EVALUATION OF THE EFFECTS OF ORTHOKERATOLOGY ON MYOPIA, ASTIGMATISM IN DA NANG FARGO ORTHO-K CENTER

2018 ◽  
Vol 8 (4) ◽  
pp. 70-75
Author(s):  
Khoi Hoang Huu
Keyword(s):  
Visual Acuity ◽  
Prospective Study ◽  
Key Words ◽  
Case Studies ◽  
Outcome Evaluation ◽  
Spherical Equivalent ◽  
Safe Treatment ◽  
Spherical Equivalent Refraction ◽  
Pre Treatment ◽  
A Prospective Study

Objectives: To evaluate the effects of orthokeratology (Ortho-K) on myopia, astigmatism and identify complications during applying the treatment. Methods: This is a prospective study accompanied with a series of case studies and outcome evaluation of 118 eyes of 60 patients who were diagnosed for myopia, astigmatism and were indicated wearing overnight Ortho-K lenses during the time from June 2017 to June 2018. Results: 118 eyes were prescribed wearing overnight Ortho-K lenses and their results were reported as follow: Visiual acuity ≥ 8/10 before the treatment was 1.7%, after one day of the treatment it increased to 3.4%, after 1 week it was 34.7%, after 1 month it was 71.2%, after 3 month it was 87.1% and after 6 months it accounted for 94.7%; Mean spherical equivalent refraction pre-treatment was -4.03D ± 1.70D, after 6 months of the treatment it reduced to - 0.38D ± 0.45D; Residual refraction after 6 months of the treatment ≤ 1.00D accounted for 96.5%; After 1 month of the treatment, 09 eyes (7.6%) were diagnosed for mild keratitis and 109 eyes (92.4%) had normal cornea after the treatment. Conclusions: Our results suggest that orthokeratology is a highly effective and safe treatment for correcting visual acuity in myopic and astigmatic patients. Key words: Myopia, astigmatism, orthokeratology

Customised gold weight eyelid implantation in paralytic lagophthalmos

2008 ◽  
Vol 122 (10) ◽  
pp. 1088-1091 ◽  
Author(s):  
N Jayashankar ◽  
K P Morwani ◽  
M J Shaan ◽  
S R Bhatia ◽  
K T Patil
Keyword(s):  
Visual Acuity ◽  
Prospective Study ◽  
Study Design ◽  
Study Group ◽  
Upper Eyelid ◽  
Eyelid Closure ◽  
Gold Weight ◽  
One Year ◽  
A Prospective Study

AbstractGold eyelid implantation is widely considered the procedure of choice to reanimate the upper eyelid in paralytic lagophthalmos. Commercially supplied implants are not readily available in all places and are sometimes cumbersome to import.Objective:We aimed to devise a method whereby every surgeon performing gold eyelid implantation could have easy and quick access to the implant. Furthermore, we aimed to develop a means of creating an implant of the exact weight required for complete eyelid closure.Study design and setting:A prospective study was performed from 1997 to 2005 in a tertiary research hospital, involving 50 subjects requiring gold upper eyelid implantation and using the technique in question.Results:Only patients with a minimum follow up of one year were included in the study group. Symptoms improved in 96 per cent of subjects, who were able to dispense with eyedrops and eye ointments. Visual acuity improved in 92 per cent of patients. There were two extrusions amongst the early cases.Conclusion and significance:Customised gold eyelid implantation offers an alternative in regions where commercial implants are not easily obtained.

Clinical outcomes of small incision lenticule extraction versus advanced surface ablation in low myopia

2019 ◽  
Vol 30 (6) ◽  
pp. 1278-1286 ◽  
Author(s):  
Suphi Taneri ◽  
Saskia Kießler ◽  
Anika Rost ◽  
Tim Schultz ◽  
H Burkhard Dick
Keyword(s):  
Visual Acuity ◽  
Spherical Equivalent ◽  
Small Incision Lenticule Extraction ◽  
Distance Visual Acuity ◽  
Small Incision ◽  
Surface Ablation ◽  
Uncorrected Distance Visual Acuity ◽  
Corrected Distance Visual Acuity ◽  
Spherical Equivalent Refraction ◽  
Lenticule Extraction

Purpose: To compare the visual and refractive outcomes of small incision lenticule extraction and advanced surface ablation for low myopia or myopic astigmatism. Methods: Retrospective, observational case series of our first 50 consecutive small incision lenticule extraction patients compared to refraction-matched 50 advanced surface ablation treatments with attempted spherical equivalent correction ⩽−3.5 D, astigmatism ⩽−1.5 D, and corrected distance visual acuity of 1.0 (decimal scale) or better. Only one eye per patient was included. Results: Small incision lenticule extraction: mean attempted spherical equivalent correction was −2.80 ± 0.63 D. Uncorrected distance visual acuity was 0.85 and 1.0 at days 1 and 5, respectively. At 3 months, mean spherical equivalent refraction was 0.02 ± 0.32 D (range: −0.5 to +0.75 D), mean cylinder was −0.24 ± 0.21 D (range: 0 to −0.75 D), mean uncorrected distance visual acuity was 1.27, mean efficacy index was 0.96, and mean safety index was 1.05. Uncorrected distance visual acuity was same or better than corrected distance visual acuity in 96%, astigmatism ⩽0.5 D in 98% and ⩽1 D in 100% of eyes, respectively. Advanced surface ablation: mean attempted spherical equivalent correction was −2.75 ± 0.5 D. Uncorrected distance visual acuity was 0.72 and 0.61 at days 1 and 5, respectively. At 3 months, mean spherical equivalent refraction was 0.22 ± 0.32 D, mean cylinder was −0.27 ± 0.27 D, mean uncorrected distance visual acuity was 1.21, mean efficacy index was 1.03, and mean safety index was 1.08. Conclusion: Small incision lenticule extraction for low myopia was found to be safe and effective with outcomes at 3 months similar to those obtained with advanced surface ablation while offering a quicker visual recovery.

scholarly journals Short-term eplerenone for treatment of chronic central serous chorioretinopathy; a prospective study

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Hamid-Reza Moein ◽  
Lauren W. Bierman ◽  
Eduardo A. Novais ◽  
Carlos Moreira-Neto ◽  
Caroline R. Baumal ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Prospective Study ◽  
Central Serous Chorioretinopathy ◽  
Subretinal Fluid ◽  
Enhanced Depth Imaging ◽  
Short Term ◽  
Chronic Central Serous Chorioretinopathy ◽  
Therapeutic Trials ◽  
Imaging Optical Coherence Tomography ◽  
A Prospective Study

Abstract Background Increased mineralocorticoid activity is one of the plausible causes of chronic central serous chorioretinopathy (CSCR) and mineralocorticoid inhibitors such as eplerenone have been investigated as its potential therapy. This study investigates the short-term safety and efficacy of oral eplerenone in patients with chronic CSCR. Patients and methods Prospective study of 13 eyes of 13 patients with the diagnosis of chronic CSCR. All patients received eplerenone 50 mg/day for 4 weeks. Enhanced depth imaging optical coherence tomography (OCT) was obtained. Best corrected visual acuity (BCVA), and OCT parameters including sub retinal fluid (SRF), choroidal thickness (CT) and central macular thickness (CMT), were measured manually. Results The mean SRF height decreased slightly at 1-month follow-up as compared to baseline, but the change was not statistically significant (94.18 ± 17.53 vs. 113.15 ± 18.69; p = 0.08). Subfoveal CT and CMT was significantly reduced as compared to baseline (6.6% [p = 0.002] and 7.05% [p = 0.04], respectively). The BCVA did not change significantly (20/28 vs. 20/30 [p = 0.16]). Conclusion This study suggests that oral eplerenone may be used as a safe and potentially effective treatment in chronic CSCR, however there are minimal short-term effects on subretinal fluid or visual acuity therefore therapeutic trials longer than one month are necessary to test its benefits. Trial registration Clinicaltrials.gov identification number: NCT01822561. Registered 3/25/13, https://clinicaltrials.gov/ct2/show/study/NCT01822561

scholarly journals Thickness profiles of the corneal epithelium along the steep and flat meridians of astigmatic corneas after orthokeratology

2020 ◽  
Author(s):  
Jiaqi Zhou ◽  
Feng Xue ◽  
Xingtao Zhou ◽  
Rajeev Krishnan Naidu ◽  
Yishan Qian
Keyword(s):  
Optical Coherence Tomography ◽  
Visual Acuity ◽  
Prospective Study ◽  
Corneal Epithelium ◽  
Fourier Domain ◽  
Corneal Epithelial ◽  
Epithelial Thickness ◽  
Corneal Epithelial Thickness ◽  
A Prospective Study ◽  
Lens Wear

Abstract Background: To investigate the changes in corneal epithelial thickness along the principle meridians of astigmatic corneas after six months of overnight spherical myopic orthokeratology (OK) lens wear. Methods: A prospective study. Fifty-seven subjects with up to 1.50 diopters (D) of corneal toricity wore spherical OK lenses for 6 months. Evaluations of OK lens fit, visual acuity, refractions and corneal toricity (CT) were performed. Fourier-domain optical coherence tomography (FD-OCT) was conducted to measure the corneal epithelial thickness (ET) along the principle meridians of corneal toricity over a diameter of 6mm. The means of △ET of the same diameter at individual meridians (△ETSm and △ETFm) were calculated and compared. Results: Visual acuity and refraction improved significantly after OK lens wear. △ETFm (-4.2±3.4μm) thinned more than △ETSm (-3.4±4.0μm, P=0.027) at 1.5mm in radius. △ETSm thickened more than △ETFm at 2.5mm (△ETSm: 4.1±5.1μm, △ETFm: 2.8±4.2μm, P=0.019) and 3.0mm (△ETSm: 5.0±5.0μm, △ETFm: 3.7±4.9μm, P=0.036).∣△ETSm - △ETFm∣ were significantly correlated with the baseline central CT at 2.0mm, 2.5mm and 3.0mm (2.0mm: r=0.285, P=0.032; 2.5mm: r=0.422, P=0.001; 3.0mm: r=0.239, P=0.027). ∣△ETSm - △ETFm∣was significantly correlated with the baseline peripheral CT at 2.5mm (r=0.299, P=0.028). Conclusions: Overnight wear of spherical OK lenses resulted in differential changes in the thickness profiles of the corneal epithelium between the steep and flat meridians in eyes with corneal toricity.

scholarly journals Prevalence of otitis media with effusion among school going children in Bangladesh

1970 ◽  
Vol 15 (1) ◽  
pp. 31-34 ◽  
Author(s):  
Mani Lal Aich ◽  
Akhil Chandra Biswas ◽  
Miraj Ahmed ◽  
Md Abul Hasnat Joarder ◽  
Pran Gopal Datta ◽  
...  
Keyword(s):  
Prospective Study ◽  
Key Words ◽  
Otitis Media ◽  
School Children ◽  
Rural Areas ◽  
Otitis Media With Effusion ◽  
Urban Community ◽  
Dhaka City ◽  
Key Words Otitis Media ◽  
A Prospective Study

A Prospective study was carried out from Jan 2000 Jan 2003, to find out the prevalence of OME among School children The study was done in Dhaka City and adjacent areas of Dhaka City in Savar, Munshigonj and Keranigonj, Altogether 280 Students aged 4-9 years were interviewed and examined. Nineteen percent children were found to have OME. In the urban community it was 17%, but in rural areas it was 21%. In our study children with OME were more in poorer people, smoker parents and bottle fed babies. Key words: Otitis media with effusion (OME), school children.DOI: 10.3329/bjo.v15i1.4308 Bangladesh J of Otorhinolaryngology 2009; 15(1): 31-34

“EFFECT OF ANTERIOR NASAL PACKING ON MIDDLE EAR FUNCTION AND HEARING: A PROSPECTIVE STUDY”

2020 ◽  
Vol VOLUME 8 (ISSUE 1) ◽  
pp. 9-14
Author(s):  
Sachin Jain
Keyword(s):  
Prospective Study ◽  
Key Words ◽  
Tympanic Membrane ◽  
Eustachian Tube ◽  
Middle Ear ◽  
Hearing Threshold ◽  
Nasal Packing ◽  
Middle Ear Pressure ◽  
A Prospective Study

Introduction- The Eustachian tube provides an anatomic communication between the middle ear and nasopharynx, and maintains pressure equality across the tympanic membrane. Objective- To see the effect of anterior nasal packing on Otological symptoms, middle ear pressure and hearing Materials and method- This prospective study was carried out during period of September 2018 till August 2019. 100 ears were taken in the study. Middle ear pressure and hearing threshold were evaluated by Tympanometry and Audiometry respectively. Results- Postoperatively two days after anterior nasal packing, there was increase in no. of patient ears with ear fullness, ear ache, tinnitus, hearing threshold and abnormal negative middle ear pressure. After removal of nasal packing up to twelve weeks, improvement in middle ear pressure and hearing threshold was seen. Conclusion- Anterior nasal packing causes decrease in middle ear pressure and increase in hearing threshold. Key words- Eustachian tube, Middle ear pressure, Hearing threshold

scholarly journals Reliability and benefits of clinical examination for determining the affected level in cervical compressive myelopathic patient: a prospective study of 44 cases

1970 ◽  
Vol 19 (2) ◽  
pp. 12-15
Author(s):  
Sharif Md Noman Khaled Chowdhury ◽  
Forhad Hossain Chowdhury ◽  
Md Rashed Mirjada ◽  
Md Raziul Haque ◽  
Mainul Haque Sarkar ◽  
...  
Keyword(s):  
Prospective Study ◽  
Key Words ◽  
Clinical Examination ◽  
Neurological Examination ◽  
College Teachers ◽  
Medical College ◽  
Compressive Myelopathy ◽  
A Prospective Study

Key words: neurological examination; compressive myelopathy; MRI; myelomere; myelomelaciadoi: 10.3329/jcmcta.v19i2.3864Journal of Chittagong Medical College Teachers' Association 2008: 19(2):12-15

scholarly journals Laser in situ keratomyleusis (LASIK) for correction of myopia and hypermetropia: Our one year experience

2009 ◽  
Vol 66 (12) ◽  
pp. 979-984
Author(s):  
Miroslav Vukosavljevic ◽  
Milorad Milivojevic ◽  
Mirko Resan ◽  
Vesna Cerovic
Keyword(s):  
Visual Acuity ◽  
Postoperative Complications ◽  
Intraoperative Complications ◽  
Mean Value ◽  
Spherical Equivalent ◽  
Surgical Method ◽  
The Third ◽  
Epithelial Ingrowth ◽  
A Prospective Study

Background/Aim. Laser in situ keratamileusis (LASIK) is the most commonly used refractive surgical method worldwide. The aim of this study was to examine the effectiveness and safety of LASIK in the correction of myopia and hyperopia. Methods. The study included myopic and hyperopic eyes with preoperative best corrected visual acuity (BCVA) = 1 (20/20), of the total number of 322 divided into 2 groups - 1) myopic eyes (n = 241) which were divided into 4 subgroups according to the myopia strength: a) ? -1.75 D (n = 23), b) from -2 to -3.75 D (n = 81), c) from -4 to -6.75 D (n = 113), d) ? -7 D (n = 24); 2) hyperopic eyes (n = 81) which were divided into 3 subgroups according to the hyperopia strength: a) ? +1.75D (n = 10), b) from +2 to +3.75 D (n = 46), c) ? +4 D (n = 25). Myopic and hyperopic eyes with preoperative BCVA ? 0.9 (eyes with ambliopia) were excluded from the study, as well as eyes with astigmatism > 1.5 D. To assess the effectiveness of LASIK we examined the percentage of eyes in the mentioned subgroups, which derived uncorrected visual acuity (UCVA) 6 month after the intervention to the following: a) UCVA = 1 (20/20) and b) UCVA ? 0.5 (20/40). To assess the safety of LASIK we examined the frequency of intraoperative and postoperative complications. A prospective study was performed in a 6-months follow-up period. Results. Refractive spherical equivalent (RSE) of myopic eyes was in the range from -0.75 D to -12 D. In the first subgroup preoperative mean value of RSE with standard deviation (mean RSE ? SD) was -1.39 ? 0.36 D, and 6 months after the LASIK 100% of the eyes had UCVA = 20/20. In the second subgroup preoperative mean RSE ? SD was -2.85 ? 0.50 D, and 6 months after LASIK 93% of the eyes had UCVA = 20/20, but 100% of the eyes had UCVA ? 20/40. In the third subgroup preoperative mean RSE ? SD was -5.03 ? 0.75 D, and 6 months after the LASIK 90% of the eyes had UCVA = 20/20, but 100% of the eyes had UCVA ? 20/40. In the fourth subgroup preoperative mean RSE ? SD was -7.68 ? 1.03 D, and 6 months after the LASIK 96% of the eyes had UCVA = 20/20, but 100% of eyes had UCVA ? 20/40. Refractive spherical equivalent of hyperopic eyes was in the range from +1 D to +6 D. In the first subgroup preoperative mean RSE ? SD was +1.50 ? 0.30 D, and 6 months after the LASIK 90% of the eyes had UCVA = 20/20, but 100% of the eyes had UCVA ? 20/40. In the second subgroup preoperative mean RSE ? SD was +2.65 ? 0.46 D, and 6 months after the LASIK 87% of the eyes had UCVA = 20/20, but 96% of the eyes had UCVA ? 20/40. In the third subgroup preoperative mean RSE ? SD was +4.62 ? 0.68 D, and 6 months after the LASIK 64% of the eyes had UCVA = 20/20, but 100% of the eyes had UCVA ? 20/40. In our study intraoperative complications appeared in 6 eyes (1.86%): thin flap in 2 eyes (0.62%) and epithelial defects in 4 eyes (1.24%), yet postoperative complications appeared in 10 eyes (3.10%): flap folds in 2 eyes (0.62%), epithelial ingrowth in 4 eyes (1.24%) and regression in 4 eyes (1.24%). Conclusion. LASIK is effective and safe refractive surgical method for correcting myopia up to -12 D and hyperopia up to +6 D.

Are We Missing Amblyopia? The Answer: Preschool Screening

PEDIATRICS ◽  
1977 ◽  
Vol 60 (4) ◽  
pp. 603-605
Author(s):  
Zane F. Pollard
Keyword(s):  
Visual Acuity ◽  
Prospective Study ◽  
Successful Treatment ◽  
Intensive Therapy ◽  
Common Finding ◽  
Conservative Estimate ◽  
Accurate Evaluation ◽  
Fellow Eye ◽  
Preschool Screening ◽  
A Prospective Study

Amblyopia is a reduced visual acuity in one eye that is not related to obvious structural or pathological anomalies.1 Most authors do not include organic causes of reduced vision such as cataract, retrolental masses, scarred cornea, chorioretinitis, and tumors in the group of patients having amblyopia. Visual acuity must be measured under monocular conditions. If a child is allowed to use his one normal eye while the visual acuity is measured, the amblyopia will go undetected. By carefully occluding one eye while the vision is measured in the fellow eye, an accurate evaluation is obtained. The diagnosis is made when there is at least a two-line difference in Snellen test types between the two eyes, e.g., 20/20 in one eye and 20/30 in the opposite eye. A conservative estimate has shown that at least 2% of the population has amblyopia.2 Amblyopia is a common finding in children with strabismus.3 If a child has strabismus, the parents and the pediatrician notice that something is wrong with the child's eyes. But, what about the child who has amblyopia and straight eyes? What percentage of children with amblyopia have straight eyes, and how can we be sure not to miss the diagnosis in these patients? The answer is early preschool screening. The earlier the amblyopia is detected, the better the prognosis for successful treatment and the shorter the duration of intensive therapy. A prospective study was carried out to determine what percentage of children with amblyopia have straight eyes. The results also show what percentage of patients with amblyopia might be missed if we check visual acuity only in children with strabismus.

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