Know how colour blind tests are game-changers for students — because the only place learning should be challenging is on the test, not in seeing it!

Educators, take a note.

Since the world has become more pictorial in present times, colour plays a vital role in education through the structuring of information, enhancement of memory, and making the learning process interesting.

For students with colour blindness, especially the red-green colour vision deficiency, finding their way in such educational endeavours may prove relatively challenging.

Colour-blind tests in school are very crucial in identifying such challenges early enough to give all students a fair chance.

In our all-inclusive blog we will dive into the importance of colour-blind tests in education, their effects on learning, the various test types used, the benefits of early detection, the role of colour vision deficiency glasses, case studies, and resources that exist for assisting a colour-blind student.

Why Are Colour Blind Tests Important in Education?

Tests for colour blindness play an important role in education. They make students aware of their condition (as mostly many do not even realise this issue until they have to identify red-green colour contrasts during projects or elsewhere) allowing the teachers to mould their strategies according to the needs of students and subsidise colour vision deficiency glasses for students.

Colours are usually applied to educational materials to indicate the importance of certain information and differentiate between subjects, and also the complex data. In this way, without a proper perception of colours, a student might fail to notice these hints, thus affecting the visual part of his/her learning experience.

Prevalence of Colour Blindness in Students: A Case Study

In a research conducted by the International Journal of Medical and Dental Sciences, students of 12 schools across India were screened in the age group of 6 to 15 years. The study included 3259 students, with 1683 (40.44%) males and 1584 (59.55%) females. Colour blindness was observed in 61 students (1.89%), with 55 (1.69%) males and 6 (0.184%) females. Among the colourblind, 56 (91.8%) were protanopes, 5 (8.2%) were deuteranopes, and none were tritanopes. In protanopes, 52 (92.8%) were males and 4 (7.2%) were females, whereas in deuteranopes, 4 (66.7%) were males and 2 (33.3%) were females.

How Colour Blindness Affects Learning and Classroom Experience

• Affects Interpreting Visual Aids: Teachers use charts, graphs, and colour-coded materials as aids for explanations about concepts. For students who have colour blindness, visual aids become challenging to interpret.

• Challenges in Subjects like Science and Art: Subjects which involve a very critical aspect of colour differentiation, like biology for instance, where one may identify different types of plants, or art, where one learns about colour mixes and theories, may be an added challenge for the colour blind.

• Reading and Writing: With colour blindness simple things like following instructions, identifying colour-coded objects, participating in games, or using coloured pens gets hard. This hampers the efficiency of students and is even more challenging to cope with their peers.

• Social and Emotional Impact: Failure to read visual content will result in frustration and low self-esteem and will, therefore, lead to reluctance to participate in class activities. Cumulative behaviours can create a negative impact, affecting a student's academic performance.

• Safety Implications: In specific activities, such as physical education or laboratory classes, the ability to read colour forms an essential aspect of safety. For example, differentiating between various equipment and colourful warning signals can be of crucial safety importance in preventing injury accidents.

Types of Colour Blind Tests Used in Schools

Schools often make use of a number of tests to detect colour vision deficiency and advise colour vision deficiency glasses based on the test results for children. Some of the commonly used ones include:

• Ishihara Test: It is the most common test conducted to detect red-green colour deficiency. The test contains a set of plates on which dots of various sizes and colours are placed. With the dot pattern, numbers or shapes are set within the patterns that can be seen by people with normal colour vision but not by people with colour vision deficiency.

• Colour Arrangement Test (Farnsworth D-15): This is a test where coloured caps are arranged according to hue. This will identify the type and severity of colour blindness since it tests how well the student can differentiate between similar shades of colours.

• Anomaloscope: It is a very sensitive instrument to measure the degree of colourological deficiency. These devices require users to match colours under controlled conditions. Often used more in practice than in school settings because of the difficulty associated with it.

• Farnsworth-Munsell 100 Hue Test: It is a much larger test that requires a lot of time to undertake because it is concerned with the ordering of tinted tiles. Well in terms of the full examination of any subject's discriminative faculties for colours therefore tends to be used more for assessment purposes only.

• Online Colour Blindness Tests: Our free online colour vision test for students can be adopted for preliminary screenings. Based on the test results, we offer colour vision glasses that can improve the condition of colour-blind students, helping them perceive and differentiate the colours, particularly, reddish and greenish shades, better.

What Educators Must Know

Many colour blind students are unaware of their condition. People who are colour blind can see normally and drive. They simply learn to respond to how traffic signals light up, knowing that the red light is usually on top and the green light is on the bottom. Colour blindness cannot be cured, but students can enhance their vision to see better colour differences when their condition is catered to, and some changes in the classroom setting are incorporated to make the environment inclusive for all.

Students who are colour blind may:

• Unable to distinguish between specific colours or shades of similar colours.

• Struggle with assignments or projects that require them to use colour.

• Need more light in the classroom and seating accommodations.

• Feel self-conscious or frustrated about not being able to see colours, be teased or bullied because of colour blindness.

What Educators Can Do

Learning what colour blind students can and cannot see — from parents or guardians, other teachers, and the students themselves — will help you better understand and meet their needs. Colour blind students may be eligible for a 504 plan, which offers additional assistance.

Ways to assist a student with colour blindness include:

• Writing in black on a whiteboard instead of using colours.

• Make copies of handouts with high black/white contrast and avoid using coloured paper. Use patterns and labels instead.

• Write out the names of colours that are relevant to the instruction (yellow sun, green frog, etc.).

• Making sure art supplies or other supplies with colours are appropriately labelled.

Tools and Resources for Teachers to Support Colour-Blind Students

• Use high-contrast colours, patterns, and textures in learning materials. Avoid relying on colour alone to convey critical information.

• Implement software and apps that support colour blindness, like colour filters or screen adjustments, to enhance students' ability to perceive visual content accurately.

• In charts and diagrams, use text labels or symbols alongside colours to ensure readability for all students.

• Offer training for teachers on recognizing and supporting colour-blind students. Understanding their unique challenges enables teachers to create a more inclusive classroom.

• Encourage group work with peer support, where students can assist each other in tasks involving colour differentiation, promoting teamwork and inclusion.

• Utilise organisations such as Colour Blind Awareness and Colour Blind Resource, which provide guidance and tools tailored to support students with colour blindness.

Benefits of Early Detection of Colour Blindness in Students

• Educators are able to improvise on the use of patterns and labelling of materials to make them more accessible to students with colour blindness.

• It improves academic performance by an understanding and confidence level, hence resulting in better grades.

• It allows total engagement in class activities to ensure that the classroom is more inclusive.

• Prevents frustrations with the consequent mental strain.

• Offers advice to students dealing with colour vision deficiency for a suitable career in which they can excel.

Final Note

Colour vision deficiency tests in school go beyond being mere diagnostic tools –– they represent an entrance to developing a productive and user-friendly learning environment where every learner has a fair opportunity to succeed. Teachers can take appropriate remedial measures when colour vision deficiencies are identified in advance (offer colour vision deficiency glasses). By providing all the right tools and resources, schools should be able to ensure that students have full participation in their studies, whether they have any colour vision deficiency or not, so they can realise their academic goals.

Take our free colour vision test designed for students and let them live life more confidently and excel academically.

Browse our colour vision deficiency glasses designed for students.