good visual acuity
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2022 ◽  
Vol 8 ◽  
Author(s):  
Fang Zheng ◽  
Kairan Lai ◽  
Houfa Yin ◽  
Jingliang He ◽  
Yufeng Xu ◽  
...  

PurposeTo report a case of macular edema secondary to congenital retinal macrovessels (CRMs), which resolved spontaneously without any treatment.ObservationsA 39-year-old female presented with blurry vision of the right eye for one day. Fundus examination revealed a branch of artery and vein of the inferior retinal arcade crossing the horizontal raphe. Optical coherence tomography (OCT) through the fovea showed cystoid macular edema in the outer plexiform layer. However, no leakage of the vessels was noticed by fundus fluorescein angiography (FFA). Observation was recommended with close follow-up. Two weeks later, the patient returned with good visual acuity, and the macular edema was resolved spontaneously.ConclusionsMacular edema is a possible complication of CRM by increasing retinal capillary hydrostatic pressure. Treatment is not necessary for this kind of macular edema if no leakage of the vessels is noticed on FFA.


2021 ◽  
Author(s):  
Longqian Liu ◽  
Xiaohang Chen ◽  
Pengfan Chen ◽  
Yifan Wu ◽  
Jianglan Wang ◽  
...  

When human beings recognize the external world, more than 80% of the information come from visual function and visual system. Normal visual development and normal binocularity are the fundamental of good visual acuity and visual functions. Any abnormal visual experience would cause abnormality, such as refractive error, strabismus, amblyopia and other diseases. The patients with abnormal visual developments were reported to have abnormal, lonely, and other psycho problems. In this chapter, we will describe the normal developmental of visual function, summarize the abnormal developments and the correction or treatment.


2021 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Rifat Nurfahri ◽  
Delfitri Lutfi ◽  
Ismi Zuhria

Introduction: Ocular blast injury related to fireworks most often causing corneal erosion (29%), conjunctival erosion (11%), and conjunctival foreign body (10%) with children are more often than adults (65.9%:34.1%), and males far more often than female (71.9%:28.1%). Knowing proper management is very important to achieve the best result. Case presentation: We describe an ocular blast injury that experienced broad erosion and multiple foreign bodies on the corneal and pericorneal surface in the left eye and visual acuity decreased. The foreign body was scattered, and the fluorescein test was positive. We did proper foreign body extraction, irrigation, and ocular bandage. It was treated with chloramphenicol 0.5% eye ointment and homatropine eye drop. In two months, the patient’s left eye had clear cornea with a small scar formation near the visual axis. The visual acuity was 6/7 and BCVA was 6/6 with S-0.5 C-0.5 A 50° correction. Conclusions: Patients with ocular blast injury limited to superficial cornea erosion and and conjunctival erosion have a reasonable probability of achieving the best visual acuity. Foreign body extraction, proper irrigation, and topical medication show promising results. Scar formation near the visual axis can disrupt visual acuity however can be corrected in this case it can be corrected with glasses. Furthermore, public promotion and regulation to control firework using are very important.


2021 ◽  
Vol 15 ◽  
Author(s):  
Arvind Chandna ◽  
Saeideh Ghahghaei ◽  
Susan Foster ◽  
Ram Kumar

In clinical practice Cerebral Visual Impairment (CVI) is typically diagnosed by observation of abnormal visually guided behaviors which indicate higher visual function deficits (HVFDs) suggesting abnormal brain development or brain damage in a child with a suitable clinical history. HVFDs can occur even in the presence of good visual acuity and may remain undiagnosed because the good visual acuity does not prompt further investigation. This leads to a lack of understanding of the child’s visual perceptual difficulties. In a prospective study, we determined the spectrum of HVFDs in a group of children with history suggestive of brain damage or disruption of brain development and an independent diagnosis of CVI in comparison with typically developing children with a structured 51 question inventory, the Higher Visual Function Question Inventory (HVFQI-51) adapted from the Cerebral Vision Impairment Inventory, CVI-I. Here, we show that the HVFQI-51 can detect a range of HVFDs in children with CVI with good visual acuity and clearly distinguishes these children from typically developing children. HVFDs in our study group could mostly be attributed to dorsal stream visual processing dysfunction though the spectrum varied between children. We report on the inclusion of the “not applicable” response option in analysis providing a picture of HVFDs more in tune with the overall disability of each child. We also propose a subset of 11 questions (Top-11) which discriminate between children with CVI vs. behaviors seen in typical children: this provides both a potential screening tool for initial assessment of HVFDs and a measure of CVI-related impairment, and needs further validation in a secondary independent sample.


2021 ◽  
Vol 62 (14) ◽  
pp. 12
Author(s):  
Arvind Chandna ◽  
Nikolay Nichiporuk ◽  
Spero Nicholas ◽  
Ram Kumar ◽  
Anthony M. Norcia

2021 ◽  
pp. 112067212110573
Author(s):  
Cem Ozturkmen ◽  
Cem Kesim ◽  
Pinar Gunel Karadeniz ◽  
Afsun Sahin

Purpose: To evaluate the visual acuity, defocus curve and visual quality of life following bilateral implantation of a new hybrid extended depth of focus (EDOF)-multifocal diffractive intraocular lens (IOL). Methods: Patients who underwent cataract surgery with bilateral implantation of Tecnis Synergy IOL were enrolled in this study. The main outcomes were defined as uncorrected distant, intermediate and near visual acuities (UDVA, UIVA and UNVA, respectively), defocus curve and VF-14 questionnaire aimed for visual performance. Results: The mean ± SD values for binocular UDVA, UIVA and UNVA were −0.01 ± 0.04, 0.05 ± 0.03 and 0.03 ± 0.05 logMAR, respectively. Defocus curve showed a continuous vision above 0.16 logMAR between +0.50 D and −2.50 D. Patients had good visual performance with mean VF-14 scores above 3 points. Driving at night (3.47 ± 0.64) was found to be the most difficult task to perform. Spectacle independence was 100% for both distant and near vision. Conclusion: Bilateral implantation of Tecnis Synergy IOL in cataract patients shows good visual acuity and performance, covering a good visual range without any need of spectacles.


PLoS ONE ◽  
2021 ◽  
Vol 16 (10) ◽  
pp. e0259470
Author(s):  
Ryu Takabatake ◽  
Makiko Takahashi ◽  
Takuya Yoshimoto ◽  
Fumiaki Higashijima ◽  
Yuka Kobayashi ◽  
...  

Purpose To investigate the postoperative course of patients who explanted a diffractive bifocal intraocular lens (IOL) due to waxy vision and implanted with an extended depth of focus IOL. Methods This study evaluated 29 eyes of 25 patients who underwent diffractive bifocal IOL explantation followed by TECNIS Symfony® implantation because of dissatisfaction due to waxy vision at the Takabatake West Eye Clinic between January 2018 and November 2019. The indication criteria for this surgery were patients with uncorrected distance visual acuity of 0.05 logMAR or better, without eye diseases that may affect visual function, and no dissatisfactions about photic phenomena. We investigated patient demographics, uncorrected and corrected visual acuity, manifest refraction, contrast sensitivity, subjective symptoms, time to IOL explantation, explanted IOL type, and spectacle independence. Results The time to the IOL exchange after the initial IOL implantation was 55.3 ± 50.4 days (range: 14–196 days). The logMAR corrected distance visual acuity before and after IOL exchange were −0.13 ± 0.06 and −0.14 ± 0.06, respectively (p = 0.273). After IOL exchange surgery, the area under log contrast sensitivity function increased significantly from 1.07 ± 0.12 to 1.21 ± 0.12 (p < 0.001), and the waxy vision symptoms improved. The spectacle independence rate at the last visit was 88.0%. Conclusion For patients who complain of waxy vision despite good visual acuity after diffractive bifocal IOL implantation, exchange to extended depth of focus IOL was considered one of the useful surgical options.


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