(OD-125)HYPOTONOUS MACULOPATHY AND NORMAL VISUAL ACUITY SECONDARY TO POST-TRAUMATIC CYCLODIALYSIS CLEFT

Objective: To present a case report of asymptomatic post-traumatic chronic hypotony in which the cause was undetected until phacoemulsification. Methodology: Case report. Results: A 55-year-old female’s left eye suffered blunt trauma causing hyphema and iritis, which were successfully managed; however, up to a year after, the intraocular pressure (IOP) ranged from 3 to 5 mmHg and the anterior chamber remained very shallow (Van Herick grade 4) with the lens–iris diaphragm pushed anteriorly with difficulty assessing the angles for recession or clefts . Visual acuity was initially 20/20 upon resolution of the hyphema but worsened to 20/40 a year after, presumably due to a developing cataract. Periodic dilated fundus examinations revealed no hypotony maculopathy or choroidal effusions. Prior to phacoemulsification, ultrasound biomicroscopy (UBM) revealed 360 degrees of mild peripheral choroidal effusions. During phacoemulsification, after intraocular lens insertion, direct gonioscopy revealed a supero-nasal cyclodialysis cleft (2 clock hours) and this was repaired intraoperatively with direct cyclopexy through a partial thickness scleral flap. Postoperatively, the vision improved to 20/20 without correction and the IOP normalized to 16 to 18 mmHg. Conclusion: Chronic hypotony post-trauma may be asymptomatic and the cause may not be clinically evident and may be detected by UBM (choroidal effusion). In our case, the proximate aetiology (cyclodialysis cleft) of the effusion was only observed intraoperatively after phacoemulsification for which cyclopexy was performed which increased the IOP to physiologic levels.

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Possibilities of scleral lenses for visual rehabilitation of patients with corneal scars

Modern technologies in ophtalmology ◽

10.25276/2312-4911-2021-5-157-161 ◽

2021 ◽

pp. 157-161

Author(s):

O.I. Ryabenko ◽

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O.M. Selina ◽

E.M. Tananakina ◽

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...

Keyword(s):

Visual Acuity ◽

Contact Lenses ◽

Efficacy And Safety ◽

Visual Rehabilitation ◽

Optical Correction ◽

Vision Correction ◽

Post Traumatic ◽

Key Words Cornea ◽

Irregular Astigmatism ◽

Spectacle Correction

Purpose. To analyze the efficacy and safety of SCL in patients with corneal cicatricial changes and other concomitant conditions. Material and мethods. The study included 19 patients (20 eyes) with cicatricial deformity of the cornea of various etiology, who were fitted with scleral contact lenses. Results and discussions. The use of SCL is possible in post-traumatic pathology, such as corneoscleral scars with or without aphakia, as well as after keratitis with an outcome in cicatricial deformity, cicatricial changes after a burn. A significant increase in visual acuity compared with spectacle correction has been proven. Depending on the topography of the scar, it is possible to select scleral lenses such as Oblate and Prolate, as well as with different versions of the support zone: both toric and quadratic. Conclusion. Scleral lenses can be successfully used for optical correction in patients with cicatricial changes in the cornea and other concomitant post-traumatic conditions of ineffectiveness of other methods of visual rehabilitation. Key words: cornea, lenses, vision correction, contact lenses, visual rehabilitation, scleral lenses, corneal scars, post-traumatic astigmatism, aphakia, keratitis, toric lenses, quadratic lenses, astigmatism, irregular cornea, regular cornea, regular astigmatism, irregular cornea, irregular astigmatism, prolate, oblate.

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On the need for a legislative norm for high degrees of hypermetropia in relation to military-combatant services

Kazan medical journal ◽

10.17816/kazmj48446 ◽

1902 ◽

Vol 2 (10) ◽

pp. 567-567

Author(s):

V. F. Velyamovich

Keyword(s):

Visual Acuity ◽

Military Service ◽

Normal Visual Acuity ◽

The Law

As for the current Russian laws on anomalies in the organs of vision that allow or restrict the ability to perform military service, hyperopia, for which the law does not specify a predetermined degree, is completely ignored, compatible with the requirements of military service. Any hyperopia, no matter how high its degree of abnormal refraction, is recognised as extremely suitable for military service, unless it has a normal visual acuity without glasses.

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An Unusual Phenotype in Dutch Patients With Oculocutaneous Albinism Type 4: Evident Hypopigmentation Without Other Ocular Deficits.

10.21203/rs.3.rs-209795/v1 ◽

2021 ◽

Author(s):

Charlotte C Kruijt ◽

Nicoline E Schalij-Delfos ◽

Gerard C de Wit ◽

Ralph F Florijn ◽

Maria M van Genderen

Keyword(s):

Visual Acuity ◽

Visual Pathways ◽

Oculocutaneous Albinism ◽

Novel Mutations ◽

Normal Visual Acuity ◽

Diagnostic Center ◽

Foveal Hypoplasia ◽

Unusual Phenotype ◽

First Time ◽

Dutch Cohort

Abstract Purpose: To describe the phenotype of Dutch patients with oculocutaneous albinism type 4 (OCA4).Patients and Methods: We collected data on pigmentation (skin, hair, and eyes), visual acuity (VA), nystagmus, foveal hypoplasia, chiasmal misrouting, and molecular analyses of nine Dutch OCA4 patients from the Bartiméus Diagnostic Center for complex visual disorders.Results: All patients had severely reduced pigmentation of skin, hair, and eyes with iris transillumination over 360 degrees. Three unrelated OCA4 patients had normal VA, no nystagmus, no foveal hypoplasia, and no misrouting of the visual pathways. Six patients had poor visual acuity (0.6 to 1.0 logMAR), nystagmus, severe foveal hypoplasia and misrouting. We found two novel mutations in the SLC45A2 gene, c.310C>T; p.(Pro104Ser), and c.1368+3_1368+9del p.(?).Discussion: OCA4 patients of this Dutch cohort all had hypopigmentation of skin, hair, and iris translucency. However, patients were either severely affected with regard to visual acuity, foveal hypoplasia, and misrouting, or visually not affected at all. We describe for the first time OCA4 patients with an evident lack of pigmentation, but normal visual acuity, normal foveal development and absence of misrouting. This implies that absence of melanin does not invariably lead to foveal hypoplasia and abnormal routing of the visual pathways.

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