Effects of wearing myopia glasses on eye movement and scleral blood supply.

The present study examined the effect of wearing myopia glasses on eye movement and scleral blood supply. For this purpose, a total of 30 individuals were recruited for the present self-control study. Under the same fixation distance, the individuals wore 0.00 D and -10.00 D glasses. The amount of eye movement generated when shifting from gazing at a central point to a point light source located at the left or right was measured and compared between the two glasses. The results revealed that the range of eye movement was significantly reduced after wearing -10.00 D glasses. When gazing at the right point light source from the central point, the difference between the rotation distances of the right eye when wearing the 0.00 D glasses and the -10.0 D glasses was 0.73±0.45 mm (t=8.93, P<0.01) and that of the left eye was 0.73±0.43 mm (t=9.34, P<0.01). Similar results were obtained when the left point light source was viewed from a shift in gaze from the central point. On the whole, the present study demonstrates that wearing concave lenses limits eyeball movement. Restricted eyeball movement can affect vascular changes within the extraocular muscles and blood flow, thereby affecting the blood supply to the anterior segment and sclera of the eye, potentially accelerating the development of myopia.

Comparison of IOL Power Calculation Formulas for a Trifocal IOL in Eyes With High Myopia.

PURPOSE: To analyze the results of new intraocular lens (IOL) formulas (Emmetropia Verifying Optical [EVO], Kane, Olsen, and Barrett Universal II), traditional formulas (Haigis and SRK/T), and modified Wang-Koch axial length adjustment formulas with the SRK/T and Holladay 1 (SRK/Tmodified-W/K and H1modified-W/K) in Chinese patients with long eyes. METHODS: In this retrospective case series, patients with an axial length of 26 mm or greater having uneventful femtosecond laser-assisted cataract surgery with one trifocal IOL model were enrolled. The actual postoperative spherical equivalent of the manifest refraction was compared with the formula-predicted refraction based on the implanted IOL power. A subgroup analysis was performed based on the axial length. RESULTS: A total of 113 eyes was enrolled. Using User Group for Laser Interference Biometry constants, the modified Wang-Koch formulas had the lowest percentage of eyes with hyperopic outcomes. The Barrett Universal II, Olsen, Kane, and EVO 2.0 formulas produced a statistically lower median absolute error than the SRK/Tmodified-W/K and SRK/T formulas (P < .05). The Barrett Universal II formula produced higher percentages of eyes within ±0.50 diopters (D) of the prediction error than the SRK/T formula (P < .05). In eyes with axial lengths of less than 28 mm, there were no significant differences in the prediction accuracy of the eight formulas. In eyes with axial lengths of 28 mm or greater, the new IOL formulas yielded the lowest median absolute error, followed by the H1modified-W/K and Haigis formulas. The SRK/Tmodified-W/K formula had the highest mean absolute error and the lowest percentages of eyes within ±0.25 and ±0.50 D of endpoint. The traditional formulas yielded the highest risk of refractive surprise. CONCLUSIONS: All formulas achieved good results in eyes with axial lengths of less than 28 mm with trifocal IOL implanted. The newer formulas tend to produce better outcomes for eyes with high myopia. The SRK/Tmodified-W/K formula provided improved accuracy only in eyes with axial lengths of 30 mm or greater. [J Refract Surg. 2021;37(8):538-544.].

Modified phacoemulsification plus goniosynechialysis compared with conventional surgery for cataract and glaucoma.

Optic nerve damage and visual impairment caused by glaucoma affect 66.8 million people worldwide, and causing bilateral blindness in 6.7 million people. Surgery is the main method for the treatment of cataract with glaucoma. In recent years, clinicians have increasingly paid attention to and applied phacoemulsification and intraocular lens implantation combined with goniosynechialysis for the treatment of cataract with angle-closure glaucoma. However, for patients with complicated cataract, the high ultrasonic energy of traditional phacoemulsification can largely damage the corneal endothelium. Modified phacoemulsification (lower ultrasonic energy) and intraocular lens implantation have now achieved certain efficacy. The efficacy and safety of modified phacoemulsification plus goniosynechialysis compared with conventional surgery for cataract and glaucoma was investigated. A total of 125 patients who underwent goniosynechialysis combined with phacoemulsification and intraocular lens implantation were enrolled in the control group, while 179 patients treated by modified phacoemulsification and intraocular lens implantation combined with goniosynechialysis were enrolled in the research group. The visual acuity and intraocular pressure were observed before and 6 months after surgery in both groups, and the incidence of complications was analyzed. After treatment, there were more patients with visual acuity of 0.2-0.4 and >0.4 in the research group than in the control group (P<0.05). The incidence of corneal edema and anterior chamber inflammation was lower in the research group than in the control group (both P<0.05), while the preoperative and postoperative intraocular pressure, central anterior chamber depth, angle-opening distance, and peripheral iridocorneal adhesions were not significantly different between the two groups (all P>0.05). Modified phacoemulsification and intraocular lens implantation plus goniosynechialysis for cataract with glaucoma can better improve the visual acuity, as well as effectively reduce corneal edema and anterior chamber inflammation.

Visual quality and performance following bilateral implantation of TECNIS Symfony intraocular lenses with or without micro-monovision.

Purpose: To evaluate the visual quality and performance of TECNIS Symfony intraocular lenses (IOLs) implanted with or without micro-monovision approach. Setting: Chongqing Aier Mega Eye Hospital, Chongqing, China; Daping Hospital of Army Medical University, Chongqing, China. Design: Prospective study. Methods: The study comprised 70 cataract patients who had bilateral implantation of TECNIS Symfony extended range of vision IOLs, either with intended micro-monovision (monovision group: 35 patients) or with intended emmetropia (control group: 35 patients). Visual acuity, modulation transfer function (MTF), defocus curve, spectacle independence, and photic phenomena were analyzed 3 months postoperatively. Results: There was no significant difference between the two groups in binocular uncorrected visual acuity at distance. Mean binocular uncorrected visual acuity at intermediate (monovision: 0.81 dec; control: 0.58 dec) and near (monovision: 0.59 dec; control: 0.30 dec) were significantly better in the monovision group. In the monovision group, the difference of MTF values between the dominant and the non-dominant eyes was not statistically significant and MTF values were within the normal range for both eyes. Spectacle independence at intermediate and near was statistically significantly higher in the monovision group compared to the control group. The incidence of photic phenomena was similar in both groups. Conclusion: Micro-monovision implantation of TECNIS Symfony IOLs provided a superior range of visual acuity from far to near and higher spectacle independence compared to a control group targeted for emmetropia.

[Clinical observation on treatment of cerebral infarction-induced broca aphasia by Tiaoshen Fuyin acupuncture therapy combined with language training].

OBJECTIVE: To observe therapeutic effect of Tiaoshen Fuyin acupuncture therapy on cerebral infarction-induced Broca aphasia. METHODS: Sixty cases were randomly divided into an observation group and a control group, 30 cases in each group. The observation group were treated with Tiaoshen Fuyin acupuncture therapy and language training, and the control group with simple language training. For the acupuncture treatment, Sishencong (EX-HN 1), Benshen (GB 13), Shenting (GV 24), Lianquan (CV 23), Xinshu (BL 15), Shentang (BL 44), Shendao (GV 11), Lingtao (HT 4) were selected and language training included training of phonatory organs in mouth, the mouth shape, sound, spoken language expression and practical exchange ability. They were treated for 5 therapeutic courses. Language examination was conducted once each before and after treatment with "Aphasia Battery of Chinese" (ABC method). RESULTS: The therapeutic effect of Tiaoshen Fuyin acupuncture therapy combined with language training was better than that of simple language training. CONCLUSION: Tiaoshen Fuyin acupuncture therapy combined with language training can significantly improve language function and increase life quality in the patient of cerebral infarction-induced Broca aphasia.

[Advances of studies on acupuncture and moxibustion for treatment of spastic paralysis after stroke].

OBJECTIVE: To introduce progresses of studies on acupuncture and moxibustion for treatment of spastic paralysis after stroke. METHODS: The literature about acupuncture and moxibustion for treatment of spastic paralysis after stroke in recent ten years were reviewed from the clinical and mechanism studies and so on. CONCLUSION: A great number of clinical and mechanism studies have proved that acupuncture and moxibustion therapy can relieve spastic paralysis after stroke, with better therapeutic effect, no side-effects, flexible selection of acupoints and more methods, but clinical and mechanism studies still need further to be improved and raised.

[Observation on therapeutic effects of centro-square needling and triple needling on ankylosing spondylitis].

OBJECTIVE: To probe therapeutic effects of centro-square needling and triple needling on ankylosing spondylitis. METHODS: Sixty cases of spondylitis were randomly divided into a treatment group and a control group. The treatment group were treated with centro-square needling and triple needling, and the control group with routine acupuncture therapy, with motortherapy combined in the two groups. RESULTS: Both the therapeutic methods were effective, but the therapeutic effect in the treatment group was significantly better than that in the control group (P < 0.05). CONCLUSION: Acupuncture combined with motortherapy has definite therapeutic effect on ankylosing spondylitis, with centro-square needling and triple needling having better therapeutic effect.