1.Treatment of high hyperopia by clear lens extraction and intraocular lens implantation
Journal of Vietnamese Medicine 2005;0(3):48-53
This study comprised 9 eyes with severe myopia of 7 patients (4 male, 3 female) between 36 and 50 years, having phacoemulsification, intraocular lens implantation with suitable capacity. Follow up duration was 12 months. Results: the preoperative uncorrected visual acuity was < 1/10 in all patients. Postoperatively, 55.5% cases with uncorrected visual acuity and 66.7% cases achieved the best corrected visual acuity of 5/10 or better. The mean preoperative hyperopic spherical equivalent was +6,89 ± 1,67D reduced to +0,75±0,62D. Postoperative complications were low: 1 eye had posterior capsule opaque (11,1%), 1 eye had inflammatory membrane. No intraoperative complications
Hyperopia
;
Therapeutics
2.Refractive errors in Filipino eyes in a single-center study population
Philippine Journal of Ophthalmology 2010;35(2):50-55
Objective:
We determined the frequency of refractive errors among Filipino patients
undergoing refractive or cataract screening at an ambulatory eye-care center,
correlated them with demographic and ophthalmic variables, and compared
refractive and keratometric astigmatism.
Methods
Clinical records of 666 consecutive patients who had optical interferometry
were reviewed and the demographic and clinical parameters obtained were
subjected to statistical analyses.
Refractive Errors
;
Astigmatism
;
Myopia
;
Hyperopia
3.Clinical Evaluationnof Monovision Induced by Laser Thermal Keratoplasty (LTK).
Kyeon AHN ; Dal Woong HUH ; Woo Jung KIM ; Eui Sang CHUNG
Journal of the Korean Ophthalmological Society 2003;44(5):1036-1043
PURPOSE: To evaluate clinical effects of laser thermal keratoplasty (LTK), LTK was performed in patients with presbyopia or hyperopia. METHODS: LTK was performed in 38 patients who was older than 45 between May and December 2001. Preoperative contact lens fitting and wearing for patients to experience the monovision was tried in all patients for one week. With LTK, we intended patients used dominant eyes for distance vision and nondominant eyes for near vision. Patients' satisfaction, refractive change and near visual acuity were evaluated for least 3 months after surgery. RESULTS: The mean improvement of near vision was 5.16 lines by test with Korean near vision chart. 79% (30 of 38) of patients were satisfied with the results of LTK. CONCLUSIONS: Monovision with LTK is thought to be a good option in patients with presbyopia.
Corneal Transplantation*
;
Humans
;
Hyperopia
;
Presbyopia
;
Visual Acuity
4.Occlusion Effects on Anisometropic Amblyopia.
Sung Bin PARK ; Jung Yoon KWON
Journal of the Korean Ophthalmological Society 2001;42(12):1753-1759
PURPOSE: To evaluate the effects of occlusion therapy on anisometropic amblyopia and investigate the factors that influence on the final vision. METHODS: Fifty two patients with anisometropic amblyopia, whose age ranged from 3 to 12 years, were treated with full and partial occlusion therapy. RESULTS: The degree of anisometropia was 3.23+/-1.99 D in hyperopia group and 2.00+/-0.98 D in myopia group. The best corrected visual acuity and final vision were 0.29+/-0.14 and 0.52+/-0.22 in hyperopia group, while 0.34+/-0.16 and 0.63+/-0.16 in myopia group. But statistically significant difference was not found between two groups. The best corrected visual acuity was significantly correlated with the degree of anisometropia. The final vision was also significantly correlated with the degree of anisometropia. As expected, the final visual acuity was strongly correlated with the best corrected visual acuity. But no statistically differences were found based on the age of initial treatment and sexual difference. CONCLUSIONS: The severity of amblyopia and the effect of occlusion therapy were more correlated with the degree of anisometropia than the age of initial treatment and the type of anisometropia.
Amblyopia*
;
Anisometropia
;
Humans
;
Hyperopia
;
Myopia
;
Visual Acuity
5.Bilateral Medial Rectus Recession Posterior to the Functional Equator in Esotropia Over 40 Prism Diopters.
Hyung Jin MOON ; Sang Woo PARK ; Yeoung Geol PARK
Journal of the Korean Ophthalmological Society 2009;50(3):429-434
PURPOSE: To investigate bilateral medial rectus recession by considering functional equator as a surgical guideline in esotropia over 40 prism diopters (PD). METHODS: Forty-one patients who underwent bilateral medial rectus recession, and were followed-up for more than 12 months, were reviewed. The success rate was compared between group 1 and group 2, which were divided to recession site from the functional equator posterior, and also between the hyperopia group and myopia group according to refraction. RESULTS: According to preoperative deviation angle, 21 patients underwent recession to less than 10 mm posterior to the functional equator (group 1) and 20 patients had recession to 1.5 mm to 2.0 mm posterior to the functional equator (group 2). No significant difference in success rate between group 1 (71.4%) and group 2 (75.0%) was detected at the last follow-up. When divided into a hyperopia group (26 patients) and myopia group (15 patients), the success rate in the myopia group was higher than in the hyperopia group, as observed at the last follow-up, but the difference was not significant. There was 1 case of overcorrection in each group. CONCLUSIONS: A successful outcome was achieved in 30 patients (73.2%), and overcorrection in 2 patients (4.9%) when recessed to 2.0 mm posterior to functional posterior in esotropia over 40PD.
Esotropia
;
Follow-Up Studies
;
Humans
;
Hyperopia
;
Myopia
6.Interrelationship between Refractive Error and Angle kappa.
Nam Kyung LEE ; Jeong Im LEE ; Chung Sook AHN
Journal of the Korean Ophthalmological Society 1992;33(2):171-175
Distributions of angle kappa and of cycloplegic refraction and their association were studied. The subjects were 282 nonstrabismic Korean children, aged from 6 years to 11 years. who visited Ewha Women University Hospital from December 1990 to March 1991. The angle kappa was measured by major amblyoscope, and refraction was done under the cycloplegic state. The results were as follows: The frequency of angle kappa was positive. negative and 0 degree in decreasing order. The average values of refractive error and angle kappa were -1.03 +/- 2.20 degrees dipter and +1 34 +/- 1.33 degrees. The average values of angle kappa for hypermetropia, emmettopia and myopia were +2.52 +/- 0.81 degrees, +1.71 +/- 1.03 degrees and +0.90 +/- 1.37 degrees. And these values were significantly different from each other.
Child
;
Female
;
Humans
;
Hyperopia
;
Myopia
;
Refractive Errors*
7.Clinical Evaluation of Recent 4 years' Posterior-Chamber Lens Implantation.
Dong Ho YOUN ; Dong Gyu CHOI ; Jeong Min HWANG ; Jin Hak LEE ; Woong San CHOI
Journal of the Korean Ophthalmological Society 1989;30(4):521-526
From October, 1984 to December, 1988, 1177 cases of posterior chamber lens were implanted. Clinical study was done on 1030 cases which could be followed up for more than 2 months. The results were as follows: 1. The best corrected visual acuity of 0.5 or better was in 981 cases(95.2%) and 1.0 or better was in 676 cases(65.6%). 2. the best corrected visual acuity was achieved with the correction of average -1.07 +/- 1.28D by spherical equivalent. 3. The postoperative astigmatism was average 1.57 +/- 1.70D. 4. The difference between the calculated prediction of postoperative refraction and the actual postoperative refraction was less than 1.00D in 64.1% and calculated prediction tended to be biased toward hypermetropia with mean error of 0.37 +/- 1.21D.
Astigmatism
;
Bias (Epidemiology)
;
Hyperopia
;
Visual Acuity
8.Cycloplegic Refraction in Esotropic Children: Cydopentolate versus Atropine.
Journal of the Korean Ophthalmological Society 1992;33(10):988-992
Cycloplegic refraction with 1% cyclopentolate and I % atropine was performed in esotropic children younger than 6 years. The purpose of this study was to find clinical factors related with differencs in refractive changes between cyclopentolate and atropine Additionally, the periodic refractive changes at the first, second and third day during performing traditional atropinization were evaluated. The results were as follows: The refractive state after using 1 % cyclopentolate was + 5.00 diopters in average and that after using 1% atropine was +5.77 diopters in average (p
Atropine*
;
Child*
;
Cyclopentolate
;
Esotropia
;
Humans
;
Hyperopia
9.Clinical Features of Refractive Accommodative Esotropia According to Degree of Hypermetropia.
Jong Hwa JUN ; Young Chun LEE ; Se Youp LEE
Journal of the Korean Ophthalmological Society 2008;49(4):617-622
PURPOSE: This study examined differences in clinical patterns according to the hyperopia level in refractive-accommodative esotropia patients. METHODS: Ninety-four refractive-accommodative esotropia patients were divided into 3 groups according to hyperopia level: group 1, > or = +1.00D and < +3.00D group 2, > or = +3.00D and < +5.00D and group 3, > or = +5.00D. The following factors were analyzed retrospectively: the initial corrective visual acuity, the final corrective visual acuity, the angle of esotropia with or without hyperopic correction, the recovery time to orthophoria after hyperopic correction, the change in hyperopia level, and the frequency of amblyopia. RESULTS: The angles of esotropia without hyperopic correction in groups 1, 2 and 3 were 18.4+/-7.3PD, 22.9+/-8.5PD, and 25.7+/-10.4PD, respectively. The angle of esotropia was found to be significantly greater in the group with the higher level of hyperopia (P=0.01). The monthly change in hyperopia in groups 1, 2 and 3 was 0.018+/-0.02D, 0.028+/-0.03D and 0.043+/-0.03D. The change was greater in the group with the higher level of hyperopia (P=0.009). CONCLUSIONS: In refractive-accommodative esotropia patients, the more the hyperopia without correction increases, the more the angle of esotropia without correction increases, and the larger the reduction of hyperopia after correction becomes.
Amblyopia
;
Esotropia
;
Humans
;
Hyperopia
;
Visual Acuity
10.Comparison of Autorefraction and Clinical Refraction with or without in Children.
Moon Jeong CHOI ; Seung Hee BAEK ; Sang Mook GONG
Journal of the Korean Ophthalmological Society 2005;46(5):837-846
PURPOSE: The difference in the values between autorefraction and clinical refraction with or without cycloplegia in children were analyzed as a function of age. METHODS: One hundred and twenty five children (230 eyes) with myopia or hyperopia were classified into three age groups. Their ages ranged from 2 to 14. They were examined with a Cannon RK-5 autorefractor, and experienced personnel the clinical refraction before and after cycloplegia. Discrepancies beyond 0.5 diopter in spherical equivalent, spherical and cylinder power were regarded as being significant and the discrepancy rates (%) were calculated. The mean absolute differences in the values of each refractive component in myopia and hyperopia were also compared separately according to. RESULTS: All the differences by cycloplegia were significantly smaller in the myopia patients over 5 years old. However, only the discrepancy rates of the spherical equivalent and the sphere component between the clinical manifest refraction and the cycloplegic refraction were significantly smaller in the higher age groups. The comparisons between the clinical and autorefraction revealed significant difference between the age groups only in those with myopia with cycloplegia. CONCLUSIONS: There were differences between the cycloplegic refraction and non-cycloplegic refraction values particularly in myopia patients under five years old and in all hyperopic patients. Autorefraction showed differences from the clinical refraction in both myopia and hyperopia regardless of their ages particularly in those without cycloplegia. Therefore, autorefraction and clinical refraction should be used with caution in children.
Child*
;
Child, Preschool
;
Humans
;
Hyperopia
;
Myopia