja ◽  
Ainat Klein ◽  
Michael Mimouni ◽  
...  
Keyword(s):  
Visual Outcomes ◽  
Vision Correction ◽  
Laser Vision
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