Comparison of Clinical Techniques to Assess the Near Accommodative Response

Rosenfield, Mark; Portello, Joan K.; Blustein, Glen H.; Jang, Caterina

doi:10.1097/00006324-199606000-00005

Cited by 45 publications

(55 citation statements)

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“…Studies have suggested that when used in similar viewing conditions, Nott retinoscopy and objective autorefraction measurements of accommodative response are comparable at a range of target distances. [30][31][32] Examiners used a retinoscope to determine the refractive state of the eye while the subject viewed an animated cartoon movie on a 15 cm 3 8.5 cm LCD screen mounted on a motorized track. The subject's viewing distance was stabilized by using a forehead rest.…”

Section: Figurementioning

confidence: 99%

Accommodative Performance of Children With Unilateral Amblyopia

Manh

Chen

Tarczy-Hornoch

et al. 2015

Investigative Ophthalmology & Visual Science

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Section: Figurementioning

confidence: 99%

Accommodative Performance of Children With Unilateral Amblyopia

Manh

Chen

Tarczy-Hornoch

et al. 2015

Investigative Ophthalmology & Visual Science

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“…The amplitude of accommodation can be measured in diopters (D) and represents the inverse of the distance of the fixation in meters. For evaluation of the amplitude of accommodation in this case, we used Sheard's technique [16][17][18]. The amplitude of accommodation presented increasing of 3.50 D after the needling.…”

Section: Discussionmentioning

confidence: 99%

“…We performed Bird pecking technic [17,18]. This technic consists of to manipulate the needle up and down, like a Bird pecking the ground.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Amplitude of Accommodation in a Presbyopic Patient Undergoing Stimulation of Sizhukong Acupuncture Point (TH23) – Case Report

Oliveira¹

2018

AOVS

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Submit Manuscript | http://medcraveonline.com but Helmholtz's hypothesis [5,6] is one of the most accepted theories that try to explain it. According to the Helmholtz´s model, the contraction of the ciliary muscle would allow relaxation of crystalline capsule, which, by elastic contraction, would deform the lens, increasing its thickness and, therefore, the optical power. When the ciliary muscle relaxes, the zonular tension will increase, tensioning the lens. This tension reduces its anteroposterior dimension and increases the focal distance.The aim of acupuncture is to treat health problems by application of stimuli through the skin, with insertion of needles at specific points [7,8]. The mechanisms of action of acupuncture are unknown, but evidences point to possible neurochemical phenomena [9][10][11]. Ancient reports in the literature of Traditional Chinese Medicine (TCM) show that the stimulation of certain acupuncture points can improve visual acuity, particularly in cases of myopia and presbyopia [12]. To determine the effects of near visual acuity, we chose the Sizhukong acupuncture point (TH23), among other related points such ST4, B2, GB 37, ST 30 and L3 [13]. This article reports a clinical case of a presbyopic subject undergoing stimulation of the Sizhukong acupuncture point (TH23) and analyzes the behavior of her vision at near after needling. Case ReportG. A. L., Female, 56 years old, Brazilian, native of Guaratinga -Ba, from São Paulo, housewife, elementary school incomplete, catholic. This patient complaint of progressive loss of vision at near for about fifteen years ago. She refers low vision at near with her current reading glasses (+1.50 SPH). There is not pathological personal history, regular use of medication, or surgical history. The patient was orthophoric and remained orthophoric under cover/uncover test. Biomicroscopy and fundoscopy were normal. It could be observed phacosclerosis, but no cataracts. Tonometry In the Table 1 below the parameters of the patient's ophthalmic examination at first day are presented: Patient was under gone to bilateral needling of Sizhukong acupuncture point (TH23) with 25 X 40mmstainless steel needle at 7:20 a.m. The acupuncture's technic consisted of to prick the selected point before to leave needle resting for 20 minutes. After acupuncture session, the patient remained 20/20 in both eyes and gradually showed gain of visual acuity at near until to reach J1 line on Jaeger's table, without addition.No miosis was observed associated with gain of the amplitude of accommodation. After acupuncture session, visual acuity, amplitude of accommodation, vision at near and addition were evaluated at 7:50 a.m., 9:00 a.m., 14 p.m., 16 p.m., and 20 p.m. The findings of second day of examination are displayed in the next Table 2: It is notorious the gain of the accommodation amplitude of 3.50 D after the needling of Sizhukong acupuncture point (TH23).

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“…[27][28][29][30] The subjective methods depend on patient cooperation and are a sum of the amplitude of pseudophakic accommodation and pseudoaccommodation. The objective methods with different ciliary muscle medications (pilocarpin or cyclopentolate) can overestimate the actual IOL movement as it is shown possible in the recent study too.…”

Section: Discussionmentioning

confidence: 99%