Influence of scleral lens haptic zone design on lens fit in patients with different scleral toricity

2021 ◽  
pp. 53-56
Author(s):  
N.A. Bakalova ◽  
◽  
O.A. Zhabina ◽  
S.V. Listratov ◽  
S.V. Avetisov ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Key Words ◽  
Contact Lens ◽  
Retrospective Review ◽  
Correct Choice ◽  
Patient Records ◽  
Stabilization Method ◽  
Lens Diameter ◽  
The Mean ◽  
Corneal Diameter

In our practice, we often encounter the issue of centering and stabilizing scleral contact lens (SCL) in the patient's eye. This is due to the fact that the haptic part of the SCL rests on the scleral conjunctiva, which itself is toric. Рurpose. To analyze possibilities of stabilizing scleral and mini-scleral lenses in patients with different scleral toricities. Material and methods. This study was a retrospective review of 17 patient records (34 eyes); 9 patients were male and 8 female. The mean age of the patients was 38 ± 12 years. Results. The horizontal visible iris diameter amounted to 11.85 ± 0.52 mm (11.0 to 12.5 mm). All patients previously underwent fitting of SCLs for correction of ametropia. Lens diameter was chosen based on the corneal diameter, while the shape of the patient's sclera determined stabilization method. This work describes a method for determining scleral toricity. An adequate fit of spherical SCLs was not achieved in patients with toric sclera; however, the correct choice of a stabilization method made it possible to achieve congruence of the lens edge with the scleral surface in all four quadrants and obtain a high visual acuity in all patients included in the study, regardless of the lens diameter. Conclusion. Stabilization of SCLs provided a safe and comfortable wearing experience. Key words: scleral lenses, mini-scleral lenses, lens edges, scleral conjunctiva, toric periphery, limbus

scholarly journals Anatomical and Visual Effects of Implantable Phakic Contact Lens on Correction of Myopia

2022 ◽  
Author(s):  
Mahmoud Ekram ◽  
Ahmed Mohamed Kamal Elshafei ◽  
Asmaa Anwar Mohamed ◽  
Mohamed Farouk Sayed Othman Abdelkader
Keyword(s):  
Visual Acuity ◽  
Anterior Chamber ◽  
Contact Lens ◽  
Anterior Segment ◽  
Anterior Chamber Depth ◽  
Case Series ◽  
Care Group ◽  
Case Series Study ◽  
Significant Difference ◽  
The Mean

Abstract Purpose: To evaluate the anatomical effects of implantable phakic contact lens (IPCL) (Care Group, India) on anterior segment and its visual outcomes .Patients and methods: In a prospective interventional case series study, 60 highly myopic eyes of 32 patients were subjected to IPCL implantation in the Ophthalmology Department of Minia University Hospital, Egypt from January 2019 to June 2021. All patients had complete ophthalmic examination and were followed up for 1 year. Pentacam was used for preoperative and postoperative estimation of anterior chamber depth (ACD), anterior chamber angle (ACA), anterior chamber volume (ACV) and IPCL vault in the 1st, 3rd, and 12th months. Assessment of corneal endothelium was done using specular microscope preoperatively and after 12 months. Preoperative and postoperative refraction and visual acuity were measured. Results: There was a statistically significant decrease in ACD, ACA, and ACV. There was no significant difference between preoperative and postoperative mean intraocular pressure (IOP) by the 12th month (P=0.163). The mean preoperative endothelial cell count (ECD) was significantly reduced from 2929.3±248 cells/mm2 to 2737.9±303 cells/mm2 at the 12th month (P<0.001). with a statistically highly significant improvement of mean Log Mar uncorrected visual acuity (UCVA) from 1.48±0.19 preoperatively to 0.46±0.11 by the end of follow up (P<0.001) with insignificant difference between preoperative best corrected visual acuity (BCVA) and postoperative UCVA (P=0.209). In the 12th month, the mean vault was 240±540 μm. No sight threatening complications occurred.Conclusion: Although IPCL induced anatomical changes, it was safe and effective for correction of high myopia.

scholarly journals Clinical Performance of Toris K Contact Lens in Patients with Moderate to Advanced Keratoconus: A Real Life Retrospective Analysis

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Ihsan Yilmaz ◽  
Ferah Ozcelik ◽  
Berna Basarir ◽  
Gokhan Demir ◽  
Gonul Durusoy ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Contact Lens ◽  
Contact Lenses ◽  
Clinical Performance ◽  
Real Life ◽  
Soft Contact Lenses ◽  
Corrected Visual Acuity ◽  
Uncorrected Visual Acuity ◽  
Central Cone ◽  
The Mean

Objectives.To evaluate the visual performance of Toris K soft contact lenses in patients with moderate-to-advanced keratoconus and also to compare the results according to cone types, cone location, and severity of keratoconus.Materials and Methods.Sixty eyes of 40 participants were included in this retrospective study. Uncorrected visual acuity (UCVA), best-spectacle corrected visual acuity (BCVA), best-contact lens corrected visual acuity (BCLCVA), and comfort rating via visual analogue scales (VAS) were measured.Results.The mean age was 27.3 ± 8.6 years (range: 18 to 54). The mean logMAR UCVA, BCVA, and BCLCVA were 0.85 ± 0.38 (range: 0.30–1.30), 0.47 ± 0.27 (range: 0.10–1.30), and 0.16 ± 0.20 (range: 0–1.00). There were significant increases in visual acuities with contact lenses (p<.05). BCLCVA was significantly better in oval type than globus type (p=.022). UCVA and BCLCVA were significantly better in moderate keratoconus group (p=.015,p=.018). The mean line gain in Snellen was 3.6 ± 1.8 lines (range: 0–7 lines). The mean line gain was higher in central cone group than paracentral cone group and oval group than globus group (p=.014,p=.045). The mean VAS score was 8.14 ± 1.88 (range: 6–10).Conclusions.Toris K can improve visual acuity of patients with keratoconus. Toris K is successful even in the moderate and advanced form of the disease.

Pancorneal Contact Lens with a Toric Edge: A New Concept in Keratoconus

2011 ◽  
Vol 21 (6) ◽  
pp. 685-690 ◽  
Author(s):  
Sizar Kamar ◽  
Charles Vervaet ◽  
Gregohus P.M. Luyten ◽  
Martine J. Jager
Keyword(s):  
Visual Acuity ◽  
Contact Lens ◽  
Marked Improvement ◽  
Corneal Topography ◽  
Corrected Visual Acuity ◽  
The Mean ◽  
Best Corrected Visual Acuity

Purpose. To investigate whether fitting a patient with keratoconus to a pancorneal toric rigid gas-permeable (RGP) contact lens leads to a change in corneal compression and improves the best-corrected visual acuity (BCVA) and keratometry values. Methods. Thirty eyes with keratoconus were fitted with a newly designed pancorneal toric RGP contact lens. Each patient was examined at the time of enrollment and after having used the new contact lens for at least 2 months. Corneal topography was performed both times. Results. A change in corneal compression was noticed in 23 eyes (77%). Following the use of the pancorneal toric RGP contact lens, the average BCVA improved significantly (p=0.007), with a mean BCVA of 0.63 (SD 0.15) before and 0.70 (SD 0.18) after using the toric contact lens. No significant changes were seen in the mean vertical and horizontal K-values or the mean E-values. Conclusions. While no significant measurable differences in K- and E-values were observed, fitting of a pancorneal toric RGP contact lens in keratoconus led to a marked improvement in visual acuity and a visible change in corneal compression.

scholarly journals Switch to Aflibercept in Diabetic Macular Edema Patients Unresponsive to Previous Anti-VEGF Therapy

2017 ◽  
Vol 2017 ◽  
pp. 1-4 ◽  
Author(s):  
Filipe Mira ◽  
Manuel Paulo ◽  
Filipe Henriques ◽  
João Figueira
Keyword(s):  
Visual Acuity ◽  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Retrospective Review ◽  
Retinal Thickness ◽  
Central Retinal Thickness ◽  
Functional Improvement ◽  
Anti Vegf ◽  
The Mean

Purpose. The aim was to evaluate the efficacy of aflibercept in patients with diabetic macular edema (DME) unresponsive to prior anti-VEGF therapy. Methods. Retrospective review of DME unresponsive to previous anti-VEGF switched to aflibercept with 3 months of follow-up. Changes in best correct visual acuity (BCVA), central retinal thickness (CRT), and frequency of injections were analyzed. The percentage of subjects who had ≥20/40 (logMAR equivalent 0.3) and ≤20/200 (logMAR equivalent 1) was evaluated. Results. A total of 32 eyes from 26 patients were included. Mean age was 65 ± 10 years old. The mean number of previous anti-VEGF injections was 5.34 ± 2.38, and the mean number of aflibercept injections at the end of the study was 2.00 ± 0.00. The CRT at baseline was 501.47 ± 150.51 μm and 367.97 ± 124.61 μm at 3 months of follow-up (P<0.001). The logMAR BCVA at baseline was 0.71 ± 0.36 and 0.65 ± 0.33 at the end of the follow-up (P=0.037). At baseline, 12.5% of patients had ≥20/40 compared with 25% at the end of follow-up. At baseline, 28.13% of patients had 20/200 or inferior vision compared with 15.63% at the end of the follow-up. Conclusions. DME patients unresponsive to previous multiple ranibizumab injections demonstrate a significant anatomical and functional improvement with the switch to aflibercept.

The utility of contact lens-assisted corneal cross-linking (CACXL) in progressive keratoconus patients with thin corneas

2022 ◽  
pp. 112067212110709
Author(s):  
Bilgehan Sezgin Asena ◽  
Mahmut Kaskaloglu
Keyword(s):  
Visual Acuity ◽  
Endothelial Cell ◽  
Cell Count ◽  
Contact Lens ◽  
Corneal Thickness ◽  
Hydroxypropyl Methylcellulose ◽  
Cross Linking ◽  
Demarcation Line ◽  
Endothelial Cell Count ◽  
The Mean

Purpose To evaluate efficacy and safety of contact lens-assisted corneal cross-linking (CACXL) among progressive keratoconus patients with thin corneas. Setting Private eye hospital Design Cross-sectional study Methods Thirty-six eyes of 36 consecutive patients with progressive keratoconus and thinnest corneal thickness of 380–400 µm after epithelium removal were included. CACXL was performed based on use of a dextran-free isotonic (>0.1%) riboflavin solution with hydroxypropyl methylcellulose (HPMC, 1.1%) after epithelial removal and placement of a riboflavin-soaked contact lens without an ultraviolet filter on the cornea and ultraviolet irradiance. Data on best distance corrected (CDVA) and uncorrected (UDVA) visual acuity, manifest sphere (D), manifest cylinder (D), K1 (D), K2 (D), mean keratometry (D) and Kmax (D) values, endothelial cell count and mean depth of demarcation line were recorded preoperatively and at the postoperative 1-year Results Post-operative 1-year data revealed significant increases in UDVA (0.23  ±  0.15 vs. 0.17  ±  0.13 D, p < 0.001) and CDVA (0.44  ±  0.18 vs. 0.36  ±  0.17 D, p < 0.001) values and a significant reduction in the mean Kmax (from 56  ±  3.3D to 55  ±  3.2 D, p < 0.001), K2 (from 49.7  ±  3.2 D to 49.52  ±  3.11 D, p  =  0.049), manifest sphere (from −1.93  ±  2.21 D to −1.55  ±  2.02 D, p  =  0.001) and manifest cylinder (from −2.83  ±  1.67 D to −2.39  ±  1.36 D, p < 0.001) values along with a similar endothelial cell count. The mean depth of demarcation line was mean 230 (SD17.05, range 200 to 262) at postoperative 1-month. Conclusions Our findings indicate favourable 1-year postoperative outcome of CACXL in progressive keratoconus patients with thin cornea in terms of improved visual acuity and keratectasia status as well as endothelial safety.

Visual outcomes of a new implantable phakic contact lens in patients with stable keratoconus

2020 ◽  
Vol 1 (4) ◽  
pp. 262-267
Author(s):  
Farideh Doroodgar ◽  
◽  
Sana Niazi ◽  
Azad Sanginabadi ◽  
Cyrus Alinia ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Contrast Sensitivity ◽  
Contact Lens ◽  
Cell Loss ◽  
Corrected Visual Acuity ◽  
Snellen Visual Acuity ◽  
Clinical Consequences ◽  
The Mean ◽  
Safety Indices ◽  
Best Corrected Visual Acuity

AIM: To assess the efficacy, safety, stability and predictability of an implantable Phakic contact lens in patients with stable keratoconus. METHODS: The uncorrected and the best corrected visual acuity, defocus curve, contrast sensitivity, refraction and possible side effects were measured in 14 patients after utilizing implantable phakic contact lens (IPCL) to correct refractive errors. The result was assessed for more than 6mo. RESULTS: The mean preoperative spherical equivalent (SE) and astigmatism got changed from -6.94±2.79 DS and -4.24±1.42 DC to -0.23±0.43 DS and -1.05±0.49 DC, respectively at the last examination after 6mo. Before the preoperative the mean Snellen visual acuity was 0.18±0.10 logMAR. The mean uncorrected and the best corrected visual acuity got changed to 0.13±0.10 logMAR and 0.05±0.15 logMAR, respectively in 6mo. The mean safety indices were 1.11. There was no loss of visual acuity in any of the eyes and 22 eyes (78.5%) gained one or more lines. Twenty eyes (71.4%) were within 0.50 ?D and 27 (96.42%) were within ±1.00?D of the desired SE refraction. There was a change in manifest refraction of -0.23±0.43 (range from -1.00 to +0.75) from the first week of surgery to 6mo. Contrast sensitivity got improvement value at 3 per degree (P<0.005) after Toric IPCL implantation. The total 6mo corneal endothelial cell loss (ECL) was <5%. Intraocular pressure (IOP) was 11.32±2.28 mm Hg after 6mo. CONCLUSION: The clinical consequences of the present study exhibit the efficacy, safety, and predictability of Toric implantable Phakic contact lens in the correction of myopia and myopic astigmatism related with stable keratoconus.

KNOWLEDGE, ATTITUDE AND PRACTICES OF CARETAKERS AND HEALTH PROFESSIONALS TOWARD TEETHING IN INFANTS

2011 ◽  
pp. 52-59
Author(s):  
Binh Bao Son Bui
Keyword(s):  
Sleep Disturbance ◽  
Key Words ◽  
Breast Feeding ◽  
Health Professionals ◽  
Feeding Problems ◽  
Central Hospital ◽  
Pediatric Department ◽  
Correct Knowledge ◽  
The Mean

Objective and methods: a prospective questionnaire based study on 71 parents (caretakers) of consecutive children treated at the Pediatric Department, Hue Central Hospital and on 47 health professionals at the department was conducted from September until December 2009 to investigate the knowledge, attitude and practices of the caretakers, nurses and postgraduated doctors toward teething in infants. Results: Most responders believed that teething causes fever, irritability, feeding problems, drooling, biting, sleep disturbance, swollen gums, crying, lose of appetite for solids; and fever over 38oC was also believed to be associated with teething. The mean eruption time of the first tooth was from 6 months. Most caretakers had normal attitude to manifestations ascribed to teething (54.9%). The most common management to symptoms attributed to teething included increased breast-feeding, oral paracetamol, increased fluid supplying and physician consulting. Conclusion: Correct knowledge to teething in infants need to be educated for parents (caretakers) and even for health professionals. Key words: knowledge, attitude, practices, teething, infants.

CLINICAL CHARACTERISTICS OF THE CHRONIC DACRYOCYSTITIS AND THE SUCCESS RATE OF EXTERNAL DACRYOCYSTORHINOSTOMY

2015 ◽  
pp. 29-34
Author(s):  
Van Nam Phan ◽  
Ba Kien Tran
Keyword(s):  
Success Rate ◽  
Key Words ◽  
Clinical Characteristics ◽  
Lacrimal Duct ◽  
Interventional Study ◽  
Chronic Dacryocystitis ◽  
External Dacryocystorhinostomy ◽  
The Mean

Purpose: To determine the clinical characteristics of the chronic dacryocystitis and the success rate of external dacryocystorhinostomy. Methods: The retrospective, interventional study without comparing on 27 patients (32 eyes) of chronic dacryocystitis who underwent dacryocystorhinostomy (DCR) from 2010 to 2011. Results were evaluated with standards: epiphora, purelence, lacrimal duct irrigation. Results: Over period of 6 months, 27 patients including 25 (92.59%) female, 2 (7.41%) male. The mean age was 49.8 years (range, 22-79 years). All patients demonstrated epiphera (range, 3 months – 11 years). Dacryocystorhinostomy was performed unilaterally in 81.48%, bilateral 18.52%. Successrate was 90.06% overall. Conclusions: Although techniques in dacryocystorhinostomy of DUPUY-DUTEMPS is old, its result is mainstay of treatment for chronic dacryocystitis in Vietnam. Key words: Dupuy-Dutemps, chronic dacryocystitis

RESULTS OF INTRALESIONAL TRIAMCINOLONE ACETONIDE FOR CHALAZION TREATMENT

2011 ◽  
pp. 100-104
Author(s):  
Thi Thu Nguyen ◽  
Viet Hien Vo ◽  
Thi Em Do
Keyword(s):  
Success Rate ◽  
Key Words ◽  
Triamcinolone Acetonide ◽  
Lower Eyelid ◽  
Upper Eyelid ◽  
Interventional Trial ◽  
The Mean ◽  
First Time

The study use intralesional triamcinolone acetonide injection proceduce for chalazion treatment.1. Objectives: To evaluate results of intralesional triamcinolone acetonide injection for chalazion treatment. 2. Method: This noncomparative prospective interventional trial included 72 chalazions of 61 patients. 3. Results: 61 patients (72 chalazions) with 19 males (31.1%) và 42 females (68.9%), the mean age was 24 ± 9,78 years. 31.1% patients was the first time chalazion and 68.9% patients was more than one times chalazion including 78.6% patients was recurrent at the first position and 21.4% patients occur at new position. 72 chalazions with 16 (22.2%) chalazions was treated before and 56 (77.8%) chalazions wasn’t done that. 72 chalazions with 49 chalazions (68.1%) are local in upper eyelid and 23 chalazions (31.9%) are local in lower eyelid. The mean of chalazion diameter is 6.99 ± 3.03mm. Intralesional triamcinolone acetonide is injected to treat 72 chalazions with 16 (22.2%) chalazions are injected through the route of skin and 56 (77.8%) chalazions are injected through the route of conjunctiva. After 2 weeks follow-up, the success rate was 93.1% and 6.9% failed. 4. Conclusion: intralesional triamcinolone acetonide injection for chalazion treatment is really effective. Key words: chalazion, intralesional triamcinolone acetonide.

Airway management with I-gelTM for ambulatory laparoscopic inguinal hernia repair in children; a retrospective review of 230 cases

2020 ◽  
Vol 24 (5) ◽  
Author(s):  
Carla Hipólito ◽  
Vicente Vieira ◽  
Virginia Antunes ◽  
Petra Alves ◽  
Adriana Rodrigues ◽  
...  
Keyword(s):  
Inguinal Hernia ◽  
Hernia Repair ◽  
Airway Management ◽  
Inguinal Hernia Repair ◽  
Neuromuscular Blockade ◽  
Retrospective Review ◽  
Laparoscopic Inguinal Hernia Repair ◽  
Laparoscopic Inguinal Hernia ◽  
Increased Risk ◽  
The Mean

Background: Inguinal hernia is one of the most common conditions presented for surgical repair in children and laparoscopic approaches are increasingly performed. Previous studies have shown safety and efficacy in the use of supraglottic devices (SGD) as an alternative to tracheal intubation, which fits particularly well with outpatient anesthesia. Methodology: we conduct a retrospective observational study, collecting data from the electronic anesthetic form, from all patients aged 0 to 17 y who underwent ambulatory laparoscopic percutaneous internal ring suturing between February 2015 and August 2019, if I-gelTM was used to airway management. Results: We found 230 patients meeting the inclusion criteria. The mean age was 5.2 y old, mean weight 20.1 kg. All patients were ASA I (n=203) or ASA II (n=27). The mean surgery duration was 38 minutes. We found 4 respiratory adverse events, three bronchospasms, and one laryngospasm, managed in the operating room. Ninety percent of the surgeries were performed without neuromuscular blockade. Conclusion: I-gelTM was a safe, effective, and convenient alternative to airway management to laparoscopic inguinal hernia repair in the ambulatory setting. According to available literature, our practice did not represent an increased risk for the studied respiratory events. SGD obviates the need for neuromuscular blockade. Key words: I-gel; Supraglottic devices; Laparoscopy; Inguinal hernia repair; Pediatrics; Anesthesia, ambulatory Citation: Hipólito C, Vieira V, Antunes V, Alves P, Rodrigues A, Santos MJ. Airway management with I-gelTM for ambulatory laparoscopic inguinal hernia repair in children; a retrospective review of 230 cases. Anaesth. pain intensive care 2020;24(5): Received: 18 February 2020, Reviewed: 5 August, 6 September 2020, Accepted: 11 September 2020

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