How to Adjust Your Glasses Frame at Home

Step 1: Tightening the Screws - A Crucial Prerequisite

Before adjusting your eyeglasses, there's an essential prerequisite: tighten all screws on the frame. This step is crucial, especially for the screws on the endpieces (lugs). Here's why:

• Tightening all screws ensures frame stability during adjustment.
• Loose screws, particularly on the endpieces, may become permanently damaged if left loose during the adjustment process.
• The force applied during adjustments can cause loose screws to strip, making them impossible to tighten later.

Step 2: Adjusting the Front of the Frame

Place the frame face down on a flat surface. Because our faces are curved, the lenses should normally tilt backward (upward) at about 8 degrees on the outer sides (See the figure below).

Adjustment is necessary if the frame curvature is abnormal, such as straight (See the figure below) or tilting forward (downward), adjustment is needed.

When adjusting, use your index finger and thumb to grip the welding points of the bridge to protect them from breaking during the adjustment process. Apply slight inward pressure with both hands, adjusting the curvature of the bridge to achieve the desired frame curve(See the figure below).

Looking down at the frame from above, when the upper and lower edges of one lens frame align, observe whether the upper and lower edges of the other lens frame also align. If they do, it indicates that the two lens frames are symmetrical, also known as symmetrical lens front tilt angle(See the figure below).

If they are asymmetrical(See the figure below), use both hands to grip the two lens frames and adjust the bridge through counterforce (See GIF below). Metal frames can be adjusted directly by hand, while plastic frames need to be heated before adjustment.

Step 3: Adjusting the Endpieces(Lugs)

Observe whether the angles of the two temple arms are symmetrical (See the figure below).

If they are asymmetrical(See the figure below), we need to adjust the temple arm that is tilting outward.

Place the outward-tilting endpiece against the table surface, grip the lens frame with both hands and press forward(See GIF below)until the angles of both temple arms are symmetrical.

Step 4: Adjusting the Temple Arms

Turn the glasses upside down and place them on a flat surface. This allows you to easily distinguish whether the heights of the two temple arms are consistent (See the figure below).

If the heights are inconsistent (See the figure below), we need to adjust the front tilt angle of one of the endpieces.

Hold the lens frame with one hand, and grip the endpiece that needs adjustment with the other hand. Bend it slightly upward or downward (See the figure below) until the heights of both temple arms are consistent.

Step 5: Adjusting the Temple Tips

Place the glasses on a flat surface. If the heights of the two temple tips are inconsistent (see image), bend the higher temple tip slightly (see image) to achieve consistent curvature and height for both temple tips (see image).