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Evaluation of congenital colour vision deficiencies

Hahn CS

Three hundred patients who have congenital colour vision deficiencies were examined at the author's eye clinic for 3 years (1987-1990) using 5 types of colour vision tests: Hahn's, TMC's, Okuma's...
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Clinical Diagnosis and Treatment of Reflex Sympathetic Dystrophy and Causalgia

Park W, Hahn CS, Chung JS, Hwang KH, Kim SJ, Kim SY

  • KMID: 2200326
  • J Korean Pain Soc.
  • 1990 Dec;3(2):101-107.
No abstract available.
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A Case of Epidermal Cyst with Pilomatricoma like Change

Lee MG, Lee WS, Chun SI, Hahn CS

  • KMID: 2231384
  • Korean J Dermatol.
  • 1988 Feb;26(1):98-102.
We reported a case of subcutaneous mass in a 22-year-old lady having unusual histopathologic findings mixed with both features of pilomatricoma and epidermal cyst and the meanings of these peculiar...
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The Examination of Cheongsan Vision Chart

Hahn CS

  • KMID: 2336429
  • J Korean Ophthalmol Soc.
  • 1987 Jun;28(3):599-604.
The accuracy of vision test chart is very important in examination of the visual acuity. The author examined the accuracy of the Cheongsan Vision Chart which is an imitative print...
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A Simplified Vision Test Chart for Screening Test

Hahn CS

  • KMID: 2042557
  • J Korean Ophthalmol Soc.
  • 1986 Dec;27(6):991-994.
1. A simplified vision test chart which is composed of test types of arabic figures and Landolt's rings for 0.1, 0.3, 0.5, 0.8 and 1.0 was designed by the author....
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Ultrastructural Findings of Bowenoid Papulosis of the Genitalia

Hahn CS, Chun SI, Lee JB

  • KMID: 1678505
  • Korean J Dermatol.
  • 1982 Jun;20(3):479-487.
A 41 year-old man had dark pigmented papules and plaques, 4 to 15 mm in size, on the proximal portion of the dorsum of the penile shaft and pubic area...
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Comparative Study of Clinical Effect by Topical Application of Fabry's Solution and Fabry's Solution with Antibiotics (Chloramphenicol or Clindamycin) in Acne

Lee SN, Hahn CS, Park YK

  • KMID: 1678492
  • Korean J Dermatol.
  • 1982 Jun;20(3):397-405.
Antibiotic therapy for acne is now considered one of the most effective regimen. Thirty years ago, oral antibiotics were introduced for acne vulgaris and topical preparations have been available by...
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Progressive Cribriform and Zosteriform Hyperpigmentation

Lee JB, Hahn CS, Koh CJ, Kang JS, Lee SN

  • KMID: 1678288
  • Korean J Dermatol.
  • 1981 Aug;19(4):521-525.
No abstract available.
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Speckled Lentiginous Nevus

Hahn CS, Lee JB, Lee SH, Park YK, Koh CJ

  • KMID: 1678250
  • Korean J Dermatol.
  • 1981 Jun;19(3):353-358.
Speckled lentiginous nevus is a clinical variant of nevus-cell nevus first described by Stewart et al. in 1978. It is characterized by small, dark hyperpigmentated speckles superimposed on a tannish-brown...
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Color test using the Hahn Pseudoisochromatic Plates

Hahn CS

  • KMID: 1665741
  • J Korean Ophthalmol Soc.
  • 1980 Sep;21(3):239-246.
The Hahn Pseudoisochromatic Plates were used to test the color sense of 100 color defective subjects. Results and data obtained from the test showed the plates to be practically useful...
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Color test using the Hahn Double 15-Hue Test

Hahn CS

  • KMID: 1665739
  • J Korean Ophthalmol Soc.
  • 1980 Sep;21(3):235-237.
The Double 15-Hue Test. designed by the author in 1977, was used to examine the color sense of 100 color defective subjects. Results and data obtained from the test showed...
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Double 15-Hue Test

Hahn CS

  • KMID: 1902462
  • J Korean Ophthalmol Soc.
  • 1977 Dec;18(4):385-389.
The Double 15-Hue Test was designed to classify the types of congenital defective color vision as protan, deutan and tritan, and also to estimate its extent as strong(grade 3), medium(grade...
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Evaluation of the Hahn's Pseudoisochromatic Plates

Hahn CS

  • KMID: 1902446
  • J Korean Ophthalmol Soc.
  • 1977 Dec;18(4):297-298.
72 subjects with defective color vision that was detected by the screening test among 633 high school students were examined using a printed sample of the author's plates and other...
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Landolt's Ring Test Chart

Hahn CS

  • KMID: 2204582
  • J Korean Ophthalmol Soc.
  • 1975 Sep;16(3):187-188.
No abstract available.
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Study on the Pseudoisochromatic Tests for Color Defectives

Hahn CS

  • KMID: 2204581
  • J Korean Ophthalmol Soc.
  • 1975 Sep;16(3):179-188.
The author designed new pseudoisochromatic tests for detecting, classifying and estimating the degree of color defectives to meet the increasing need for a test of color vision in Korea. All...
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Accuracy of Some Korean Test Charts and "Hahn's New Test Chart"

Hahn CS

  • KMID: 1948601
  • J Korean Ophthalmol Soc.
  • 1967 Jun;8(1):51-54.
The test types used in three Korean test charts and "Hahn's New Test Chart" were measured in detajl to determine the accuracy with a caliper and micrometer which minimal limit...
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The Korean Near Vision Chart

Hahn CS

  • KMID: 1948642
  • J Korean Ophthalmol Soc.
  • 1964 Nov;5(2):7-10.
New Korean near vision chart was designed by the author and presented. As for the test types, photographically reduced optotypes of the Korean Test Chart for distance, published in Sep....
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